ATTAC Consulting Group’s Leadership and Consulting Team

Tara Alderink is an accomplished project management professional with a track record of driving business growth, fostering client relationships, and delivering exceptional project execution. With experience in healthcare, pharmaceuticals, and logistics, she excels at problem-solving, strategic planning, and optimizing operational efficiency.

At ATTAC, Tara forges strong partnerships with the firm’s RADV audit clients. Her commitment to building on the foundation of trust and transparency makes make the audit process more efficient and less of a burden for Medicare Advantage plans.

In her former position with Imperial CRS, a clinical trial services company, Tara played a pivotal role in managing complex healthcare and pharmaceutical projects, successfully prioritizing the needs of multiple clients and more than 85 clinical trial protocols. She was instrumental in expanding partnerships with pharmaceutical and healthcare organizations, and led key initiatives to streamline logistics and data management for clinical studies.

Tara’s leadership extends beyond project execution—she is a trusted advisor who cultivates long-term client relationships and identifies growth opportunities. Her ability to manage complex initiatives underscores her strategic mindset and commitment to excellence.

Passionate about efficiency, innovation, and client success, Tara continues to make a lasting impact in project management and business transformation.

Marcia has more than 30 years of experience and leadership and management of clinical and quality programs for Medicaid and Medicare Advantage programs and commercial products.  She has deep expertise in the design, implementation and oversight of delegated medical management program models, including development of provider incentive and monitoring programs focused on effective and compliant medical management.    Marcia also has deep expertise in evaluation of HEDIS quality data and designing of interventions targeted at addressing quality and population health initiatives.     Among the many senior executive roles Maria held over her career, she served as Vice President for Medical Management with Inland Empire Health Plan (CA.)

Alan is a senior project manager with more than 26 years of experience in project management for large-scale systems and operations implementations, and engagements with specialization in Medicaid MMIS system implementation and operations. He has nearly a decade of experience in Medicare health plan, start-up and operations. Alan advises and guides client engagements in IT, operations and business development. He manages project teams, project management and task identification to ensure execution of each client’s objectives. Alan also consults on health plan operations build and re-engineering. Prior to joining ATTAC Consulting Group, Alan served as chief operating officer at Ally Align, a multi-state MA plan, and as SVP and CIO for Government Healthcare Solutions at Xerox / ACS.

Dr. Michael Chapman, DO, MHCM, MS, FACOEP, is a Clinical Advisor at ATTAC Consulting Group. He is board-certified in emergency medicine, with more than a decade of clinical experience.

Dr. Chapman has served as Medical Director for a health plan with more than a million members in commercial, Medicare Advantage and Medicaid products. In his work with ATTAC clients, he focuses on the clinical aspects of managed care, quality and STAR programs, including development and application of utilization management criteria, quality monitoring and interventions, and creating operational efficiencies in clinical program application to reduce administrative costs.

Prior to joining ATTAC, Dr. Chapman served as the Medical Director for Priority Health, where he applied evidence-based clinical protocols that were compliant with CMS regulations, state regulations and NCQA criteria. Notably, he reengineered clinical processes that resulted in a decrease in Medicare appeals by 21% in just six months. This achievement increased customer satisfaction, enhanced claims’ processing efficiency, and lowered administrative costs.

Dr. Chapman held the position of Executive Director of Medical Affairs at Oaklawn Hospital and was Managing Partner with Kalamazoo Emergency Associates.

He is a a flight surgeon in the Michigan Air National Guard, where he has been decorated for negotiating a bilateral international agreement on medical licensure.

Dr. Chapman holds a Doctor of Osteopathic Medicine from Lake Erie College of Osteopathic Medicine, an MHA from the Harvard School of Public Health, and a Master of Military Operational Art and Science from Air Command Staff College.  

Sharon is a member of ACG’s clinical pharmacy team supporting Medicare Part D, Medicaid, and pharmacy benefit management groups. Sharon has extensive experience in integrated clinical practice, formulary management, operational process reengineering and PBM oversight. She has designed and implemented utilization management programs for long-term care provider groups (Medicare Part A/ managed care) and has organized and participated on corporate JCAHO certification teams, for both skilled nursing facilities and pharmacies. Her experience as both a clinical pharmacist and national manager provides unique qualifications and insights into the internal workings of a broad scope of healthcare environments, including acute care, chronic care, long term care (LTC), and Medicare/Managed care arenas. She has over 20 years of healthcare industry experience and has worked for RX Answers and Phamerica, as well as serving on the Board of Directors for the American Society of Consultant Pharmacists.

Rich is an expert in encounter submissions and risk adjustment efforts. He has managed encounter submission and risk adjustment analytics teams across Medicare Advantage, ACA and Medicaid programs, along with risk adjustment operations and RADV for the ACA Marketplace.

He has designed, deployed, analyzed, and refined prospective and retrospective programs. Rich draws on his extensive experience with data for continuous improvement and optimization of risk adjustment efforts, aimed at maximizing ROI and minimizing costs.

Rich has also served as an encounter (EDPS/Medicaid) and Edge Server platform product-owner, managing requested or required changes to software.

Prior to working in the healthcare industry, he spent 15 years using advanced quantitative analytics to improve customer loyalty and retention across banking, market research and database marketing agencies.

Darlene is a member of ACG’s Government Programs Practice Group. She brings broad expertise in organizational development and compliance management in the Medicare and Medicaid arenas. For over a dozen years, she has held senior legal and compliance roles within the insurance and managed care industries, where she has led activities as diverse as health plan start-up, management of JCAHO and NCQA accreditation, state and CMS regulatory oversight audits, managed line responsibility for grievances and appeals, sales agent oversight and market conduct along with business processes and policy for corporate record retention. She has previously worked for Centene Corporation, AmeriGroup and United Healthcare.

Eric has more than 30 years of experience in leading ATTAC’s data analytics group. He is adept in design and development of application front-end and back-end solutions to support numerous business needs. Eric is an experienced data technician and architect of database systems to support analytics and production applications. He is deeply experienced in ACA risk model, CMS Medicare universes and other data models used in government healthcare programs.

Prior to joining ATTAC Consulting Group, Eric service as chief security officer for Referral MD, COO /VP of application development at CRM Solutions, director of applications for AeroSoft, and senior project engineer for CFD Research Corporation. 

Tina is a provider network contracting leader with 25+ years’ experience building Medicare, Medicaid and Marketplace networks and applying value-based payment models. She has C-Suite expertise in managing all aspects of health plan operations, including P&L, policy, strategy, plan management, network development, regulatory and compliance. 

Prior to joining ATTAC, Tina held state plan president positions with United Health Group of Mississippi and Molina Healthcare of Missouri. She served as executive director at Harmony Health, with responsibility for regional and statewide health plan performance, and various leadership positions within Coventry Healthcare (Missouri).

David has more than 30 years of experience provider reimbursement, risk-based contracting and value-based payment models. He works with health plans, physician groups, IPAs, medical groups and hospitals. He has extensive experience in market and product development, healthcare reimbursement and financing, development, and management of large-scale provider networks. David has worked with commercial, Medicare, Medicaid, and dual-eligible health plans and their contracted providers on the design and implementation of value and risk-based reimbursement, and in setting up data analytics to evaluate and monitor success.

In addition to designing and developing provider networks throughout the US, David has broad experience assisting clients in developing provider networks and meeting regulatory requirements for Medicare, Medicaid, and employer group plans. This includes analysis of provider access and adequacy compliance and the related regulatory filings.

Prior to joining ATTAC Consulting Group, David held senior management roles at BCBS, Carolina Medical Care, Humana Health Plans and as a consultant throughout the United States. He is a graduate of the University of Pennsylvania.

Linda brings more than 30 years of expertise to clients in the health insurance and managed care industries. She is a senior consultant with experience in systems, operations, management and implementations. She has assisted states and health plans in procurement, analysis, monitoring and independent verification and validation. Linda has expertise in business process mapping and re-engineering and developing cohesive teams through hands-on management.

Over her career, she has held senior positions in operations and IT, and consulting roles United Health Care, Mercer Consulting, Health Services Advisory Group and Affiliated Computer Services Corp.

Tammy Hall is a results-driven healthcare professional with extensive experience in health plan operations, specializing in compliance, risk management, and regulatory adherence. With a proven track record in leading comprehensive compliance programs, Tammy has successfully guided health plans through the complexities of CMS guidelines, state, and federal regulations.

Throughout her career, Tammy has excelled in developing and implementing robust compliance frameworks, conducting in-depth risk assessments, and leading audits to ensure operational excellence. Her expertise spans Medicare Advantage and Part D programs, appeals and grievances, delegation oversight, peer-to-peer audits, and corrective action plans. She is adept at managing privacy complaints, handling regulatory submissions, and driving process improvements that enhance productivity and mitigate risk.

Tammy has held pivotal roles at prominent health plans, including KelseyCare Advantage, HealthTeam Advantage, and Blue Cross Blue Shield of North Carolina. In these positions, she led cross-functional teams, streamlined operations, and fostered a culture of ethical conduct. Her leadership in overseeing FDR compliance, preclusion screenings, and fraud, waste, and abuse programs has consistently upheld the highest standards of regulatory compliance.

Known for her collaborative approach, Tammy works seamlessly with internal and external stakeholders to navigate complex regulatory landscapes, ensuring successful audits and investigations. She is also a dedicated mentor and trainer, elevating organizational compliance awareness through education initiatives.

Lisa has more than 20 years of experience in commercial, Medicaid, and Medicare managed care operations and compliance, where she developed organizational solutions to ensure operational compliance while meeting internal and external stakeholder needs. She has developed and led multi-disciplinary teams spanning operations, compliance, and technology across a broad spectrum of managed care operations. Her work has included utilization management, care coordination, case management, disease management, appeals, grievances, credentialing, and call center operations. Linda is a strategic problem-solver adept at bringing stakeholders together to solve complex problems while identifying and evaluating problem and solution impacts, developing and implementing holistic solutions, and strengthening relationships.

Cindy is a member of ACG’s Government Programs group. She leads clients in health plan operations and compliance monitoring activities, specializing in licensure and regulatory interface, enrollment, customer service, grievance, appeal, CTM complaint management, marketing, sales oversight, HIPAA, internal and downstream delegate oversight and training program development across all operational arenas. Cindy also specializes in Accountable Care Organization (ACO) compliance programs. Her operational and compliance experience crosses Medicare, Medicaid and Commercial lines of business. She previously held senior compliance and oversight roles at WellCare Health Plans, Windsor Health (serving as CCO), and the Tennessee Department of Commerce and Insurance, with responsibility for oversight of various TennCare program plans.

Dory has nearly 40 years of experience in guiding information technology and health plan operations departments and projects for insurance, managed care and state departments including major operations and IT centers. She has guided implementation and restructuring projects for national and local insurance, managed-care organizations, and public healthcare delivery systems.

Dory has held numerous chief information officer roles with organizations including Santa Clara Family for Health, Central California Alliance for Health, LA Care (800,000 member Medicaid plan in California), FirstCare, TX, New West Health Services, Montana, along with operations and IT roles with companies including Peak Health, United Healthcare, Lincoln National, and QualMed.

She has worked as a contractor in support of CMS auditing efforts for Medicare Data Validation Audits in numerous large health plans throughout the United States.

Helene is a member of ATTAC’s Clinical Management and Compliance Teams. She supports clients with expertise in implementing clinical and quality operations for Medicaid, Medicare Advantage, dual programs, special needs plans and commercial health plans. She is a specialist in SNP Model of Care design and implementation, Medicare STARs, CAHPS, HOS and other Quality Programs and NCQA Accreditation. She has extensive experience in management of delegated provider groups and California DMHC requirements. Her past roles have included serving as director regulatory compliance and director of quality for Blue Shield of California, VP of quality improvement at Arcadian Health Plans, and VP of quality programs at Bravo Health (now part of Cigna).

Lynn has 30 years of experience leading clinical operations for utilization management, case management, quality improvement, HEDIS measurement and risk adjustment. She has developed Medicaid,  Medicare, marketplace and commercial programs focused on addressing population-health needs. Lynn has extensive experience working with healthcare delivery systems and is a master’s prepared nurse.  Her leadership experience includes inpatient, ambulatory and health plan environments.

Lynn has built and supported various community access-to-care initiatives. She has developed and implemented social determinants of health programs and has worked across membership populations. Given her work in various community care initiatives, she understands the struggle of diverse populations and the importance of delivering quality care while balancing cost efficiency.

Mia has more than 16 years of experience in regulatory compliance management with a specialization in compliance in clinical activities and oversight of behavioral health and substance abuse services. She provides legal, regulatory and compliance in clinical services for commercial and  Medicaid specialty in serious mental illness, comprehensive long-term care and children’s medical services.  Mia is a specialist in the Mental Health Parity and Addiction Equity Act and development of NQTL comparative analyses.

Prior to joining ACG, Mia served as senior compliance specialist for Centene and regulatory compliance and quality specialist for Bayfront Health (FL) and HealtheSytems.

Paul Lake is a healthcare program and project leader with more than 25 years of experience in the industry. He has directed digital transformation implementations and multiple solutions for health plans with Medicaid, Medicare and commercial core systems. He has also led provider-focused revenue cycle management solution implementations.

Paul steered multiple Program Management Office (PMO) initiatives in the payer and provider environments, including direct accountability for quality assurance deliverables.

Prior to joining ATTAC Consulting Group, Paul held senior leadership roles at Optum360, Xerox/ACS, and Dell/Perot Systems

With more than 30 years of success in healthcare environments, Ashleigh serves as the practice leader for ATTAC’s Provider Network Operations and Performance Team. She supports health plans operating Medicare, Medicaid, and commercial products, leading clients through merger and acquisition integrations, process assessments and improvements, and on-demand interim staffing placements.

Ashleigh guides health plans and providers to develop and implement processes that drive provider data uniformity, conduct provider access surveys, create efficiency and consistency in provider relations and data management, analyze provider network adequacy, and streamline credentialing processes. Additionally, she has successfully led statewide expansions and network adequacy provider contracting builds across multiple states.

Before transitioning to consulting, Ashleigh held leadership roles at Universal American and AmeriHealth Caritas, and served as a provider network contracting manager and credentialing manager at a national firm.

Katie serves as a senior audit lead within the Data Audit Group. She supports project management, day-to-day audit operations, and quality assurance activities for government-mandated risk adjustment and data validation audits. Prior to joining ATTAC Consulting Group, Katie served in senior project management and customer service roles for various organizations.

Lori has broad expertise in Medicare Part C/D and commercial appeals and grievance. She has 13 years of Medicare experience in process improvement, audit/monitoring and enrollment operations. Ms. Mercer’s experiences includes implementing operational and technological best practices to ensure quality and compliance with organizational, state and national standards. She has served in senior roles with HealthSpan Integrated Care, CVS Caremark Corporation, Smart Insurance Co. and Universal American.

Erin is an experienced and successful Medicare Advantage compliance professional with ten years of experience in the healthcare industry. Erin’s background includes leadership positions in Medicare sales compliance/agent oversight, compliance program effectiveness/administration, delegated entity oversight, and health plan operations. She is experienced with project management methodologies, managing project stakeholder responsibilities and expectations, and has led small teams of direct reports.

Nancy Mundy, RN, is a compliance expert with nearly 30 years of experience, with specialties in Medicaid and Medicare, and Commercial compliance and plan operations.  As a compliance and privacy officer, she has served on multiple executive leadership teams. Her expertise includes compliance program design and implementation, risk assessment/management and audit plan creations, key indicator report development, root-cause analysis, corrective and preventive action plan formations, ethics, third-party delegate oversight, investigations, material filings with regulators, regulator inquiries/complaints, regulatory guidance interpretation and implementation oversight, fostering regulatory relationships, governing body reporting, program integrity, and leading external audits. She has experience crosses multiple product types including Medicaid, Medicare Advantage, Medicare Part D, commercial, FEHB, and ASO self-funded arrangements. Nancy is a member of the HealthCare Compliance Association and certified in Healthcare Compliance.

Justin Murakami, JD, CHC, is a highly accomplished healthcare compliance expert with more than 14 years of experience with Medicaid, Medicare, commercial health plans and provider organizations, specializing in California’s complex regulatory landscape. He is known for his leadership in regulatory audits, compliance program development, and risk mitigation for large health plans.

At ATTAC Consulting, Justin brings deep expertise in auditing, health plan compliance, and regulatory and delegation oversight, with a focus on the nuances of the California market. His operational background enables him to effectively bridge the gap between compliance and operations, offering comprehensive solutions for clients.

At L.A. Care, California’s largest publicly operated health plan, Justin served as Manager of Regulatory Audits and Monitoring, where he led a team dedicated to commercial, Medicaid, and Medicare compliance. He oversaw audit responses, managed relationships with state and federal agencies, and ensured regulatory filings were thorough and timely. In collaboration with various departments, Justin developed and implemented corrective actions and comprehensive programs that strengthened organizational alignment. His strategic approach extended to managing projects related to regulatory disclosures and enforcement actions, accreditation, and certification.

Justin previously served as Senior SIU Investigator at HMSA Blue Cross Blue Shield of Hawaii, overseeing investigations of suspected fraud and abuse, and structuring internal reviews of operations. While with Hawaii Pacific Health as Manager of Education and Policy Programs, he led statewide initiatives, including anti-violence training programs and public policy advocacy, and worked with providers, government agencies and community organizations to implement best practices and requirements related to services for crime victims.

He holds a JD from Temple University’s Beasley School of Law, and a BA in International Relations from the University of Pennsylvania.

Victoria Nadzam, MSN, RN, is an accomplished healthcare professional with expertise in clinical operations management, process and performance improvement, and accreditation and regulatory compliance. She has a proven track record of driving compliance with NCQA standards and optimizing healthcare delivery across diverse sectors, including Medicare, commercial ACA, and Medicaid.

With Victoria’s background in clinical excellence, she is a key asset for ATTAC clients seeking to enhance operational efficiencies and audit readiness. Her hands-on experience supports organizations in preparing for NCQA accreditation and CMS utilization management audits, and in driving cost reduction through effective care management and utilization management programs.

Victoria held two executive roles with an Ohio health plan serving more than one million members. As Vice President of Clinical Operations, she led key initiatives in appeals management, clinical training, and regulatory compliance, significantly improving operational efficiencies and CMS audit readiness. As Vice President of Clinical Care Management, she oversaw a team of more than 200 employees, implementing comprehensive strategies to optimize case and utilization management.

Victoria also served as Health Services Director for a Medicaid MCO, where she successfully led efforts to secure NCQA accreditation in under 60 days and ensured ongoing regulatory compliance.

Her leadership has consistently improved operational efficiency, cost control, and provider satisfaction, while maintaining the highest standards of regulatory and accreditation compliance.

Elizabeth serves as program director in ATTAC’s Data Audit Group. She supports clients on consulting engagements related to Medicare Advantage and Part D enrollment, reconciliation and premium billing operations, where she provides guidance on business process design and process controls and oversight and monitoring.

Prior to joining ATTAC, Elizabeth held roles including manager of enrollment and premium billing with AvMed Health Plans, manager of A/R with CompBenefits, and finance administrator with PNR Developers

Courtney Overton is a seasoned healthcare compliance and regulatory expert with extensive experience in health plan operations, audit readiness, and accreditation standards. With more than a decade of expertise in quality assurance, reporting, and regulatory compliance, she specializes in ensuring health plans meet state and federal regulations including CMS, NCQA, and quality review organization requirements.

In her work with ATTAC’s clients, Courtney manages the firm’s mock audit projects and independent validation audits. She also assists in writing data analytics specifications for the compliance solutions team’s timeliness, data error and compliance alert reports.

In her former role as the manager for utilization management quality assurance at Presbyterian Health Plan, Courtney led compliance initiatives for utilization management, overseeing external audits, regulatory reporting, and internal monitoring. She developed internal controls, implemented corrective action plans, and enhanced audit readiness processes to maintain operational excellence. Her technical proficiency includes creating audit tools, dashboards, and monitoring systems to streamline compliance efforts and improve regulatory adherence.

Courtney has a strong background in training and operational process improvement, having developed standardized training materials and reporting tools to enhance efficiency across teams. Her expertise in data analysis and regulatory interpretation allows her to drive continuous improvement in health plan compliance and operations.

Courtney brings a structured, data-driven approach to regulatory management. She is passionate about ensuring health plans operate effectively within compliance frameworks while optimizing processes for better outcomes.

Pooja has more than 15 years of experience driving business and information technology transformations to successfully advance healthcare and pharmaceutical industries. She has focused on establishing a culture of collaboration and transparency, managed implementations of complex, heavy cross-dependency ground-up systems, upgrades and enhancements, and held high-visibility positions. Pooja provides independent, expert and general program management support to multi-disciplinary and interdepartmental teams, and guides clients through operational and technology initiatives. She has served as the primary liaison for individual departments and entire organizations to support effective and sustainable practices to a wide range of audiences. She has supported writing and updating SOPs and implemented interoperability and training customer service departments for a health plan’s implementation of Medicaid. She is proficient in Waterfall, RUP, SCRUM, SAFe and Agile methodologies. Pooja has a strong knowledge of Medicaid, Medicare, ACOs, MCOs and healthcare standards including ACA, price transparency, interoperability, HIPAA 5010, ICD-10, as well as claims and EDI standards (837, 835, 820, 270/271, 834).

Megan supports ACG operations, IT and data management engagements, bringing clients 13 years of experience as a business analyst, configuration support analyst, and work team lead in documentation of business requirements, process and data work flows to support configuration of various systems. She also brings strong data analytic skills along with work plan development and project management experience to engagement teams. Prior to joining ATTAC Consulting Group, Megan held roles at LA Care Health Plan, FlexTech, Inc., SynerMed, Inc. and Arcadian Management Services Inc.

Ms. Regalado has more than 25 years of healthcare experience with comprehensive knowledge of compliance regulations related to federal and various state Medicaid and commercial requirements. She has extensive experience in health plan operations, including claims management, claims auditing, system configuration, business process design, and workflow development. She excels at the ability to analyze processes for improvement and execute changes needed in a timely and efficient manner. Ms. Regalado has broad experience in healthcare claims functions.

Jon is a seasoned executive guiding risk adjustment programs for Medicare Advantage, ACA /Marketplace and Medicaid programs. He brings expertise in development and implementation of effective prospective and retrospective risk adjustment initiatives, appropriately targeted to maximize ROI. He is deeply skilled at guiding and developing analytics to identify/suspect potential risk adjustment opportunities, as well as monitoring for inappropriately coded claims and diagnoses to ensure accuracy in risk adjustment submissions to the MA Encounter Data Processing Systems and ACA Edge Servers.  Jon has guided numerous organizations to develop effective controls to reduce data leakage and to manage submission errors.

Prior to joining ACG, Jon served as director of risk adjustment for a multi-state regional health plan that offered ACA /MA and Medicaid products, as well as serving as regional manager for risk adjustment at a national health plan.

Chhaya Surti, PharmD, MJ, is a seasoned pharmacist consultant with extensive experience in health plan operations. In her role with ATTAC, Chhaya leverages her pharmaceutical expertise to provide strategic guidance, ensure compliance with regulatory standards, and optimize operational efficiency.

Prior to ATTAC, she worked with Cigna and CVS Caremark in leadership roles to direct Part D audits, FDR compliance, PBM oversight, and clinical affairs. At SXC Health Solutions (now part of UnitedHealth Group), Chhaya was the clinical operations director for prior authorization and utilization management, overseeing a center with more than 100 pharmacy technicians and clinical pharmacists.

She has led the development of clinical protocols, customized client processes, and provided consultative support to internal and external clients. Additionally, she has contributed to innovative clinical product enhancements, enabling solutions that align with URAC, NCQA, and CMS standards.

Jennifer Venditti has more than 30 years of experience supporting program/project management and business/IT solution implementations. Throughout her career, Jennifer has focused on working with organizations to maximize the use of technology to support operational and financial goals. Recently, she has worked with organizations to establish population health, health equity, care management, and member/provider engagement strategies and solutions to cross clinical, operational and technical boundaries. Jennifer has significant project management, business and IT management, third-party solution, product development and vendor management experience that can be applied in any organizational environment. She has served in leadership positions at Ernst & Young, as well as provider, vendor and payer organizations.