Coding and Payment Policy Subcommittee

Reports to:

Medical Practice and Quality Committee


Advise the Medical Practice and Quality Committee on: (a) Medicare and other third-party payer policies to improve coverage, improve payment tied to quality, value, and shared savings through alternative payment models, and reduce practice hassles; (b) recommendations to other major entities that interface with Medicare and other third-party payers; (c) recommendations for improving coding and documentation of physician services; resources to help internists practice high-quality, cost-effective care; content for annual Internal Medicine meetings regarding Medicare and other third-party payers; d) recommendations based on the Medicare Access and Children's Health Insurance Program Reauthorization Act of 2015 (MACRA) and other relevant payment reform laws that support the ongoing transformation of healthcare delivery by new Medicare payment and delivery models for physicians and other clinicians. Assist ACP's CPT advisor in reviewing proposed coding issues and policies from the CPT Editorial Panel and develop CPT and other coding proposals that advance the needs of internists, and function as a ACP's Specialty RVS Committee, as required by the RUC's guidelines for specialty societies.

Composition (14-15)

Chair; Vice Chair; 12-13 members to include Chair, Subspecialty Advisory Group on Socioeconomic Affairs (SAGSA); any ACP member serving on the Current Procedural Terminology (CPT) Editorial Panel and alternate; CPT advisor, or American Hospital Association Coding Advisory Board; and the RUC representative and alternate and RUC advisor and alternate. Periodically, the ACP will hold the RUC Primary Care seat for a two-year term during which time the Subcommittee will include 15 total members. Non-reserved slots should go to individuals identified as possessing expertise in coding, reimbursement, payer policy, alternative payment models; expertise in value-based payment and social drivers of health; current or past Medicare or private payer Medical Director, or Medicare Carrier Advisory Committee (CAC) member preferred. At least one member position to be filled by an early career physician.


Chair, Vice Chair, and members serve one-year terms renewable up to three times for a total of four years, unless extended by the Chair, Board of Regents.

2024-25 Members

Charles J. Hamori, MD, FACP, Chair (Regent)
Partner, Southern California Permanente Medical Group
Voluntary Assistant Clinical Professor of Medicine
UCSD Department of Medicine
La Mesa, CA
Specialty: Internal Medicine

Selvam Joseph Mascarenhas, MD, FACP, Vice Chair (Governor)
Medical Director and Physician Advisor
Christiana Care CareVIO
Hockessin, DE
Specialty: Internal Medicine

Shreya Parikh Chandra, MD, FACP
Physician Director of Coding, San Diego
Southern California Permanente Medical Group, San Diego
La Mesa, CA
Specialty: Internal Medicine

Jeannine Z. Engel, MD, MACP
Associate Professor of Medicine
UVA Health
Charlottesville, VA
Specialty: Internal Medicine

Martha L. Gray, MD, FACP
Founder Partners in Internal Medicine Ann Arbor
Ann Arbor, MI
Specialty: Internal Medicine

Kermit Jones, MD, FACP
Internal Medicine Physician
Permanente Medical Group
Woodland, CA
Specialty: Internal Medicine

Michael (Doug) Leahy, MD, MACP
Internal Medicine Physician
Summit Medical Group PLLC
Knoxville TN
Specialty: Internal Medicine

Joshua M. Liao, MD, MSc, FACP
Associate Professor of Medicine; Adjunct Associate Professor of Public Health
University of Washington
Seattle, WA
Specialty: Hospital Medicine

J. Leonard Lichtenfeld, MD, MACP
Chief Medical Officer
Jasper Health
Atlanta, GA
Specialty: Internal Medicine

Scott Manaker, MD, PhD, MACP
Professor of Medicine
University of Pennsylvania
Philadelphia, PA
Specialty: Pulmonary Disease

Evan J. Pollack, MD, FACP
National Medical Director/Chief Medical Officer
Medical Auditing and Review Solutions
West Chester, PA
Specialty: Internal Medicine

Matthew J. Press, MD, MSc, FACP
Associate Professor of Medicine at the Hospital of the University of Pennsylvania
University of Pennsylvania School of Medicine
Philadelphia, PA
Specialty: Internal Medicine

Raphael Rabinowitz, MD, FACP
Assistant Attending Physician
Memorial Sloan Kettering Cancer Center
Long Island City, NY
Specialty: Internal Medicine

Sidra Raza, MBBS, FACP
Assistant Professor, General & Hospital Medicine
University of Kansas
Overland Park, KS
Specialties: Internal Medicine, Hospital Medicine

Srilaxmi Tumuluri MD, MS, FACP
Community Care Physician
Medical Director, Transitions of Care
Latham, NY
Specialty: Internal Medicine

Staff Liaison: Dejaih Johnson

To contact any of these individuals, please consult the Member Directory (members only) or request assistance from