PNHP

Nahiris M. Bahamón, MD

Nahiris M. Bahamón, MD

Pediatrics

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Dr. Nahiris M. Bahamón is a community pediatrician at Lowell Community Health Center in Lowell, MA. She is an experienced advocate for increased access to high quality health care, especially for immigrant and other marginalized communities. Dr. Bahamón has also worked with the American Academy of Pediatrics to increase awareness about the needs of immigrant families, and to increase access to culturally sensitive, high quality care. Originally from Colombia, she moved to the U.S. as a refugee with her family.

Dr. Bahamón has been active in the movement for Medicare for All since medical school. She was a co-founder of Residents for a National Health Program and served on the PNHP Board of Directors. Dr. Bahamón earned her medical degree from Boston University and completed her residency in pediatrics at the University of Chicago. She is available to speak in English and Spanish.

Sanjeev K. Sriram, MD, MPH

Sanjeev K. Sriram, MD, MPH

Pediatric Medicine

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Dr. Sanjeev Sriram practices general pediatrics in Maryland at a federally qualified health center. He is a nationally known advocate for health care justice and racial equity, serving on the board of Physicians for National Health Program, as a Senior Advisor for Social Security Works, and as the leader of the “All Means All” campaign to make racial equity a cornerstone of a future national health program. Dr. Sriram has been a contributor to The Huffington Post, The Hill, Common Dreams, Rewire, We Act Radio, and ACT-TV. 

Dr. Sriram completed his medical degree and residency at UCLA, where he served as chief resident at the Department of Pediatrics. He earned his masters in public health after completing the Commonwealth Fund Fellowship in Minority Health Policy at the Harvard School of Public Health.

Samuel Dickman, MD

Samuel Dickman, MD

Internal Medicine

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Dr. Samuel Dickman is a practicing internist, abortion provider, and health policy researcher. He currently serves as the chief medical officer at Planned Parenthood of Montana and a researcher for the City University of New York Research Foundation. Dr. Dickman previously worked as medical director for Primary Care at Planned Parenthood South Texas. 

Dr. Dickman conducts research on inequality in the health care system, reproductive health, and substance use, and has published findings in JAMA, the New England Journal of Medicine, Health Affairs, and The Lancet. Since 2017, he has served as a commissioner on the Lancet Commission on U.S. Public Policy and Health. Dr. Dickman has also served as an expert witness and consultant in legal cases involving immigration, asylum, and reproductive care. His opinion pieces have been published in major news outlets such as The New York Times and The Guardian.

Dr. Dickman earned his medical degree from Harvard, and completed his residency in internal medicine at the University of California, San Francisco (SF General Hospital).

Ed Weisbart, MD, CPE, FAAFP

Ed Weisbart, MD, CPE, FAAFP

Family Medicine

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Dr. Ed Weisbart is the national board secretary and MO chapter chair of Physicians for a National Health Program, a non-profit non-partisan organization of more than 25,000 physicians and other health care advocates in support of a publicly financed, nonprofit, single-payer national health insurance program that would fully cover medical care for all Americans.

After practicing family medicine for 20 years at Rush Medical Center in Chicago, he moved to St. Louis in 2003 to serve as chief medical officer of Express Scripts until retiring in 2010. He volunteered as an assistant professor of clinical medicine at Washington University in St. Louis from 2004 until retiring clinically in 2021.

He also serves as president of the Consumers Council of Missouri, a nonprofit organization that works to build a more inclusive and equitable community through advocacy, coalition building, collaboration, and community education.

Dr. Weisbart received his medical degree at the University of Illinois in Chicago in 1979 and completed his family medicine residency and a fellowship in family medicine education at Michigan State University in 1982.

Dr. Weisbart has an extensive history of success across a variety of health care environments with a strong focus on strategic planning, medical group leadership, quality and operational improvement, physician practice enhancement, innovative program development, clinical integrity, primary care, and political advocacy. He is a national speaker with dozens of articles published in both national medical journals and local media regarding the health care needs of the uninsured.

Adam Gaffney, MD, MPH

Adam Gaffney, MD, MPH

Pulmonary and Critical Care Medicine

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Dr. Adam Gaffney. is an assistant professor of medicine at Harvard Medical School, a pulmonary and critical care physician at the Cambridge Health Alliance, a health policy researcher, and a writer and commentator on issues of medicine and policy.

His research focuses on national health care reform, health care equity, and disparities in lung health. Dr. Gaffney has authored or co-authored more than 60 journal articles, with first-author publications in such journals as the Lancet, Annals of Internal Medicine, British Medical Journal, JAMA Internal Medicine, Health Affairs, the American Journal of Public Health, and elsewhere. He is also the author of the book “To Heal Humankind: The Right to Health in History,” published in 2017 by Routledge.

A past-president of Physicians for a National Health Program (PNHP), Dr. Gaffney is also a frequent writer on matters of health care and policy, and has published articles in outlets including the New York Times, Washington Post, Atlantic, New Republic, USA Today, and the Boston Globe. He is also a frequent media guest, and has appeared on NPR, MSNBC, Fox Business News, the BBC, and elsewhere.

Dr. Gaffney received his medical degree from New York University and his MPH from the Harvard T.H. Chan School of Public Health. He completed his residency at the Columbia University Medical Center, where he served as chief resident, and his fellowship in pulmonary and critical care medicine at Massachusetts General Hospital, Brigham and Women’s Hospital, and the Beth Israel Deaconess Medical Center.

Claudia M. Fegan, MD, CHCQM, FACP

Claudia M. Fegan, MD, CHCQM, FACP

Internal Medicine

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Dr. Claudia Fegan is chief medical officer of Cook County Health, where she provides executive oversight for the health system’s medical practices and health policy initiatives. Dr. Fegan also serves as national coordinator of Physicians for a National Health Program, where she has appeared on national television and radio programs on behalf of the organization, and has testified before congressional committees on a wide range of health care issues. She has lectured extensively to both medical and community audiences on health care reform in the U.S. and Canada, and is a co-author of the book “Universal Healthcare: What the United States can Learn From the Canadian Experience” and a contributor to “10 Excellent Reasons for National Health Care.”

Dr. Fegan is a past president and board member of the Chicago-based Health and Medicine Policy Research Group. In 2017, she received the Paul Cornely Award from the American Public Health Association, and in 2023 Becker’s Health Care named her one of 149 Black Health Leaders to Know. 

Dr. Fegan received her undergraduate degree from Fisk University and her medical degree from the University of Illinois College of Medicine. She is a diplomate of both the American Board of Internal Medicine and the American Board of Quality Assurance and Utilization Review Physicians.

Diljeet K. Singh, MD, DrPH

Diljeet K. Singh, MD, DrPH

Integrative Gynecologic Oncology

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Diljeet K. Singh is a women’s health advocate and an integrative gynecologic oncologist in clinical practice since 1999. Dr. Singh received her medical degree from Northwestern University and master’s degree from the Harvard School of Public Health. She completed an obstetrics and gynecology residency at Johns Hopkins Hospital and a gynecologic oncology fellowship at the MD Anderson Cancer Center. She completed her doctoral degree in public health on cost analysis at the University of Texas School of Public Health and an associate fellowship in integrative medicine at the University of Arizona. She currently serves as president of Physicians for a National Health Program.

Carol Paris, MD

Carol Paris, MD

Psychiatry

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Dr. Carol Paris is a past president of PNHP, and a recently retired psychiatrist who worked for more than 25 years in private practice, community mental health, prison psychiatry, and academia, including a year as a consultant psychiatrist in New Zealand, where she experienced a single-payer system firsthand. She currently resides in Nashville, Tenn., where her primary interests include mentoring medical students and early career physicians for leadership in advocacy. Dr. Paris earned her medical degree from West Virginia University School of Medicine.

Robert L. Zarr, MD, MPH

Robert L. Zarr, MD, MPH

Pediatrics

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Dr. Robert Zarr is a physician researcher and public health pediatrician based at Unity Health Care, Inc. and Children’s Hospital of Eastern Ontario in Canada. He has provided medical care to minority and immigrant populations for more than 20 years.

A longtime advocate for Medicare for All, Dr. Zarr served as PNHP president from 2015 through 2016. He founded and was the first medical director of Park Rx America, a community health initiative to prescribe nature to patients and families to prevent and treat chronic disease and promote wellness. A certified nature and forest therapy guide, Dr. Zarr previously served as the Park Rx Advisor to the National Park Service in his national advocacy to connect patients to parks.

Dr. Zarr earned his medical degree at Baylor University and his MPH at the University of Texas Health Science Center in Houston, and completed residency in pediatrics at Texas Children’s Hospital/Baylor.

Susan Rogers, MD, FACP

Susan Rogers, MD, FACP

Internal Medicine

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Dr. Susan Rogers, immediate past president of PNHP, is recently retired from Stroger Hospital of Cook County, where she now serves as a volunteer attending hospitalist and internist. While at Stroger Hospital, she was co-director of medical student programs for the Department of Medicine and received numerous teaching awards. She is an assistant professor of medicine at Rush University, where she serves on the Committee of Admissions. 

Dr. Rogers received her medical degree from the University of Illinois College of Medicine and completed her residency at Cook County Hospital, where she served an additional year as Chief Resident. She previously was medical director of the Near North Health Service Corp, a FQHC in Chicago. Dr. Rogers is a fellow of the American College of Physicians, and a member of the National Medical Association. A longtime advocate of health care justice and racial equity, Dr. Rogers has testified before Congress and spoken to both medical and community audiences around the country.

Paul Y. Song, MD

Paul Y. Song, MD

Radiation Oncology

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Dr. Paul Song is a radiation oncologist, biotech executive, and health reform activist. He recently served on the faculty of the Samuel Oschin Cancer Center at Cedars Sinai Hospital, and currently sees Medicaid and uninsured patients at Dignity California Hospital. Dr. Song is the chief operating officer/chief medical officer of NKMax America, where he oversees translational research and clinical programs. He is also the chief medical officer of Hawkeye Bio. 

Dr. Song earned his bachelor’s degree from the University of Chicago and his medical degree from George Washington University. He completed his residency in radiation oncology at the University of Chicago, where he served as chief resident, and completed a brachytherapy fellowship at the Institute Gustave Roussy in France. As a past chair of PNHP’s California chapter, and advisor to PNHP’s national board, Dr. Song has made dozens of presentations to community and medical audiences, as well as national news outlets.

Oliver T. Fein, MD, FACP

Oliver T. Fein, MD, FACP

Internal Medicine

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Dr. Oliver Fein is a professor of clinical medicine-emeritus at Weill Cornell Medical College,
where he is co-director of the David Rogers Health Policy Colloquium. He recently retired from
clinical practice and as associate dean responsible for the Office of Affiliations and the Office of
Global Health Education.

Dr. Fein is a past president of Physicians for a National Health Program and board chair of PNHP’s New York Metro Chapter. He is a past vice president of the American Public Health Association, where he served for four years on the executive board.

Much of Dr. Fein’s work has focused on health system delivery reform and access to care for
vulnerable populations. His writings include a chapter in the book “10 Excellent Reasons for National Health Care”; an article on ethical issues and global health in Academic Medicine; an editorial in Medical Care; and an article on U.S. health care reform and the presidential candidates in the Journal of Health Services Research and Policy.

Dr. Fein received his medical degree from Western Reserve University, and completed
his internship at Cleveland Metropolitan General Hospital and his residency at Lincoln Hospital
in the Bronx. He then became director of general medicine outpatient services at the
Columbia Presbyterian Medical Center and subsequently acting-director of the division of
general medicine at the College of Physicians and Surgeons of Columbia University. Dr. Fein was a Robert Wood Johnson health policy fellow in 1993-1994, where he worked as a legislative assistant for the Senate Democratic Majority Leader.

Dr. Fein received the Haven Emerson Award from the Public Health Association of New York
City in 2001; the Lifetime Achievement Award from the Robert Wood Johnson Health Policy
Fellowship Program in 2008; the David Calkins Award for Health Policy Advocacy from the
Society of General Internal Medicine; and the Sedgwick Memorial Medal for Distinguished
Service from the American Public Health Association in 2021.