Clinicians affiliated with Massachusetts General Physicians Organization Inc
3,558 clinicians on file with this group · most practice in Boston-Cambridge-Newton, MA-NH · PAC ID 2466365820
2,771 clinicians affiliated with Massachusetts General Physicians Organization Inc are in the 2024 Medicare Part B data, 2,106 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.
Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report
Affiliated clinicians by specialty, 2024
All specialties · Nurse Practitioner (331) · Internal Medicine (250) · Diagnostic Radiology (166) · Physician Assistant (166) · Anesthesiology (149) · Neurology (141) · Certified Registered Nurse Anesthetist (CRNA) (101) · Cardiology (96) · Psychiatry (90) · Pathology (85) · Hematology-Oncology (81) · Emergency Medicine (79) · Hospitalist (76) · Physical Medicine and Rehabilitation (72) · Gastroenterology (71) · Endocrinology (57) · Infectious Disease (56) · General Surgery (52) · Medical Oncology (46) · Dermatology (43) · Psychologist, Clinical (42) · Nephrology (41) · Pulmonary Disease (41) · Orthopedic Surgery (39) · Obstetrics & Gynecology (38) · Radiation Oncology (36) · Critical Care (Intensivists) (24) · Hospice and Palliative Care (23) · Rheumatology (23) · Neurosurgery (22) · Urology (21) · Allergy/ Immunology (18) · Family Practice (17) · Clinical Cardiac Electrophysiology (16) · Thoracic Surgery (16) · Vascular Surgery (13) · Surgical Oncology (12) · Oral Surgery (Dentist only) (10) · Plastic and Reconstructive Surgery (10) · Advanced Heart Failure and Transplant Cardiology (9) · Geriatric Medicine (8) · Hematology (8) · Pediatric Medicine (8) · Interventional Cardiology (7) · Sports Medicine (7) · Adult Congenital Heart Disease (5) · Cardiac Surgery (5) · Pain Management (5) · Colorectal Surgery (Proctology) (4) · Licensed Clinical Social Worker (4) · Otolaryngology (4) · Podiatry (4) · Addiction Medicine (3) · Gynecological Oncology (3) · Hand Surgery (3) · Interventional Radiology (3) · Registered Dietitian or Nutrition Professional (3) · Certified Clinical Nurse Specialist (2) · Certified Nurse Midwife (1) · Interventional Pain Management (1) · Licensed Professional Counselor (1) · Maxillofacial Surgery (1) · Ophthalmology (1) · Preventive Medicine (1)
Specialty links go to the specialty in Boston-Cambridge-Newton, MA-NH.
Clinicians affiliated with Massachusetts General Physicians Organization Inc, 2024
Alphabetical by last name; 2,701–2,771 of 2,771.
| Name | Specialty | City |
|---|---|---|
| Chi-Fu J Yang, M.D. | Thoracic Surgery | Boston, MA |
| John L Yang, M.D. | Hematology | Newton, MA |
| Judy Z Yang, M.D. | Internal Medicine | Newton, MA |
| Peter C Yang, M.D. | Hematology-Oncology | Danvers, MA |
| Nicole Yannalfo, PA-C | Physician Assistant | Boston, MA |
| Joseph Yarze, MD | Gastroenterology | Glens Falls, NY |
| Mariko Yasuda, M.D. | Dermatology | Worcester, MA |
| Karim Yatim, M.D. | Internal Medicine | Boston, MA |
| Wai-Ying W Yau, MD | Neurology | Boston, MA |
| Nirupama Yechoor, M.D. | Neurology | Boston, MA |
| Andrew J Yee, M.D. | Medical Oncology | Boston, MA |
| Doreen D Yeh, MD | Adult Congenital Heart Disease | Boston, MA |
| Heidi Yeh, MD | General Surgery | Boston, MA |
| James S Yeh, M.D. | Internal Medicine | Boston, MA |
| Sunu S Yeh, MD | Internal Medicine | Boston, MA |
| Oladapo O Yeku, M.D, PHD | Medical Oncology | Boston, MA |
| Armen I Yerevanian, M.D | Endocrinology | Boston, MA |
| Albert S Yeung, MD | Psychiatry | Boston, MA |
| Erika T Yih, MD | Pain Management | Boston, MA |
| Ruochen Ying, MD | Internal Medicine | Boston, MA |
| Janeth M Yinh, M.D. | Rheumatology | Boston, MA |
| Torunn Yock, MD | Radiation Oncology | Boston, MA |
| Chio Yokose, M.D. | Rheumatology | Boston, MA |
| Jaden J Yoo, PA-C | Physician Assistant | Boston, MA |
| Carey M York Best, MD | Obstetrics & Gynecology | Waltham, MA |
| Dayna Yorks, DO | Physical Medicine and Rehabilitation | Charlestown, MA |
| Michael J Young, MD | Neurology | Boston, MA |
| Michelle Young, PA-C | Physician Assistant | Boston, MA |
| Robert H Young, MD | Pathology | Boston, MA |
| Sheila M Young, ARNP | Nurse Practitioner | Salem, NH |
| Nyera Youssef, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Cindy Yu, M.D. | Hospitalist | Boston, MA |
| Elaine W Yu, M.D. | Endocrinology | Boston, MA |
| Heishun Yu, M.D. | Diagnostic Radiology | Phoenix, AZ |
| Minjia Yu | Hospitalist | Cambridge, MA |
| Paul B Yu, MD PHD | Cardiology | Boston, MA |
| Yiming Yu, PA | Physician Assistant | Waltham, MA |
| Evin Yucel, M.D | Cardiology | Boston, MA |
| Justin M Yunes, NP | Nurse Practitioner | Boston, MA |
| Rushdia Z Yusuf, M.D. | Hematology-Oncology | Boston, MA |
| Nikolaos Zacharias, M.D. | Vascular Surgery | Lebanon, NH |
| Kimon C Zachary, MD | Infectious Disease | Boston, MA |
| Korilyn S Zachrison, M.D., M.SC. | Emergency Medicine | Boston, MA |
| Sahar F Zafar, MD | Neurology | Boston, MA |
| Ryan Zahalka | Emergency Medicine | Boston, MA |
| Bita Zahedi, M.D. | Endocrinology | Boston, MA |
| Kellen Zakula | Physician Assistant | Jamaica Plain, MA |
| Michael E Zalis, MD | Diagnostic Radiology | Boston, MA |
| Richard L Zaniewski, D.O. | Physical Medicine and Rehabilitation | Salem, MA |
| Lisa Zappala | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Luca Zazzeron, MD | Anesthesiology | Boston, MA |
| Jonathan P Zebrowski, MD | Psychiatry | Boston, MA |
| Steven M Zeitels, MD | Otolaryngology | Boston, MA |
| Merissa N Zeman, MD | Diagnostic Radiology | Washington, DC |
| Gerasimos D Zervos, MD | Cardiology | Boston, MA |
| Mingjuan L Zhang, MD | Pathology | Boston, MA |
| Wei Zhang, MD. PHD | Gastroenterology | Boston, MA |
| Xiangwei Zhang, MD MS | Anesthesiology | Boston, MA |
| Yi Zhang, MD, PHD | Anesthesiology | Boston, MA |
| Lillian L Zhao, MD | Internal Medicine | Boston, MA |
| Meijuan Zhao, MD | Physical Medicine and Rehabilitation | Boston, MA |
| Sara E Zhao, M.D. | Interventional Radiology | Boston, MA |
| James Zhou, MD | Internal Medicine | Boston, MA |
| Jeffrey Zhu, PA-C | Physician Assistant | Boston, MA |
| David R Ziehr, MD | Internal Medicine | Boston, MA |
| Emily S Ziemba | Nurse Practitioner | Lebanon, NH |
| Joshua C Ziperstein, MD | Hospitalist | Boston, MA |
| Daniel A Zlotoff, M.D. | Internal Medicine | Boston, MA |
| Olivia S Zurek, M.D. | Psychiatry | Providence, RI |
| Omar Zurkiya, M.D., PH.D. | Diagnostic Radiology | Boston, MA |
| Randall M Zusman, MD | Cardiology | Boston, MA |
Practice locations
Listed practice locations in Arkansas, California, Connecticut, District of Columbia, Florida, Georgia, Illinois, Massachusetts, Maryland, Michigan, Missouri, New Hampshire, Texas, Washington.
Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.
Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations