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; 1–100 of 2,771.
| Name | Specialty | City |
|---|---|---|
| Emily L Aaronson, M.D. | Emergency Medicine | Boston, MA |
| Matthew Abadir | Anesthesiology | Boston, MA |
| Lauren C Abbate, MD | Internal Medicine | Boston, MA |
| Brian P Abbott, PA | Physician Assistant | Boston, MA |
| Gerald F Abbott, MD | Diagnostic Radiology | Boston, MA |
| Shadi Abdar Esfahani, MD, MPH | Diagnostic Radiology | Boston, MA |
| Sama E Abdul-Aziz, DMD | Oral Surgery (Dentist only) | Boston, MA |
| Rachel O Abelman, MD | Hematology-Oncology | Boston, MA |
| Diane R Abraczinskas, MD | Gastroenterology | Boston, MA |
| Stephen A Abraham, M.D. | Cardiology | Boston, MA |
| Jeremy S Abramson, MD | Hematology | Boston, MA |
| Inas Abuali, M.D. | Hematology-Oncology | Boston, MA |
| Carolina E Abuelo, M.D. | Internal Medicine | Boston, MA |
| Gregory A Acampora, M.D. | Psychiatry | Boston, MA |
| John J Accarino, MD | Allergy/ Immunology | Boston, MA |
| Bijay Acharya, MD | Hospitalist | Baltimore, MD |
| Sophie Achilles, PA-C | Physician Assistant | Boston, MA |
| Jeanne B Ackman, M.D. | Diagnostic Radiology | Boston, MA |
| Caitlin Adams, M.D. | Psychiatry | Boston, MA |
| Ryan Adams, M.D. | Diagnostic Radiology | Boston, MA |
| Miranda R Adelmann, MD | Internal Medicine | Boston, MA |
| Josna Adusumilli, MD | Neurology | Worcester, MA |
| Maxwell Afari, MD | Cardiology | Scarborough, ME |
| Daniela Aguilera Bremer, MD | Nurse Practitioner | Boston, MA |
| Aaron D Aguirre, M.D., PH.D. | Cardiology | Boston, MA |
| Marwa A Ahmed, MD | Physical Medicine and Rehabilitation | Brighton, MA |
| Shihab Ahmed, MBBS | Interventional Pain Management | Boston, MA |
| Michelle Ahn | Hospitalist | Boston, MA |
| Aimalohi A Ahonkhai, MD | Infectious Disease | Nashville, TN |
| Titilayo O Alabi, M.D. | Family Practice | Waltham, MA |
| Claude I Alabre, M.D. | Internal Medicine | Boston, MA |
| Awais Alam, M.D. | Internal Medicine | Salem, MA |
| George A Alba, MD | Pulmonary Disease | Boston, MA |
| Mark W Albers, MD PHD | Neurology | Boston, MA |
| John S Albin, MD, PHD | Infectious Disease | Boston, MA |
| Katherine H Albutt, MD, MPH | General Surgery | Boston, MA |
| Richard E Alexander, MD | Hospitalist | Boston, MA |
| Corinne Alexander Cole | Hospice and Palliative Care | Boston, MA |
| Paul H Alfille, MD | Anesthesiology | Boston, MA |
| Pamela S Ali, M.D. | Internal Medicine | Boston, MA |
| Nour Al Jalbout, MD | Emergency Medicine | Boston, MA |
| Ayman Al Jurdi, M.D. | Nephrology | Boston, MA |
| Tarik K Alkasab, M.D., PH.D. | Diagnostic Radiology | Newton, MA |
| Jehan W Alladina, MD | Pulmonary Disease | Boston, MA |
| James S Allan, MD | Thoracic Surgery | Boston, MA |
| Andrew S Allegretti, M.D. | Nephrology | Boston, MA |
| Christina Allen, CNP | Nurse Practitioner | Boston, MA |
| Jill N Allen, M.D. | Medical Oncology | Boston, MA |
| John S Allen, PH.D. | Psychologist, Clinical | East Sandwich, MA |
| Julia S Allen, NP | Nurse Practitioner | Boston, MA |
| Kathryn Allen, NP | Nurse Practitioner | Boston, MA |
| Margaret B Allison, MD,PHD | Critical Care (Intensivists) | Boston, MA |
| Maria Beatrice T Alora, MD | Dermatology | Boston, MA |
| Kyle Alpaugh, M.D. | Orthopedic Surgery | Boston, MA |
| Hanny T Al-Samkari, MD | Hematology-Oncology | Boston, MA |
| Bayan A Alzumaili, MD | Pathology | Boston, MA |
| Amgad M Amin, M.D | Orthopedic Surgery | Boston, MA |
| Adaugo Amobi, MD, MPH | Hospitalist | Boston, MA |
| Philip C Amrein, MD | Medical Oncology | Boston, MA |
| Thomas An, MD | Diagnostic Radiology | Boston, MA |
| Ashwin N Ananthakrishnan, M.D., M.P.H | Gastroenterology | Boston, MA |
| Christopher D Anderson, M.D. | Neurology | Boston, MA |
| Lillye P Anderson, MD | Anesthesiology | Boston, MA |
| Mark A Anderson, MD | Diagnostic Radiology | Boston, MA |
| Karin L Andersson, MD | Gastroenterology | Boston, MA |
| Allie C Andreski, PA | Physician Assistant | Boston, MA |
| Sean P Andrew, PA-C | Physician Assistant | Boston, MA |
| Arun Aneja, MD, PH.D. | Orthopedic Surgery | Boston, MA |
| Chika V Anekwe, MD, MPH | Preventive Medicine | Boston, MA |
| Tiffany A Angel, MD | Dermatology | Houston, TX |
| Peter O Ankomah, MD, PHD | Internal Medicine | Boston, MA |
| Erik Antonsen, M.D. | Emergency Medicine | Boston, MA |
| Adjoa Anyane-Yeboa | Gastroenterology | Boston, MA |
| Jennifer S Aparicio, M.D. | Medical Oncology | Boston, MA |
| Narisa Apichatibutra, MD | Anesthesiology | Boston, MA |
| Luke Apisa | Emergency Medicine | Boston, MA |
| Elisa Aquilanti | Medical Oncology | Boston, MA |
| Kevin Ard | Infectious Disease | Boston, MA |
| Ronald S Arellano, MD | Diagnostic Radiology | Boston, MA |
| Ana Belen Arevalo Molina, MD | Rheumatology | Boston, MA |
| Roger Arguello, MHS, PA-C | Physician Assistant | Boston, MA |
| M A Arnaout, MD | Nephrology | Charlestown, MA |
| Steven E Arnold, MD | Neurology | Philadelphia, PA |
| Michael E Aronoff, MD | Infectious Disease | Boston, MA |
| Isabel C Arrillaga-Romany, MD, PHD | Neurology | Boston, MA |
| Sheila Arvikar, M.D. | Rheumatology | Boston, MA |
| Laura Aseltine | Nurse Practitioner | Boston, MA |
| Peter D Asnis, MD | Sports Medicine | Boston, MA |
| Akwi W Asombang, M.D | Gastroenterology | Worcester, MA |
| Nazem Atassi, MD | Neurology | Boston, MA |
| Steven J Atlas, MD | Internal Medicine | Boston, MA |
| Hugh G Auchincloss, M.D. | Thoracic Surgery | Boston, MA |
| Alexis L Auger, NP | Nurse Practitioner | West Roxbury, MA |
| William G Austen, M.D. | Plastic and Reconstructive Surgery | Boston, MA |
| Laura L Avery, MD | Diagnostic Radiology | Boston, MA |
| Claire Avillach, MD | Pathology | Boston, MA |
| Mathew M Avram, MD | Dermatology | Boston, MA |
| Cenk Ayata, MD | Neurology | Boston, MA |
| Hadeal Ayoub, MD | Internal Medicine | Boston, MA |
| Bassem Ayyash, M.D. | Thoracic Surgery | 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