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; 1,101–1,200 of 2,771.
| Name | Specialty | City |
|---|---|---|
| Ross U Icyda, D.M.D. | Oral Surgery (Dentist only) | Boston, MA |
| Giovanna Ignacio Subira Medina, MD, PHD | Orthopedic Surgery | Boston, MA |
| Annette Ilg, M.D. | Emergency Medicine | Boston, MA |
| Othon Iliopoulos, MD | Medical Oncology | Boston, MA |
| Dana Im, MD | Emergency Medicine | Boston, MA |
| Moises A Inestroza, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Beverly, MA |
| Ignacio Inglessis-Azuaje, MD | Cardiology | Boston, MA |
| Shams I Iqbal, MD | Diagnostic Radiology | Burlington, MA |
| Sohah N Iqbal, MD | Cardiology | Salem, MA |
| Zubin D Irani, MD | Interventional Radiology | Springfield, MA |
| Zacharia Isaac, MD | Physical Medicine and Rehabilitation | Boston, MA |
| Steven J Isakoff, MD PHD | Medical Oncology | Boston, MA |
| Rachel Z Ishikawa, PH.D. | Psychologist, Clinical | Boston, MA |
| Yumiko Ishizawa, MD PHD MPH | Anesthesiology | Boston, MA |
| Sabina A Islam, MD | Infectious Disease | Boston, MA |
| Catherine Isroff, MD | Neurology | Boston, MA |
| Eric M Isselbacher, MD | Cardiology | Boston, MA |
| Ana Ivkovic, M.D. | Psychiatry | Boston, MA |
| Reem Jabr, MA RD LDN | Registered Dietitian or Nutrition Professional | Waltham, MA |
| Jamie S Jackling, PA | Physician Assistant | Danvers, MA |
| James Jackson, M.D. | Family Practice | Boston, MA |
| Claire S Jacobs, MD, PHD | Neurology | Boston, MA |
| Juliet C Jacobsen, MD DPHI | Hospice and Palliative Care | Boston, MA |
| Lorraine K Jacobsohn, RN-PCNS | Certified Clinical Nurse Specialist | Boston, MA |
| Brian C Jacobson, MD, MPH | Gastroenterology | Boston, MA |
| Farouc A Jaffer, MD PHD | Cardiology | Boston, MA |
| Camilo E Jaimes Cobos, M.D. | Diagnostic Radiology | Boston, MA |
| Felipe A Jain, M.D. | Psychiatry | Boston, MA |
| Salvia S Jain, MD | Hematology-Oncology | Boston, MA |
| Kunal Jajoo, M.D. | Gastroenterology | Boston, MA |
| Marla Jalbut, MD | Internal Medicine | Boston, MA |
| Aisha K James, MD | Internal Medicine | Boston, MA |
| Max Jan, MD | Pathology | Boston, MA |
| Sandya Janardhan, MSN, PMHNP-BC | Nurse Practitioner | Chicago, IL |
| Ik-Kyung Jang, MD PHD | Interventional Cardiology | Boston, MA |
| James L Januzzi, MD | Cardiology | Boston, MA |
| Tinevimbo Jaravaza, MD | Internal Medicine | Worcester, MA |
| Elena R Jardine, PA-C | Physician Assistant | Boston, MA |
| Johnny S Jarnagin, MD | Physical Medicine and Rehabilitation | Boston, MA |
| Mohamed Jarraya, MD | Diagnostic Radiology | Boston, MA |
| Arminder S Jassar, MD | Cardiac Surgery | Philadelphia, PA |
| Catherine F Jerman, MD | Anesthesiology | San Jose, CA |
| Michael C Jernigan, M.D. | Hospitalist | North Quincy, MA |
| Anushya Jeyabalan, M.D. | Nephrology | Boston, MA |
| Khushboo Jhala, M.D. | Diagnostic Radiology | Philadelphia, PA |
| Yongli Ji, M.D. , PH.D. | Hematology-Oncology | Boston, MA |
| Debbie C Jiang, MD | Internal Medicine | Boston, MA |
| Hongzhen Jiang, NP | Nurse Practitioner | Brighton, MA |
| Victoria F Jiang, MD | Internal Medicine | Boston, MA |
| Rachel Jimenez, M.D. | Radiation Oncology | Boston, MA |
| Sydney E Jimenez, M.D. | Addiction Medicine | Revere, MA |
| Ping Jin, M.D. | Anesthesiology | Boston, MA |
| Pichamol Jirapinyo, MD | Gastroenterology | New Haven, CT |
| Patrick C Johnson, MD | Medical Oncology | Boston, MA |
| Tracy R Jonassaint, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Eric P Jones, MD | Diagnostic Radiology | Portsmouth, VA |
| Lori Jones, MD | Urology | Boston, MA |
| Pamela S Jones, MD | Neurosurgery | La Jolla, CA |
| Patricia A Jordano, NP | Nurse Practitioner | Boston, MA |
| April M Jorge, M.D. | Rheumatology | Boston, MA |
| Elisa M Jorgensen, M.D. | Obstetrics & Gynecology | Boston, MA |
| Gagan Joshi, MD | Psychiatry | Boston, MA |
| Lana A Joudeh, MD | Anesthesiology | Boston, MA |
| Sara E Joyce, NP | Nurse Practitioner | Boston, MA |
| Andrew L Judelson, MD | Physical Medicine and Rehabilitation | East Sandwich, MA |
| Boris D Juelg, MD, PHD | Infectious Disease | Boston, MA |
| Amy F Juliano, MD | Diagnostic Radiology | Boston, MA |
| Dejan Juric, M.D. | Medical Oncology | Boston, MA |
| Marc J Jutras, MD | Diagnostic Radiology | Boston, MA |
| Haytham M Kaafarani, M.D., M.P.H. | General Surgery | Brookline, MA |
| Christopher Kabrhel, MD | Emergency Medicine | Boston, MA |
| Kristopher T Kahle, M.D., PH.D. | Neurosurgery | Hartford, CT |
| Jennifer L Kaina, NP | Nurse Practitioner | Pleasanton, CA |
| Bashar Kako | Diagnostic Radiology | Boston, MA |
| Margaret H Kala | Internal Medicine | Boston, MA |
| Sahir Kalim | Nephrology | Boston, MA |
| Mannudeep K Kalra, MD | Diagnostic Radiology | Boston, MA |
| Masoud Kamali, MD | Psychiatry | Boston, MA |
| Shahmir Kamalian | Diagnostic Radiology | Boston, MA |
| Avinash Kambadakone-Ramesh, MBBS | Diagnostic Radiology | Boston, MA |
| Brinda B Kamdar, MD | Anesthesiology | Boston, MA |
| Mihir M Kamdar, MD | Hospice and Palliative Care | Boston, MA |
| Sophia C Kamran, M.D. | Radiation Oncology | Boston, MA |
| Sarah Kanbour, M.D. | Endocrinology | Boston, MA |
| Khadidjatou Kane, MD | Internal Medicine | Chicago, IL |
| Lucy H Kapur, MD | Pathology | Dover, NH |
| Monica Karlen | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Rebecca S Karp, M.D. | Hematology-Oncology | Boston, MA |
| Roozbeh Kashefi, D.M.D. | Oral Surgery (Dentist only) | Cambridge, MA |
| Gerald I Kassels, M.D. | Hospitalist | Boston, MA |
| Bruce R Kastin, M.D. | Neurology | Boston, MA |
| William V Kastrinakis, MD | General Surgery | Danvers, MA |
| Guy Katz, M.D. | Rheumatology | Boston, MA |
| Mira Kautzky, M.D. | Internal Medicine | Boston, MA |
| April K Kavanagh, M.D. | Family Practice | Waltham, MA |
| Alison R Kavanaugh, ACNP-BC | Nurse Practitioner | Boston, MA |
| Tatsuo Kawai, MD PHD | General Surgery | Boston, MA |
| Christina D Kay, PHD | Psychologist, Clinical | Boston, MA |
| Florence K Keane, MD | Radiation Oncology | Boston, MA |
| Christopher J Keary, M.D. | Psychiatry | 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