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; 901–1,000 of 2,771.
| Name | Specialty | City |
|---|---|---|
| Jeffrey L Greenwald, M.D. | Hospitalist | Boston, MA |
| Jonathan B Greer, M.D. | Surgical Oncology | Boston, MA |
| Michael G Gregory, MD | Internal Medicine | Brookline, MA |
| Kerry B Grennan, NP | Nurse Practitioner | East Boston, MA |
| Marissa Griecci, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Harry R Griffin, MD | Diagnostic Radiology | Boston, MA |
| Jason Griffith, M.D. | Critical Care (Intensivists) | Boston, MA |
| Sara E Grosslein, PA | Physician Assistant | Boston, MA |
| Mila N Grossman | Psychiatry | Boston, MA |
| John H Growdon, MD | Neurology | Boston, MA |
| Marion L Growney, MSN ACNP | Nurse Practitioner | Boston, MA |
| Racine Gue, M.D. | Diagnostic Radiology | Boston, MA |
| Gabrielle Guenther, PA-C | Physician Assistant | Fairfield, CT |
| Roxanne Guerriero, ANP | Nurse Practitioner | Boston, MA |
| Anthony J Guidi, M.D. | Pathology | Salem, MA |
| Amanda C Guidon, MD | Neurology | Boston, MA |
| Claudia C Guillen, RN, CNP | Nurse Practitioner | Chelsea, MA |
| Alexandra I Gundersen, MD | Physical Medicine and Rehabilitation | Providence, RI |
| Kristen H Gunning, M.D. | Internal Medicine | Boston, MA |
| Anoopum S Gupta, M.D., PH.D. | Neurology | Pittsburgh, PA |
| Priya S Gupta, M.D. | Internal Medicine | Pawtucket, RI |
| Raavi Gupta, M.D. | Pathology | Brooklyn, NY |
| Rajiv Gupta, MD PHD | Diagnostic Radiology | Boston, MA |
| Mahmut E Gurol, M.D. | Neurology | Boston, MA |
| James S Guseh, MD | Cardiology | Boston, MA |
| Daniel Guss, M.D. | Orthopedic Surgery | Boston, MA |
| Joseph P Gustin, PMHNP-BC | Nurse Practitioner | Boston, MA |
| Monica Gustin, ACNPC-AG | Nurse Practitioner | Boston, MA |
| Evan W Gwyn, M.D. | Internal Medicine | Boston, MA |
| Jessica E Haberer, M.D. | Internal Medicine | San Francisco, CA |
| Denise A Hache, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Burlington, MA |
| Peter N Hadar, MD, MS | Neurology | Boston, MA |
| Shirin Haddady, M.D. | Endocrinology | Boston, MA |
| Muhamed Hadzipasic, MD,PHD | Neurosurgery | Boston, MA |
| Christopher R Haffenreffer, PA-C | Physician Assistant | Boston, MA |
| Erin E Haggerty, M.D. | Anesthesiology | Boston, MA |
| Stephan Hain, MD | Anesthesiology | Boston, MA |
| Melanie S Haines, MD | Endocrinology | Boston, MA |
| Jeffrey Hajibandeh, DDS | Oral Surgery (Dentist only) | Boston, MA |
| Robert W Hallowell, M.D. | Critical Care (Intensivists) | Boston, MA |
| Noha Hamada, MD | Family Practice | Boston, MA |
| Sarah P Hammond, MD | Infectious Disease | Boston, MA |
| Harry J Han, M.D. | Hospice and Palliative Care | Boston, MA |
| Marie Grace Han, FNP-C | Nurse Practitioner | Somerville, MA |
| Shruti Handa | Oral Surgery (Dentist only) | Boston, MA |
| Dusan Hanidziar, M.D., PH.D. | Anesthesiology | Boston, MA |
| Kathryn S Hanley, M.D. | Geriatric Medicine | Boston, MA |
| Christopher J Hansen, D.O | Anesthesiology | Boston, MA |
| Katherine M Hantke | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| David Hao, MD | Anesthesiology | Boston, MA |
| Charles C Hardin, M.D.,PH.D | Pulmonary Disease | Boston, MA |
| Lida P Hariri, MD, PHD | Pathology | Boston, MA |
| Mukesh G Harisinghani, MD | Diagnostic Radiology | Boston, MA |
| Christine M Harrington, M.D. | Obstetrics & Gynecology | Philadelphia, PA |
| Colleen Harrington, M.D. | Cardiology | Worcester, MA |
| Nichole R Harrington | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Noreen R Harrington, PHD | Psychologist, Clinical | Boston, MA |
| Samantha Harrington | Diagnostic Radiology | Boston, MA |
| Andrea Harriott, MD | Neurology | Boston, MA |
| Danielle R Harris, AGACNP-BC | Nurse Practitioner | Boston, MA |
| Katharyn M Harris, N.P. | Nurse Practitioner | Boston, MA |
| Mitchel B Harris, MD | Orthopedic Surgery | Boston, MA |
| Norman S Harris, MD | Emergency Medicine | Boston, MA |
| Jon M Harrison, MD | General Surgery | Boston, MA |
| George K Harrold, MD | Neurology | Boston, MA |
| Kohei Hasegawa, M.D. | Emergency Medicine | Boston, MA |
| Nikroo Hashemi, MD, MPH | Gastroenterology | Boston, MA |
| Robert P Hasserjian, MD | Pathology | Boston, MA |
| Aaron Hata, MD, PHD | Medical Oncology | Boston, MA |
| Alexandra M Haugh | Hematology-Oncology | Boston, MA |
| Jonathan S Hausmann, MD | Rheumatology | Boston, MA |
| Elena B Hawryluk, M.D., PH.D. | Dermatology | Boston, MA |
| Emily M Hayden, M.D. | Emergency Medicine | Boston, MA |
| Julie Erika Haydu, M.D., PH.D. | Hematology-Oncology | Boston, MA |
| Annmarie Hayes, RN-C, NP | Nurse Practitioner | Randolph, MA |
| Catherine Hayes, NP | Nurse Practitioner | Worcester, MA |
| Frances J Hayes, MD | Endocrinology | Boston, MA |
| Megan K Hayes, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Brandon R Hayse | Internal Medicine | Boston, MA |
| Sean M Hazzard, P.A.-C | Physician Assistant | New York, NY |
| Shuhan He, M.D. | Emergency Medicine | Boston, MA |
| Lisa Hebenstreit, FNP-C, RN, ATC | Nurse Practitioner | Boston, MA |
| Jason A Hebert | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Peter S Hedberg, MD | General Surgery | Dover, NH |
| Sandeep Hedgire, MD | Diagnostic Radiology | Boston, MA |
| Jonathan W Heflin, MD, MPH | Hospitalist | Boston, MA |
| Jaye E Hefner, MD | Internal Medicine | Boston, MA |
| Pedram Heidari, M.D. | Diagnostic Radiology | Boston, MA |
| Edwin K Heist, MD PHD | Clinical Cardiac Electrophysiology | Boston, MA |
| Rebecca S Heist, MD MPH | Hematology-Oncology | Boston, MA |
| Nicola L Hempel, ACNP-BC | Nurse Practitioner | Boulder, CO |
| Teresa R Henderson, NURSE PRACTITIONER | Nurse Practitioner | Belmont, MA |
| Luis M Henkel, M.D. | Internal Medicine | Somerville, MA |
| Mia D Henner, PA-C | Physician Assistant | Concord, MA |
| Susan A Hennessey-Power, FNP-BC | Nurse Practitioner | Boston, MA |
| Jane Henoch, NP | Nurse Practitioner | Niskayuna, NY |
| Michael Henry, MD | Psychiatry | Brighton, MA |
| Adam S Hensley, M.D. | General Surgery | Boston, MA |
| Yasmin G Hernandez-Barco, MD | Gastroenterology | Boston, MA |
| Nancy Hernandez Heyne, M.D. | Pediatric Medicine | 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