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; 2,101–2,200 of 2,771.
| Name | Specialty | City |
|---|---|---|
| Julie A Ruane, NP | Nurse Practitioner | Boston, MA |
| Daniel B Rubin, M.D. | Neurology | Boston, MA |
| Emily B Rubin, MD, JD | Pulmonary Disease | Boston, MA |
| Jonah Rubin, MD | Pulmonary Disease | Boston, MA |
| Marc S Rubin, MD | General Surgery | Danvers, MA |
| Jacqueline A Ruckel, NP | Nurse Practitioner | Boston, MA |
| Juan P Ruiz, MD | Internal Medicine | Boston, MA |
| Christopher Runey, N.P. | Nurse Practitioner | Boston, MA |
| Katarina Ruscic, M.D. | Anesthesiology | Boston, MA |
| Jeremy N Ruskin, MD | Clinical Cardiac Electrophysiology | Boston, MA |
| Christopher W Russell, M.D. | Emergency Medicine | Boston, MA |
| Matthew L Russell, M.D. | Hospice and Palliative Care | Roslindale, MA |
| Steven J Russell, MD PHD | Endocrinology | Boston, MA |
| Andrea L Russo, M.D. | Radiation Oncology | Newton, MA |
| Anna E Rutherford, MD, MPH | Gastroenterology | Boston, MA |
| Edward T Ryan, MD | Infectious Disease | Boston, MA |
| Marvin Ryou, M.D. | Gastroenterology | Boston, MA |
| Altaf Saadi, MD | Neurology | Boston, MA |
| Marc Sabatine, MD | Cardiology | Boston, MA |
| Nari Sabeti, MD | General Surgery | North Chelmsford, MA |
| Abdolnabi S Sabouri, M.D. | Anesthesiology | Boston, MA |
| Uma M Sachdeva, MD, PHD | Thoracic Surgery | Boston, MA |
| Jordan S Sack, MD, MPH | Gastroenterology | Boston, MA |
| Richard Sacknoff, MD | Diagnostic Radiology | Boston, MA |
| Chana A Sacks, MD | Hospitalist | Boston, MA |
| Daniel Saddawi-Konefka | Anesthesiology | Ypsilanti, MI |
| Peter M Sadow, M.D., PH.D. | Pathology | Boston, MA |
| Kassem Safa, M.D | Nephrology | Boston, MA |
| Bijan Safaee Fakhr, MD | Anesthesiology | Monza, ZZ |
| Kyan C Safavi, M.D. | Anesthesiology | Boston, MA |
| Rebecca R Saff, MD, PHD | Allergy/ Immunology | Boston, MA |
| Ilyas Sahin | Hematology-Oncology | Boston, MA |
| Sanjay Saini, MD | Diagnostic Radiology | Boston, MA |
| Nestor A Sainz Rueda, MD | Family Practice | Boston, MA |
| Heather Saitta, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Osamu Sakai, M.D. | Diagnostic Radiology | Boston, MA |
| Takashi Sakano, M.D., PHARM.D. | Anesthesiology | Boston, MA |
| Rahul Sakhuja, MD | Cardiology | Kingsport, TN |
| Katherine A Sakmar, MD | Internal Medicine | Revere, MA |
| Mansi A Saksena, MD | Diagnostic Radiology | Boston, MA |
| Keyan Salari, M.D., PH.D. | Urology | Boston, MA |
| Ingrid P Salciccioli, MBBS, MPH | Allergy/ Immunology | Boston, MA |
| Daniel G Saldana, PHD | Psychologist, Clinical | Boston, MA |
| Saira Saleem | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Asma Salem, DO | Internal Medicine | Boston, MA |
| Rama A Salhi, MD | Emergency Medicine | Boston, MA |
| Jonathan R Salik, MD, MHPED | Internal Medicine | Boston, MA |
| Walter F Sall, MD | Radiation Oncology | Peabody, MA |
| Catherine A Saltalamacchia, NP | Nurse Practitioner | Boston, MA |
| Ami L Salwierz, APRN-BC | Nurse Practitioner | Boston, MA |
| Danielle L Saly, M.D. | Nephrology | Boston, MA |
| Amanda P Samarasinghe, PA-C | Physician Assistant | Boston, MA |
| Micker Samios, NP | Nurse Practitioner | Boston, MA |
| Anthony E Samir, MD | Diagnostic Radiology | Boston, MA |
| Hemal N Sampat, M.D. | Internal Medicine | Boston, MA |
| Melissa Sampson, PA | Physician Assistant | Arlington, MA |
| Margaret E Samuels-Kalow, MD | Emergency Medicine | Philadelphia, PA |
| Danita Y Sanborn, MD | Cardiology | Boston, MA |
| Jason P Sanchez, PA-C | Physician Assistant | Boston, MA |
| Jorge E Sanchez, MD, MPH | Hospitalist | Boston, MA |
| Peter I Santana, NP | Nurse Practitioner | Cambridge, MA |
| Stephanie L Santoro, M.D. | Pediatric Medicine | Boston, MA |
| Jamie Santos | Physician Assistant | Boston, MA |
| Jack Sarkisian | Physician Assistant | Boston, MA |
| Amy A Sarma, M.D. | Cardiology | Boston, MA |
| Danielle L Sarno, M.D. | Physical Medicine and Rehabilitation | Boston, MA |
| Kai Saukkonen, M.D. | Pulmonary Disease | Boston, MA |
| Erin M Savage, RN | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Tess A Savas | Nurse Practitioner | Boston, MA |
| Krystal W Savice, DO | Internal Medicine | Boston, MA |
| Lieba Savitt, NP | Nurse Practitioner | Cambridge, MA |
| Darlene E Sawicki, MSN, NP | Nurse Practitioner | Boston, MA |
| Kate Sawyer, NP | Nurse Practitioner | Boston, MA |
| Lindsey M Sayers, NP | Nurse Practitioner | Boston, MA |
| Meredith L Saylor, N.P. | Nurse Practitioner | Boston, MA |
| Philip J Saylor, M.D. | Hematology-Oncology | Boston, MA |
| Jennifer L Scalia, NP | Nurse Practitioner | Boston, MA |
| John A Scaringi, MD | Diagnostic Radiology | Boston, MA |
| Esperance A Schaefer, M.D., ,M.P.H. | Gastroenterology | Boston, MA |
| Pamela W Schaefer, MD | Diagnostic Radiology | Boston, MA |
| Robert M Schainfeld, DO | Cardiology | Waltham, MA |
| Meaghan Schappler, PA-C | Physician Assistant | Boston, MA |
| Jeremiah M Scharf, MD PHD | Neurology | Boston, MA |
| Isaac Schiff, MD | Obstetrics & Gynecology | Boston, MA |
| Robert L Schiffman, MD | Pulmonary Disease | Cambridge, MA |
| Robin J Schiller, M.D., D.M.D. | Anesthesiology | Boston, MA |
| Jeremy Schmahmann, MD | Neurology | Boston, MA |
| Eric Schmidt, M.D. | Critical Care (Intensivists) | Boston, MA |
| Jeffrey C Schneider, MD | Physical Medicine and Rehabilitation | Boston, MA |
| Paul Schneider, PA-C | Physician Assistant | Boston, MA |
| Amy B Schoenbaum, MD | Internal Medicine | Boston, MA |
| Sara R Schoenfeld, M.D. | Rheumatology | Boston, MA |
| Brian J Schulman, M.D. | Psychiatry | Boston, MA |
| John T Schulz, M.D. | General Surgery | Boston, MA |
| Elizabeth Schwamb | Licensed Clinical Social Worker | West Roxbury, MA |
| Joanna E Schwartz, M.D. | Internal Medicine | Waltham, MA |
| Jonathon H Schwartz, MD | Nephrology | Cambridge, MA |
| Stefani M Schwartz | Anesthesiology | Boston, MA |
| Michael A Schwarzschild, MD PHD | Neurology | Boston, MA |
| Jeffrey S Schweitzer, MD | Neurosurgery | 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