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; 1,801–1,900 of 2,771.
| Name | Specialty | City |
|---|---|---|
| Peter Olds, M.D. | Hospitalist | Boston, MA |
| Esther Oliva, MD | Pathology | Boston, MA |
| Paige O'Loughlin, PA-C | Physician Assistant | Boston, MA |
| Christine C Olsen, MD | Radiation Oncology | Newton, MA |
| Kristian R Olson, MD | Internal Medicine | Boston, MA |
| Hasena Omanovic, PMHNP-BC | Nurse Practitioner | Boston, MA |
| Tara A O'Meara, PHYSICIAN ASSISTANT | Physician Assistant | Newton, MA |
| Carina J O'Neill, D.O. | Physical Medicine and Rehabilitation | Braintree, MA |
| Oyere K Onuma, M.D. | Cardiology | Brockton, MA |
| Jennifer A Orcutt | Nurse Practitioner | Boston, MA |
| Musacide Z Ordulu Sahin, MD | Pathology | Boston, MA |
| Charlene M O'Reilly, NP | Nurse Practitioner | Boston, MA |
| Mary P Orencole, NP | Nurse Practitioner | Boston, MA |
| Nicolas M Oreskovic, M.D. | Internal Medicine | Boston, MA |
| Britlyn Orgill, M.D. | Anesthesiology | Boston, MA |
| Marcus V Ortega, MD | Obstetrics & Gynecology | Boston, MA |
| Vilma E Ortiz, MD | Anesthesiology | Boston, MA |
| Virginia W Osborn, M.D | Radiation Oncology | Exeter, NH |
| Michael T Osborne, MD | Cardiology | Boston, MA |
| Oluwatoyin Oshin | Nurse Practitioner | Boston, MA |
| Asishana A Osho, MD | Thoracic Surgery | Boston, MA |
| Stephen M Ostrowski | Dermatology | Cleveland, OH |
| Qi C Ott, MD | Anesthesiology | Salem, MA |
| Nadia Ounis-Skali, MD | Internal Medicine | Danvers, MA |
| Casey Owens | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Tolga Ozmen, M.D. | General Surgery | Boston, MA |
| Meredith M Pace, M.D. | Anesthesiology | Burlington, MA |
| Alison S Packard, MD | Obstetrics & Gynecology | Boston, MA |
| Sabrina Paganoni, MD, PHD | Physical Medicine and Rehabilitation | Charlestown, MA |
| Josephine E Pagliuca, DNP, AGNP-BC | Nurse Practitioner | Boston, MA |
| Igor F Palacios, MD | Interventional Cardiology | Boston, MA |
| Julie A Palafox, FNP-BC | Nurse Practitioner | Boston, MA |
| Sonali Palchaudhuri, M.D. | Gastroenterology | Philadelphia, PA |
| Nicholas P Palen, PHYSICIAN ASSISTANT | Physician Assistant | Boston, MA |
| William E Palmer, MD | Diagnostic Radiology | Boston, MA |
| Ragnar Palsson, M.D. | Nephrology | Boston, MA |
| Michelle L Palumbo, MD | Pediatric Medicine | Lexington, MA |
| Jonathan J Paly, D.O. | Radiation Oncology | Boston, MA |
| Rosemarie Paolini, NP | Nurse Practitioner | Brockton, MA |
| Haley S Papagni, PA-C | Physician Assistant | Boston, MA |
| Garyfallia Papaioannou, M.D. | Endocrinology | Boston, MA |
| George Papaliodis, M.D. | Internal Medicine | Boston, MA |
| Christina A Papastefan, AGACNP-BC | Nurse Practitioner | Chicago, IL |
| Petya T Papazova, NP | Nurse Practitioner | Boston, MA |
| Leon Pappas, MD, PHD | Internal Medicine | Boston, MA |
| Anushri Parakh, MBBS, MD | Diagnostic Radiology | Boston, MA |
| Charudutt N Paranjape, M.D. | General Surgery | Akron, OH |
| Molly L Paras, M.D. | Infectious Disease | Boston, MA |
| Jason Parente, PA-C | Physician Assistant | Boston, MA |
| Ameet H Parikh, M.D. | Cardiology | Seattle, WA |
| Aparna R Parikh, M.D. | Hematology-Oncology | Boston, MA |
| Jong Chul Park, M.D | Hematology-Oncology | Boston, MA |
| Ashley L Parker, M.D. | Obstetrics & Gynecology | Cherry Hill, NJ |
| Heather M Parker, NP | Nurse Practitioner | Boston, MA |
| Jonathan Parks, M.D. | General Surgery | Boston, MA |
| Gaurav Parmar, MD, MPH, FACC, FSVM | Cardiology | Fargo, ND |
| Joseph R Parseghian, PA-C | Physician Assistant | Boston, MA |
| Michael Parsons, PH.D. | Psychologist, Clinical | Cleveland, OH |
| Kaavya Paruchuri, M.D. | Cardiology | Boston, MA |
| Anshul B Parulkar, MD | Cardiology | Boston, MA |
| Sanchita Singal Parulkar, MD | Cardiology | Boston, MA |
| Omar Parvez, M.D. | Diagnostic Radiology | Boston, MA |
| Alisa Pascale, NP | Nurse Practitioner | Burlington, MA |
| Jennifer Pascual, M.D. | Emergency Medicine | Boston, MA |
| Marie E Pasinski, MD | Neurology | Charlestown, MA |
| Scott A Pasquale, NP | Nurse Practitioner | Boston, MA |
| Jonathan J Passeri, MD | Cardiology | Boston, MA |
| Mark S Pasternack, MD | Infectious Disease | Boston, MA |
| Elena Pasternak, PHD | Psychologist, Clinical | Boston, MA |
| Aman B Patel, M.D. | Neurosurgery | Boston, MA |
| Aniruddh P Patel, MD | Cardiology | Boston, MA |
| Chirayu G Patel, MD, MPH | Radiation Oncology | Boston, MA |
| Manisha J Patel, MD | Hematology-Oncology | Boston, MA |
| Naomi J Patel, MD | Rheumatology | Boston, MA |
| Nilay K Patel, MD | Cardiology | Boston, MA |
| Sahil Patel, MD | Pulmonary Disease | Boston, MA |
| Siddharth Patel, M.D. | Cardiology | Boston, MA |
| Sarah E Paterson | Nurse Practitioner | Boston, MA |
| Priyadarshini Pathak, M.D. | Hematology-Oncology | Boston, MA |
| Sarita U Patil, MD | Allergy/ Immunology | Boston, MA |
| Victoria B Patterson | Nurse Practitioner | Boston, MA |
| Richard Benjamin Patti, M.D. | Internal Medicine | Belmont, MA |
| Shreedhar Paudel, M.D., MPH | Psychiatry | Charlestown, MA |
| Aaron Paul, M.D. | Diagnostic Radiology | Boston, MA |
| Elahna Paul, MD PHD | Nephrology | Boston, MA |
| Taranveer K Pawar, M.D. | Internal Medicine | Cambridge, MA |
| Zachary S Peacock, M.D., D.M.D. | Maxillofacial Surgery | Boston, MA |
| David Peak, MD | Emergency Medicine | Boston, MA |
| Meghan E Pearly, PA-C | Physician Assistant | Boston, MA |
| Anne M Peeke, CRNA | Certified Registered Nurse Anesthetist (CRNA) | Boston, MA |
| Grace L Peloquin, MD | Critical Care (Intensivists) | Boston, MA |
| Daniel L Pelzman | Urology | Boston, MA |
| Jeremy Ryan A Pena, MD, PHD, MS | Pathology | Boston, MA |
| Ellen B Penney, M.D. | Neurology | Boston, MA |
| Richard T Penson, MD | Medical Oncology | Boston, MA |
| Jeffrey M Peppercorn, MD | Hematology-Oncology | Boston, MA |
| Debra C Pereira, NP | Nurse Practitioner | Boston, MA |
| David L Perez, M.D. | Neurology | Boston, MA |
| Raechel Perry | Nurse Practitioner | Boston, MA |
| Cory A Perugino, D.O. | Rheumatology | 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