Internal Medicine Doctors in Massachusetts
Data updated monthly · Last refresh October 2026
6,796 Internal Medicine providers practice in Massachusetts, including 1,960 (29%) offering telehealth. The largest concentration is in Boston. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
6,796providers
1,960telehealth
Bostontop city
Internal Medicine by city in Massachusetts
Choose a city to see providers there.
Internal Medicine providers in Massachusetts
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Caleb Hale, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 667-9600 Dr. Calvin Cohen, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 421-5804 Dr. Calvin Ludwig, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 636-5000 Dr. Cameron Blazoski, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 724-3874 Dr. Camilo Toro, MDBoston, MA · No drug or device payments recorded (2025) ·
(174) 145-9516 Dr. Cammie Lesser, MD PHDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-3812 Dr. Camryn ZuchBoston, MA · No drug or device payments recorded (2025) ·
(617) 638-8000 Dr. Cara Mclaughlin Gavin, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 312-3664 Dr. Cara Sweeney, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 667-7000 Dr. Carina Spencer, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 726-2865 Dr. Carla Oberst, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 654-7000 Dr. Carl Dettman, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(857) 364-4418 Dr. Carl MalmBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 726-2000 Dr. Carlos Camargo, MDBoston, MA · $5,713 in drug and device payments (2025) ·
(617) 726-5276 Dr. Carlos Espiche Salazar, MD Dr. Carl Streed, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 414-5951 Dr. Carly Taylor, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 414-7399 Dr. Carmen Vesbianu, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 732-5500 Dr. Carmine Ballarano, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 732-5500 Dr. Carol Bates, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 667-9600 Dr. Carol Ehrlich, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 724-8400 Dr. Carolina Abuelo, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 425-2000 Dr. Carolina Geadas, M.D.Boston, MA · $121 in drug and device payments (2025) · Telehealth ·
(617) 414-5951 Dr. Caroline Apovian, M.D.Boston, MA · $17,022 in drug and device payments (2025) · Telehealth ·
(617) 525-3597 Dr. Caroline Birks, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 724-6610 Dr. Caroline Johnson, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 414-5951 Dr. Caroline Mccarthy, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 636-5000 Dr. Caroline Meehan, MDBoston, MA · No drug or device payments recorded (2025) ·
(401) 444-4247 Dr. Caroline Yang, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 278-0055 Dr. Carol Waldmann, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 414-5951 Dr. Carolyn Treasure, MDBoston, MA · $1,788 in drug and device payments (2025) ·
(617) 732-5500 Dr. Carol Zuckerman, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 421-5804 Dr. Carrie Morgenstein, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 632-8266 Dr. Carrie Siracuse, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 638-7480 Dr. Catherine Buettner, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 643-8000 Dr. Catherine Ho, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 636-5000 Dr. Catherine HwangBoston, MA · No drug or device payments recorded (2025) ·
(617) 732-6040 Dr. Catherine Lau, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 667-9600 Dr. Catherine Parker, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 632-8268 Dr. Catherine Pierce, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(857) 654-1000 Dr. Catherine Rahilly, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(857) 364-4201 Dr. Catherine Rich, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 414-5951 Dr. Catherine Yu, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 643-8000 Dr. Cecelia Bender, DOBoston, MA · No drug or device payments recorded (2025) ·
(617) 724-3874 Dr. Cecilia Sarkissian, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 732-5500 Dr. Chadi Cortas, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 278-0055 Dr. Chad SussmanBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-2000 Dr. Chana Sacks, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 724-4600 Dr. Chantal Barksdale, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-5820 Conditions Internal Medicine providers in Massachusetts commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are in Massachusetts?There are 6,796 Internal Medicine providers with active NPI records practicing in Massachusetts, according to federal NPPES data refreshed monthly.
Do Internal Medicine providers in Massachusetts offer telehealth?Yes. 1,960 of the 6,796 Internal Medicine providers in Massachusetts (about 29%) report offering telehealth services in CMS data.
Which cities in Massachusetts have the most Internal Medicine providers?Boston (2,322), Worcester (443), Cambridge (299) have the highest concentration of Internal Medicine providers in Massachusetts.
How many Internal Medicine providers in Massachusetts received drug or device company payments?1,344 of 6,796 Internal Medicine providers in Massachusetts (20%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Internal Medicine providers in Massachusetts treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Internal Medicine Doctors in Massachusetts work in independent practices or large health systems?Among 3,721 Internal Medicine Doctors in Massachusetts enrolled in Medicare, 10% bill through a solo or small practice with fewer than 10 clinicians, 11% through a mid-size group of 10 to 99, and 79% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Internal Medicine Doctors in Massachusetts work at?According to CMS facility affiliation records, the Massachusetts hospitals where the most Internal Medicine Doctors hold privileges are Brigham and Women's Hospital in Boston; Massachusetts General Hospital in Boston; Beth Israel Deaconess Medical Center in Boston.
Related reading on HealthcareDiscovery.AI
Internal Medicine in all 50 states Search all 6,796 in the directory Ask Zach for help choosing
Related
