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
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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. Jodi-ann Swaby, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(857) 247-6005 Dr. Jodie Babitt, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-5050 Dr. Joe Kimura, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 421-1000 Dr. Joell Bianchi, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 724-6700 Dr. Joel Neuschatz, M.DBoston, MA · No drug or device payments recorded (2025) ·
(617) 425-2000 Dr. John Butter, MDBoston, MA · $23 in drug and device payments (2025) · Telehealth ·
(857) 307-4100 Dr. John Chahraban, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 636-5000 Dr. John David, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 432-0986 Dr. John Doweiko, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 632-0760 Dr. John Fallon, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 246-3392 Dr. John Foster, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 643-8000 Dr. John Godine, MD PHDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-8722 Dr. John Harthorne, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-2876 Dr. John Hermos, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(857) 364-6130 Dr. John Jao, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 654-7535 Dr. John Keaney, MB BCH BAOBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-5036 Dr. John KeaneyBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 903-5000 Dr. John Mazzullo, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 636-5000 Dr. John Mcwilliams, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 732-6040 Dr. John MoyerBoston, MA · No drug or device payments recorded (2025) ·
(617) 789-3000 Dr. John Nadai, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-4400 Dr. John O'dea, MB BCH BAOBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-7400 Dr. John Potts, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 724-2167 Dr. John Sloan, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 414-5951 Dr. Johnson Wong, MDBoston, MA · $195 in drug and device payments (2025) · Telehealth ·
(617) 742-5730 Dr. John Stone, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 414-5951 Dr. John Tsay, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(857) 203-3000 Dr. John Wong, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 636-1545 Dr. John Zambrano, M.D., M.H.SBoston, MA · $14 in drug and device payments (2025) · Telehealth ·
(617) 654-7200 Dr. Jo Jones, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 724-3348 Dr. Jonathan Abraham, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 732-5500 Dr. Jonathan Afilalo, MDCMBoston, MA · No drug or device payments recorded (2025) ·
(617) 724-7738 Dr. Jonathan Berz, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 414-5951 Dr. Jonathan Bortinger, MDBoston, MA · No drug or device payments recorded (2025) ·
(617) 726-2862 Dr. Jonathan Chang, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 638-7480 Dr. Jonathan Cunningham, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 732-5500 Dr. Jonathan Eisen, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 636-5000 Dr. Jonathan Eisenberg, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 732-5500 Dr. Jonathan FogelBoston, MA · No drug or device payments recorded (2025) ·
(617) 632-3000 Dr. Jonathan Goldman, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 667-9600 Dr. Jonathan Heflin, MD, MPHBoston, MA · No drug or device payments recorded (2025) ·
(617) 724-3874 Dr. Jonathan LiBoston, MA · $3,067 in drug and device payments (2025) · Telehealth ·
(617) 667-7000 Dr. Jonathan Lim, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(636) 399-7157 Dr. Jonathan Ostrem, M.D., PH.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 732-5500 Dr. Jonathan Pincus, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 414-4290 Dr. Jonathan Ravid, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 726-2000 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.
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