Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Michael G Gregory, MD

Individual provider Internal Medicine Physician · NPI 1265457675

Michael G Gregory, MD is an Internal Medicine in Brookline, Massachusetts. Qualified in 1987, 39 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
39
Licensed in
MA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

135 Pleasant St Apt 206
Brookline, MA 02446-7142
Phone: (617) 731-8131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MA208255 (MA)

Record details

NPI number1265457675
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 13, 2006
Last updated in NPPESJuly 8, 2007
Mailing address135 Pleasant St, Apt 206, Brookline, MA 02446-7142

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesGERIATRIC MEDICINE, HOSPICE/PALLIATIVE CARE
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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