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

Individual provider Family Medicine Physician · NPI 1255378204

Grier H Merwin, MD is a Family Practice in Dorchester, Massachusetts. Graduated from Columbia University College of Physicians and Surgeons in 1967, 59 years ago. Practices with Uphams Corner Health Committee Inc, a 27-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
59
Trained at
Columbia University College of Physicians and Surgeons
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

500 Columbia Road Upham's Corner Health Ctr
Dorchester, MA 02125
Phone: (617) 287-8000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 35314 (MA)

Record details

NPI number1255378204
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 31, 2006
Last updated in NPPESMarch 22, 2018
Mailing address415 Columbia Rd, Dorchester, MA 02125-2424

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolCOLUMBIA UNIVERSITY COLLEGE OF PHYSICIANS AND SURGEONS
Graduated 1967 (59 years in practice)
Group practice Uphams Corner Health Committee Inc — 27 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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