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

Dr. Greigstone Montgomery Yearwood, MD

Individual provider Internal Medicine Physician · NPI 1689631640

Dr. Greigstone Montgomery Yearwood, MD is an Internal Medicine in Woonsocket, Rhode Island. Qualified in 1988, 38 years ago. Practices as a sole proprietor, works from 3 locations and accepts Medicare assignment. Licensed in Rhode Island.

Years since qualifying
38
Licensed in
RI
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

191 Social St Ste 840
Woonsocket, RI 02895-3213
Phone: (401) 762-2535
Fax: (401) 762-2858
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 115 Cass Ave, Woonsocket, RI 02895-4705 — (401) 769-4100
  • 20 Cumberland Hill Rd Unit 202, Woonsocket, RI 02895-4854 — (401) 488-4003

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD07911 (RI)

Record details

NPI number1689631640
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 26, 2006
Last updated in NPPESJuly 16, 2026
Certification dateJuly 16, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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