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

William E Master, MD

Individual provider Internal Medicine Physician · NPI 1679563365

William E Master, MD is an Internal Medicine Physician in Rockport, Maine. Licensed in Maine. Registered with an NPI since 2005.

Licensed in
ME
In the registry since
2005
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

4 Glen Cove Dr Ste 5
Rockport, ME 04856-4235
Phone: (207) 921-8000
Fax: (207) 921-5277
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 015391 (ME)

Record details

NPI number1679563365
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 25, 2005
Last updated in NPPESJuly 28, 2015
Mailing address4 Glen Cove Dr, Suite 5, Rockport, ME 04856-4235

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