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

Dr. William M Sullivan, MD

Individual provider Psychiatry Physician · NPI 1487736377

Dr. William M Sullivan, MD is a Psychiatry Physician in Portland, Maine. Licensed in Maine. Registered with an NPI since 2006.

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

See every abbreviation used in this directory →

Practice location Address checks out

144 State St
Portland, ME 04101-3776
Phone: (207) 799-0457
Fax: (207) 799-0457
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 12321 (ME)

Record details

NPI number1487736377
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 19, 2006
Last updated in NPPESNovember 18, 2010
Mailing address29 Hunts Point Rd, Cape Elizabeth, ME 04107-2926

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