IndividualActive
William Sullivan, M.D.
NPI 1487736377 · Psychiatry Physician · Portland, ME
William Sullivan, M.D. is a Psychiatry Physician provider in Portland, ME (NPI 1487736377).
Provider details
- NPI number
- 1487736377
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 12321 (ME)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
144 State St
Portland, ME 04101-3776
Phone: (207) 799-0457
Fax: (207) 799-0457
Street-level locationGet directions
Mailing address
29 Hunts Point Rd
Cape Elizabeth, ME 04107-2926
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2010-11-18
Frequently asked questions
- What is William Sullivan's NPI number?
- William Sullivan's National Provider Identifier (NPI) is 1487736377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sullivan's specialty?
- William Sullivan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Sullivan located?
- William Sullivan's practice location on file with NPPES is 144 State St, Portland, ME 04101-3776.
- What is William Sullivan's phone number?
- The practice phone number listed in the NPPES registry for William Sullivan is (207) 799-0457.
- Is William Sullivan's NPI active?
- Yes — William Sullivan's NPI (1487736377) is active in the NPPES registry as of the last update on 2010-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.