IndividualActive
William Carr, PH.D.
NPI 1538266788 · Psychologist · Boston, MA
William Carr, PH.D. is a Psychologist provider in Boston, MA (NPI 1538266788).
Provider details
- NPI number
- 1538266788
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4481 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
150 S Huntington Ave
116b
Boston, MA 02130-4817
Phone: (857) 364-5046
Fax: (857) 364-6599
Street-level locationGet directions
Mailing address
38 Warwick St
Quincy, MA 02170-2215
Registry dates
- Enumerated
- 2006-09-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Carr's NPI number?
- William Carr's National Provider Identifier (NPI) is 1538266788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Carr's specialty?
- William Carr is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is William Carr located?
- William Carr's practice location on file with NPPES is 150 S Huntington Ave, Boston, MA 02130-4817.
- What is William Carr's phone number?
- The practice phone number listed in the NPPES registry for William Carr is (857) 364-5046.
- Is William Carr's NPI active?
- Yes — William Carr's NPI (1538266788) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.