What is John Williamson's NPI number?

John Williamson's National Provider Identifier (NPI) is 1205501145, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Williamson's specialty?

John Williamson is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).

Where is John Williamson located?

John Williamson's practice location on file with NPPES is 320 Harman St Apt 1r, Brooklyn, NY 11237-4929.

What is John Williamson's phone number?

The practice phone number listed in the NPPES registry for John Williamson is (585) 330-1092.

Is John Williamson's NPI active?

Yes — John Williamson's NPI (1205501145) is active in the NPPES registry as of the last update on 2021-08-12.

IndividualActive

John Williamson, LMSW

NPI 1205501145 · Social Worker · Brooklyn, NY

John Williamson, LMSW is a Social Worker provider in Brooklyn, NY (NPI 1205501145).

Provider details

NPI number: 1205501145
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: LMSW
Sex: Male
Sole proprietor: No
License: 113451-01 (NY)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense 113451-01 (NY)
Behavioral Health & Social Service Providers

Profile Score

Established profile(62/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
4 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

320 Harman St Apt 1r

Brooklyn, NY 11237-4929

Phone: (585) 330-1092

Street-level locationGet directions

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Mailing address