What is Brett Gannon's NPI number?

Brett Gannon's National Provider Identifier (NPI) is 1447041629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Brett Gannon's specialty?

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

Where is Brett Gannon located?

Brett Gannon's practice location on file with NPPES is 7 Lorraine Ave, Clinton, MA 01510-1416.

What is Brett Gannon's phone number?

The practice phone number listed in the NPPES registry for Brett Gannon is (978) 502-6229.

Is Brett Gannon's NPI active?

Yes — Brett Gannon's NPI (1447041629) is active in the NPPES registry as of the last update on 2025-05-15.

IndividualActive

Brett Gannon, LCSW

NPI 1447041629 · Clinical Social Worker · Clinton, MA

Brett Gannon, LCSW is a Clinical Social Worker provider in Clinton, MA (NPI 1447041629).

Provider details

NPI number: 1447041629
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Credential: LCSW
Sex: Male
Sole proprietor: Yes
License: LCSW227550 (MA)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense LCSW227550 (MA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 index)

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

Registry tenure38% of score
1 yr 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

7 Lorraine Ave

Clinton, MA 01510-1416

Phone: (978) 502-6229

Street-level locationGet directions

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Mailing address