What is John Sinclair's NPI number?

John Sinclair's National Provider Identifier (NPI) is 1538165832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Sinclair's specialty?

John Sinclair is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).

Where is John Sinclair located?

John Sinclair's practice location on file with NPPES is 207 1st St, Pittsfield, MA 01201-4725.

What is John Sinclair's phone number?

The practice phone number listed in the NPPES registry for John Sinclair is (413) 445-7791.

Does John Sinclair accept Medicare?

John Sinclair is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is John Sinclair's NPI active?

Yes — John Sinclair's NPI (1538165832) is active in the NPPES registry as of the last update on 2007-07-08.

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John Sinclair, DDS

NPI 1538165832 · General Practice Dentistry · Pittsfield, MA

John Sinclair, DDS is a General Practice Dentistry provider in Pittsfield, MA (NPI 1538165832).

Provider details

NPI number: 1538165832
Entity type: Individual
Primary specialty: General Practice DentistryDental Providers
Credential: DDS
Sex: Male
License: 14912 (MA)

Practice location

207 1st St

Pittsfield, MA 01201-4725

Phone: (413) 445-7791

Fax: (413) 445-7532

Street-level locationGet directions

More MA providers

Mailing address

732 1/2 Barker Rd

Pittsfield, MA 01201-8000

Specialties & taxonomies

General Practice DentistryPrimary1223G0001XLicense 14912 (MA)
Dental Providers

Enrolled with Medicare as Practitioner - Oral Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
21 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.

Enumerated: 2005-06-22
Last updated: 2007-07-08

Frequently asked questions

What is John Sinclair's NPI number?: John Sinclair's National Provider Identifier (NPI) is 1538165832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is John Sinclair's specialty?: John Sinclair is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
Where is John Sinclair located?: John Sinclair's practice location on file with NPPES is 207 1st St, Pittsfield, MA 01201-4725.
What is John Sinclair's phone number?: The practice phone number listed in the NPPES registry for John Sinclair is (413) 445-7791.
Does John Sinclair accept Medicare?: John Sinclair is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is John Sinclair's NPI active?: Yes — John Sinclair's NPI (1538165832) 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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions