Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

John D. Martin, Phd.P.C.

Q: What type of organization is John D. Martin, Phd.P.C.?

John D. Martin, Phd.P.C. is registered in NPPES as a Psychologist (its primary provider taxonomy).

Psychologist in Scituate, MA · enumerated 2009 · authorized official John Martin, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1942448493

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Registry record

Entity type Organization (Type 2)

Legal business name John D. Martin, Phd.P.C.

Practice address 9 Doctors Hill Dr, Scituate, MA, 02066

Phone (781) 378-0942

Fax (781) 378-0942

Enumeration date Jan 21, 2009

Last updated in NPPES Feb 11, 2014

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers · License MA420 (MA) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 420 (MA) Secondary

Authorized official

Name John Martin

Title President

Phone (781) 383-6740

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is John D. Martin, Phd.P.C.?

John D. Martin, Phd.P.C. is registered in NPPES as a Psychologist (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-11.