Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

James Knowles Ph.D., P.C.

Clinical Psychologist in Lambertville, MI · enumerated 2007 · authorized official James Knowles, Clinical Psychologist.

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

National Provider Identifier

1164611059

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Registry record

Entity type Organization (Type 2)

Legal business name James Knowles Ph.D., P.C.

Practice address 7581 Secor Rd, Lambertville, MI, 48144

Phone (734) 347-8002

Fax (248) 991-9360

Enumeration date Oct 17, 2007

Last updated in NPPES Jul 8, 2010

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 6301009946 (MI) Primary

Authorized official

Name James Knowles

Title Clinical Psychologist

Phone (734) 347-8002

Other identifiers

Identifier	Type	State	Issuer
680E812610	Other	MI	BCBS
04558	Other	-	PARAMOUNT

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-07-08. Verify at npiregistry.cms.hhs.gov.

Where is James Knowles Ph.D., P.C. located?

The practice location on file with NPPES is in Lambertville, MI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-08.