Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Robert C Williams, PHD

Psychologist in East Greenbush, NY · enumerated 2006.

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

National Provider Identifier

1932210804

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert C Williams

Credential PHD

Sex Male

Practice address East Greenbush, NY, 12061

Phone (518) 479-4046

Fax (518) 479-4090

Enumeration date Aug 31, 2006

Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 007679 (NY) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
00926476	Medicaid	NY	-
150129	Other	NY	MHN
41134	Other	NY	MVP
040426032141	Other	NY	FIDELIS CARE
1036894	Other	NY	METRACOMP
132844	Other	NY	VALUE OPTIONS; CDPHP; MHS
61-73007	Other	NY	UNITED BEHAVIORAL HEALTH
6801263003	Other	NY	GHI
7220089	Other	NY	AETNA
PSY507679-4B	Other	NY	WORKERS COMP
000406637003	Other	NY	BCBS; HEALTH INTEGRATED

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

What is the NPI number for Robert Williams?

The National Provider Identifier (NPI) for Robert Williams is 1932210804, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Williams practice?

The practice location on file with NPPES is in East Greenbush, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Laurie Mcbain Mental Health Counselor · East Greenbush, NY NPI 1275644858 Mark Tatar Clinical Psychologist · East Greenbush, NY NPI 1043428147 Karen Voss Clinical Social Worker · East Greenbush, NY NPI 1184616781

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.