Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Rubenzahl, Knudsen & Associates Psych., Srvcs, P.C.

Psychologist in Watertown, NY · enumerated 2005 · authorized official Thomas Knudsen, Owner.

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

National Provider Identifier

1578552170

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Registry record

Entity type Organization (Type 2)

Legal business name Rubenzahl, Knudsen & Associates Psych., Srvcs, P.C.

Practice address 22670 Summit Drive, Suite 2, Watertown, NY, 13601

Phone (315) 788-3332

Fax (315) 788-4584

Enumeration date Oct 17, 2005

Last updated in NPPES Sep 26, 2014

Taxonomy & classification

103T00000X Psychologist Behavioral Health & Social Service Providers · License 009513 (NY) Primary

Authorized official

Name Thomas Knudsen

Title Owner

Phone (315) 788-3332

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

Where is Rubenzahl, Knudsen & Associates Psych., Srvcs, P.C. located?

The practice location on file with NPPES is in Watertown, NY.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-09-26. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Lee Vance Psychologist · Watertown, NY NPI 1538564737 Amy Adams Social Worker · Watertown, NY NPI 1932653243

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-26.