Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Ellen C Peterson

Clinical Social Worker in Ithaca, NY · enumerated 2007 · authorized official Ellen Peterson, Owner Psychotherapist.

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

National Provider Identifier

1265646590

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Registry record

Entity type Organization (Type 2)

Legal business name Ellen C Peterson

Other name <Unavail>

Practice address 402 N Cayuga St, Ithaca, NY, 14850

Phone (607) 272-7720

Fax (607) 564-0554

Enumeration date May 9, 2007

Last updated in NPPES Jun 24, 2008

Taxonomy & classification

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License PR0432461 (NY) Primary

Authorized official

Name Ellen Peterson

Title Owner Psychotherapist

Phone (607) 272-7720

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

Where is Ellen C Peterson located?

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-06-24. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-24.