Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathleen Osman, RPA-C

Physician Assistant in Smithtown, NY · enumerated 2009.

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

National Provider Identifier

1659504207

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Registry record

Entity type Individual (Type 1)

Name Kathleen Osman

Credential RPA-C

Sex Female

Practice address 50 New York Ave # 25a, Smithtown, NY, 11787

Phone (631) 862-3000

Enumeration date Aug 31, 2009

Last updated in NPPES Jun 9, 2020

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 013477-1 (NY) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 013477 (NY) Primary

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 does Kathleen Osman practice?

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

What is the NPI number for Kathleen Osman?

The National Provider Identifier (NPI) for Kathleen Osman is 1659504207, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-09.