Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathan Evan Osterman, O.D.

Optometrist in Cedar Park, TX · enumerated 2015.

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

National Provider Identifier

1437531381

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Registry record

Entity type Individual (Type 1)

Name Dr. Nathan Evan Osterman

Credential O.D.

Sex Male

Practice address 11901 W Parmer Ln Ste 400, Cedar Park, TX, 78613

Phone (512) 528-1144

Fax (512) 528-1143

Enumeration date Jun 26, 2015

Last updated in NPPES Aug 4, 2022

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 4901004909 (MI) Secondary

152W00000X Optometrist Eye and Vision Services Providers · License 9443TG (TX) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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 Nathan Osterman practice?

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

What is the NPI number for Nathan Osterman?

The National Provider Identifier (NPI) for Nathan Osterman is 1437531381, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-04.