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

Herman Adriaan Koster, PT

Physical Therapist in El Paso, TX · enumerated 2006 · practices at Physiotherapy of El Paso, P.C..

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

National Provider Identifier

1831135318

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Registry record

Entity type Individual (Type 1)

Name Herman Adriaan Koster

Credential PT

Sex Male

Practice address El Paso, TX, 79925

Phone (915) 562-8525

Fax (915) 566-3889

Enumeration date Jun 21, 2006

Last updated in NPPES Nov 18, 2009

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

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 1054971 (TX) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier	Type	State	Issuer
108032703	Medicaid	TX	-

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

What is the NPI number for Herman Koster?

The National Provider Identifier (NPI) for Herman Koster is 1831135318, a Type 1 (individual) record in the CMS NPPES registry.

Where does Herman Koster practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-11-18.