Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Hartmuth E Walpus, PA

Physician Assistant in Fontana, CA · enumerated 2007.

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

National Provider Identifier

1164570057

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Registry record

Entity type Individual (Type 1)

Name Hartmuth E Walpus

Credential PA

Sex Male

Practice address 9961 Sierra Ave, Fontana, CA, 92335

Phone (909) 427-3910

Enumeration date Jan 8, 2007

Last updated in NPPES Dec 2, 2021

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA11664 (CA) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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 Hartmuth Walpus practice?

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

What is the NPI number for Hartmuth Walpus?

The National Provider Identifier (NPI) for Hartmuth Walpus is 1164570057, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-02.