NPI Portal NPI Lookup & Verification

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

Ms. Diana Leigh Hasenpflug, ATC

Sports Medicine (Preventive Medicine) Physician in Pleasanton, CA · enumerated 2022.

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

National Provider Identifier

1518678531

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Registry record

Entity type Individual (Type 1)
Name Ms. Diana Leigh Hasenpflug
Credential ATC
Sex Female
Practice address Pleasanton, CA, 94566
Phone (925) 895-9244
Enumeration date Dec 9, 2022
Last updated in NPPES Dec 9, 2022

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

Taxonomy & licenses

2083S0010X Sports Medicine (Preventive Medicine) Physician Allopathic & Osteopathic Physicians · License 951079 (CA) 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.

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Frequently asked questions

Where does Diana Hasenpflug practice?
The practice location on file with NPPES is in Pleasanton, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Diana Hasenpflug?
The National Provider Identifier (NPI) for Diana Hasenpflug is 1518678531, 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 2022-12-09.