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

Michelle Marquez Hsieh, PHARMD

Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist in San Dimas, CA · enumerated 2015.

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

National Provider Identifier

1144692195

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Registry record

Entity type Individual (Type 1)

Name Michelle Marquez Hsieh

Credential PHARMD

Sex Female

Practice address San Dimas, CA, 91773

Phone (909) 599-6891

Enumeration date Oct 28, 2015

Last updated in NPPES Feb 12, 2026

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

Taxonomy & licenses

1835P0018X Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist Pharmacy Service Providers · License 11400 (CA) Primary

183500000X Pharmacist Pharmacy Service Providers · License 69927 (CA) Secondary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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 Michelle Hsieh practice?

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

What is the NPI number for Michelle Hsieh?

The National Provider Identifier (NPI) for Michelle Hsieh is 1144692195, 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 2026-02-12.