Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Guajardo, PHD, MS, PA-C

Physician Assistant in Chelsea, MI · enumerated 2017.

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

National Provider Identifier

1346753746

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Registry record

Entity type Individual (Type 1)

Name Alexandra Guajardo

Credential PHD, MS, PA-C

Sex Female

Practice address 775 S Main St, Chelsea, MI, 48118

Phone (734) 593-5128

Fax (734) 593-5106

Enumeration date Nov 8, 2017

Last updated in NPPES Sep 19, 2019

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601008362 (MI) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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

What specialty is Alexandra Guajardo?

Alexandra Guajardo is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-19.