Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandria L Gassmann, PA-C

Physician Assistant in Aurora, CO · enumerated 2019.

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

National Provider Identifier

1639633779

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Registry record

Entity type Individual (Type 1)

Name Alexandria L Gassmann

Credential PA-C

Sex Female

Practice address 1360 S Potomac St, Aurora, CO, 80012

Phone (303) 337-5575

Enumeration date Jan 23, 2019

Last updated in NPPES Dec 17, 2020

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA.0005681 (CO) 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

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.

What specialty is Alexandria Gassmann?

Alexandria Gassmann 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.

Other providers at this practice address

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Melissa Timothy Medical Physician Assistant · Aurora, CO NPI 1225080328 Shabana Jiwani Internal Medicine Physician · Aurora, CO NPI 1609829365 Mauricio Waintrub Internal Medicine Physician · Aurora, CO NPI 1417900200 David Baez Internal Medicine Physician · Aurora, CO NPI 1407896830 Mauricio Waintrub, M.D., P.C Internal Medicine Physician · Aurora, CO NPI 1336172774 Mamta Varshney Internal Medicine Physician · Aurora, CO NPI 1205869443 David Cook Internal Medicine Physician · Aurora, CO NPI 1144316183 Herman Hasselkus Geriatric Medicine (Internal Medicine) Physician · Aurora, CO NPI 1053481382

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-17.