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

Dr. Michael Patrick Vaughn, M.D.PHD.

Allergy & Immunology Physician in San Antonio, TX · enumerated 2005.

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

National Provider Identifier

1881687879

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Registry record

Entity type Individual (Type 1)
Name Dr. Michael Patrick Vaughn
Credential M.D.PHD.
Sex Male
Practice address San Antonio, TX, 78258
Phone (210) 499-0033
Fax (210) 404-0926
Enumeration date Aug 25, 2005
Last updated in NPPES May 8, 2023

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

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License H7242 (TX) Primary

Other identifiers

Identifier Type State Issuer
133677801 Medicaid TX -
167435001 Medicaid TX -

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 Michael Vaughn practice?
The practice location on file with NPPES is in San Antonio, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Vaughn?
The National Provider Identifier (NPI) for Michael Vaughn is 1881687879, 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 2023-05-08.