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Apex Allergy and Asthma Pllc

Allergy & Immunology Physician in San Antonio, TX · enumerated 2021 · authorized official Mark Stahl, President.

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

National Provider Identifier

1770166548

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Registry record

Entity type Organization (Type 2)
Legal business name Apex Allergy and Asthma Pllc
Practice address 14615 San Pedro Ave Ste 250, San Antonio, TX, 78232
Phone (210) 490-2051
Enumeration date Apr 29, 2021
Last updated in NPPES Apr 29, 2021

Taxonomy & classification

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mark Stahl
Title President
Phone (210) 490-2051

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 is Apex Allergy and Asthma Pllc located?
The practice location on file with NPPES is in San Antonio, TX.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2021-04-29. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-04-29.