NPI age
19 years
Enumerated 2006-07-12
● Active
Type 1 · Individual
DR. Mark Clayton Stahl, D.O.
Stahl is 1 of 38 allergy & immunology providers in San Antonio and 1 of 506 in Texas.
Primary specialty
Allergy & Immunology
Plus 1 subspecialty
Licensed in
TX, OH
2 states
Status
Active
No deactivations on record
Last NPPES update
2021-04-29
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 506 active allergy & immunology providers in Texas.
NPI age
19 years
≈ at median (19 yr)
State licenses
2 states
Top 90% — 9% of peers are multi-state
Subspecialties
1
In the 28% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-07Enumerated in NPPES
2006
2026
Where they practice
Practice location
14615 San Pedro Ave Ste 250
San Antonio, TX 782324316
Mailing address
14615 San Pedro Ave Ste 250
San Antonio, TX 782324316
Specialties
-
Allergy & Immunology PrimaryAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and...
-
PediatricsA pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment...
Practice context
Part of a multi-provider practice. 3 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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