Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

John Mastrovich, MD, PA

Organization Allergy & Immunology Physician · NPI 1538264213

John Mastrovich, MD, PA is an Allergy & Immunology Physician in San Antonio, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

20650 Stone Oak Pkwy Ste 106
San Antonio, TX 78258-7355
Phone: (210) 342-6200
Fax: (210) 342-6201
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence L2449 (TX)

Record details

NPI number1538264213
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official John Mastrovich — President · (210) 342-6200
Other names Family Allergy And Asthma Specialists
NPI enumeratedSeptember 14, 2006
Last updated in NPPESOctober 12, 2007
Mailing address20650 Stone Oak Pkwy, Suite 106, San Antonio, TX 78258-7355

Other providers in San Antonio