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

Individual provider Allergy & Immunology Physician · NPI 1740205418

Dr. John David Mastrovich, MD is an Allergy/Immunology in San Antonio, Texas. Graduated from Texas Tech University Health Science Center School of Medicine in 1996, 30 years ago. Practices as a sole proprietor. Licensed in Texas.

Years since qualifying
30
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

20650 Stone Oak Pkwy Ste 106
San Antonio, TX 78258-7355
Phone: (210) 342-6200
Fax: (210) 342-6201
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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 number1740205418
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 13, 2006
Last updated in NPPESOctober 12, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Accepts Medicare assignment Not indicated

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