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

Robert A Zajac, MD

Individual provider Infectious Disease Physician · NPI 1013907963

Robert A Zajac, MD is an Infectious Disease in San Antonio, Texas. Graduated from Louisiana State University School of Medicine in New Orleans in 1981, 45 years ago. Practices with Robert a Zajac MD PA, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
45
Trained at
Louisiana State University School of Medicine in New Orleans
Licensed in
TX
In the registry since
2005
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

150 E Sonterra Blvd Ste 170
San Antonio, TX 78258-4098
Phone: (210) 481-2800
Fax: (210) 481-2834
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence H3973 (TX)

Record details

NPI number1013907963
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 24, 2005
Last updated in NPPESAugust 8, 2024
Certification dateAugust 8, 2024
Mailing addressPo Box 1346, San Antonio, TX 78295-1346

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Medical schoolLOUISIANA STATE UNIVERSITY SCHOOL OF MEDICINE IN NEW ORLEANS
Graduated 1981 (45 years in practice)
Group practice Robert A Zajac Md Pa — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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