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

Mahmoud El Hajj, MD

Individual provider Internal Medicine Physician · NPI 1093446874

Mahmoud El Hajj, MD is a Hospitalist in San Antonio, Texas. Qualified in 2018, 8 years ago. Practices with University of Texas Health Science Center at San Antonio, a 1,295-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
8
Licensed in
TX
In the registry since
2022
Specialties on file
2
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

4502 Medical Dr
San Antonio, TX 78229-4402
Phone: (210) 358-4000
Fax: (845) 784-3960
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence V9302 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence V9302 (TX)

Record details

NPI number1093446874
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 22, 2022
Last updated in NPPESJuly 31, 2025
Certification dateJuly 31, 2025

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice University Of Texas Health Science Center At San Antonio — 1295 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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