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

Arsen M Zacharian, MD

Individual provider Internal Medicine Physician · NPI 1386802833

Arsen M Zacharian, MD is an Internal Medicine in San Antonio, Texas. Qualified in 1996, 30 years ago. Practices with Usacs Integrated Acute Care Services of Texas, PLLC, a 400-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado and Texas.

Years since qualifying
30
Licensed in
CO, TX
In the registry since
2008
Specialties on file
3
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: (210) 358-8002
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 810 W Highway 71, Marble Falls, TX 78654-8602 — (830) 201-8000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence N7378 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence DR0059873 (CO)
Hospitalist Physician Taxonomy 208M00000X · Licence DR0059873 (CO)

Record details

NPI number1386802833
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 30, 2008
Last updated in NPPESMarch 23, 2026
Certification dateMarch 23, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Usacs Integrated Acute Care Services Of Texas, Pllc — 400 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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