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

Alan Jacob Merin, MD

Individual provider Nephrology Physician · NPI 1366440547

Alan Jacob Merin, MD is a Nephrology in San Antonio, Texas. Graduated from Virginia Commonwealth University, School of Medicine in 1976, 50 years ago. Accepts Medicare assignment. Licensed in Texas.

Years since qualifying
50
Trained at
Virginia Commonwealth University, School of Medicine
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

1211 E Commerce St
San Antonio, TX 78205-3307
Phone: (210) 224-1079
Fax: (210) 281-0248
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence F6041 (TX)

Record details

NPI number1366440547
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 12, 2005
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyNEPHROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolVIRGINIA COMMONWEALTH UNIVERSITY, SCHOOL OF MEDICINE
Graduated 1976 (50 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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