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

Dr. John David Hierholzer, MD

Individual provider Family Medicine Physician · NPI 1215912118

Dr. John David Hierholzer, MD is a Family Medicine Physician in San Antonio, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

12000 Huebner Rd Ste 104
San Antonio, TX 78230-1209
Phone: (210) 561-2422
Fax: (210) 561-2466
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence L9732 (TX)

Record details

NPI number1215912118
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 13, 2005
Last updated in NPPESJune 8, 2015

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