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

John B Rust, MD

Individual provider Psychiatry Physician · NPI 1518011444

John B Rust, MD is a Psychiatry Physician in San Marcos, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2007
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

120 Bert Brown St
San Marcos, TX 78666-5803
Phone: (512) 396-8500
Fax: (512) 754-3882
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence E1106 (TX)

Record details

NPI number1518011444
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 22, 2007
Last updated in NPPESJuly 8, 2007
Mailing address1010 Burleson St, San Marcos, TX 78666-4232

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