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

Dr. Clay Whitten Ross, MD

Individual provider Psychiatry Physician · NPI 1215964390

Dr. Clay Whitten Ross, MD is a Psychiatry Physician in San Marcos, Texas. Licensed in Texas. Registered with an NPI since 2006.

Licensed in
TX
In the registry since
2006
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

1200 N Bishop St
San Marcos, TX 78666-2706
Phone: (512) 392-7151
Fax: (512) 392-5444
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence E1103 (TX)

Record details

NPI number1215964390
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 26, 2006
Last updated in NPPESDecember 10, 2007

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