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

Dr. Robert A Williamson, MD

Individual provider General Practice Physician · NPI 1821095696

Dr. Robert A Williamson, MD is a General Practice Physician in Gonzales, Texas. Licensed in Texas. Registered with an NPI since 2005.

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

1605 N Sarah Dewitt Dr
Gonzales, TX 78629-2700
Phone: (830) 672-4601
Fax: (830) 672-8101
Show map & directions

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

Specialties & licences

General Practice Physician (primary) Taxonomy 208D00000X · Licence D9725 (TX)

Record details

NPI number1821095696
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESJuly 13, 2026
Mailing addressPo Box 1840, Gonzales, TX 78629-1340