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

Robert R Williams, MD

Individual provider Internal Medicine Physician · NPI 1184682254

Robert R Williams, MD is an Internal Medicine Physician in Tracy, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2151 W Grant Line Rd
Tracy, CA 95377-7309
Phone: (209) 832-0535
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence G62642 (CA)
Pediatrics Physician Taxonomy 208000000X · Licence G62642 (CA)

Record details

NPI number1184682254
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2006
Last updated in NPPESFebruary 25, 2011
Mailing address600 Coffee Rd, Modesto, CA 95355-4201

Other providers in Tracy