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

Sandra Gisela Williams, MD, PHD

Individual provider Rheumatology Physician · NPI 1720468317

Sandra Gisela Williams, MD, PHD is a Rheumatology Physician in Bethesda, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2015
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

Building 10 Rm 10N-311 9000 Rockville Pike
Bethesda, MD 20892-3733
Phone: (015) 946-0353
Show map & directions

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

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence D85887 (MD)

Record details

NPI number1720468317
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedJune 9, 2015
Last updated in NPPESAugust 23, 2021
Certification dateAugust 23, 2021

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