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

Marcus R Williams, MD

Individual provider Internal Medicine Physician · NPI 1619057734

Marcus R Williams, MD is an Internal Medicine Physician in Exton, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2006.

Licensed in
PA
In the registry since
2006
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

80 W Welsh Pool Rd Ste 101S
Exton, PA 19341-1233
Phone: (484) 483-2745
Fax: (484) 879-4098
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD428872 (PA)

Record details

NPI number1619057734
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESFebruary 4, 2014
Mailing address80 W Welsh Pool Rd, Suite 101s, Exton, PA 19341-1233

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