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

Dr. Marshall T Williams, MD, PHD

Individual provider Infectious Disease Physician · NPI 1982713988

Dr. Marshall T Williams, MD, PHD is an Infectious Disease Physician in Newark, Delaware. Licensed in Delaware and Maryland. Registered with an NPI since 2006.

Licensed in
DE, MD
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.
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

537 Stanton Christiana Rd Ste 201
Newark, DE 19713-2146
Phone: (302) 994-9692
Fax: (302) 994-9803
Show map & directions

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

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence C10003079 (DE)
Infectious Disease Physician Taxonomy 207RI0200X · Licence D0055056 (MD)

Record details

NPI number1982713988
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedAugust 30, 2006
Last updated in NPPESJanuary 31, 2008

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