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

Mallory Williams, MD

Individual provider Surgery Physician · NPI 1669488003

Mallory Williams, MD is a General Surgery in Washington, District of Columbia. Qualified in 1999, 27 years ago. Practices with Cook County, a 787-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in District of Columbia, Massachusetts and Ohio.

Years since qualifying
27
Licensed in
DC, MA, OH
In the registry since
2006
Specialties on file
5
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

2041 Georgia Ave NW Ste 4000
Washington, DC 20060-4228
Phone: (202) 865-3785
Fax: (202) 865-3136
Show map & directions

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

Additional practice locations (1)

  • 3000 Arlington Ave, Toledo, OH 43614-2598 — (419) 383-4000

Specialties & licences

Trauma Surgery Physician (primary) Taxonomy 2086S0127X · Licence 35.095349 (OH)
Surgery Physician Taxonomy 208600000X · Licence 227496 (MA)
Surgery Physician Taxonomy 208600000X · Licence MD041969 (DC)
Surgery Physician Taxonomy 208600000X · Licence 35.095349 (OH)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence 35.095349 (OH)

Record details

NPI number1669488003
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2006
Last updated in NPPESJanuary 14, 2026
Certification dateJanuary 14, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Cook County — 787 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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