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

Individual provider Emergency Medicine Physician · NPI 1255712626

Sean Thomas Williams, MD is an Emergency Medicine Physician in Chicago, Illinois. Works from 3 locations. Licensed in Illinois.

Licensed in
IL
In the registry since
2015
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

5645 W Addison St Dept OF Emergency Medicine
Chicago, IL 60634-4403
Phone: (773) 794-8383
Fax: (773) 794-4686
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 7435 W Talcott Ave, Chicago, IL 60631-3707 — (773) 774-8000
  • 7435 W Talcott Ave, Chicago, IL 60631-3707 — (773) 774-8000

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036144052 (IL)

Record details

NPI number1255712626
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2015
Last updated in NPPESMarch 18, 2021
Certification dateMarch 18, 2021

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