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

Mark Toyama, MD

Individual provider Surgery Physician · NPI 1821085358

Mark Toyama, MD is a Surgery Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2005.

Licensed in
IL
In the registry since
2005
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

676 N Saint Clair St Ste 1525
Chicago, IL 60611-2927
Phone: (312) 255-1451
Fax: (312) 266-0478
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X (IL)

Record details

NPI number1821085358
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 30, 2005
Last updated in NPPESJuly 13, 2026
Mailing addressPo Box 388320, Chicago, IL 60638-8320

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