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

Thomas Klarquist, PC

Organization Internal Medicine Physician · NPI 1710103148

Thomas Klarquist, PC is an Internal Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2007.

Licensed in
IL
In the registry since
2007
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

111 N Wabash Ave Ste 600
Chicago, IL 60602-1903
Phone: (312) 332-0844
Fax: (312) 332-0847
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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 (IL)

Record details

NPI number1710103148
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Thomas Klarquist — President · (312) 332-0844
NPI enumeratedApril 17, 2007
Last updated in NPPESAugust 22, 2020
Mailing address111 N Wabash Ave, Suite 600, Chicago, IL 60602-1903

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