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

Individual provider Internal Medicine Physician · NPI 1538332564

Thomas J. Ruppert, MD is an Internal Medicine Physician in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2008
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

4251 N Keystone Ave
Chicago, IL 60641-2313
Phone: (773) 545-4893
Fax: (773) 545-4893
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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 · Licence 036-081776 (IL)

Record details

NPI number1538332564
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 10, 2008
Last updated in NPPESApril 10, 2008

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