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

Jeffrey A. Olson, MD

Individual provider Internal Medicine Physician · NPI 1952374795

Jeffrey A. Olson, MD is an Internal Medicine in Chicago, Illinois. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 1999, 27 years ago. Practices with Vivek Gupta, MD, SC, a 28-clinician group and accepts Medicare assignment. Licensed in California and Illinois.

Years since qualifying
27
Trained at
R Franklin University of Med & SCI/Chicago Medical School
Licensed in
CA, IL
In the registry since
2006
Specialties on file
2
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

5215 N California Ave
Chicago, IL 60625-7014
Phone: (773) 878-3627
Fax: (773) 275-5860
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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 0000 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence A75543 (CA)

Record details

NPI number1952374795
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 10, 2006
Last updated in NPPESMarch 7, 2023
Certification dateOctober 30, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolR FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
Graduated 1999 (27 years in practice)
Group practice Vivek Gupta, M.D., S.C. — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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