Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Caspian Kuma Folmsbee, MD

Individual provider Internal Medicine Physician · NPI 1720306640

Dr. Caspian Kuma Folmsbee, MD practises Internal Medicine in Chicago, Illinois. Graduated from University of Kansas School of Med (KC/WICH/SAL) in 2010, 16 years ago. Practices with Rush University Medical Group, a 1,499-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
16
Trained at
University of Kansas School of Med (KC/WICH/SAL)
Licensed in
IL
In the registry since
2010
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

1653 W Congress Pkwy
Chicago, IL 60612-3833 Not confirmed with CMS for 13 years — call before visiting
Phone: (312) 563-2875
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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 125:057563 (IL)

Record details

NPI number1720306640
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2010
Last updated in NPPESMarch 27, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF KANSAS SCHOOL OF MED (KC/WICH/SAL)
Graduated 2010 (16 years in practice)
Group practice Rush University Medical Group — 1499 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients208
Services billed 656 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Rush University Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1499 clinicians in the practice; 12 are shown here.

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