Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Didem Saygin, MD

Individual provider Rheumatology Physician · NPI 1861929564

Didem Saygin, MD practises Rheumatology in Chicago, Illinois. Qualified in 2014, 12 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
12
Licensed in
IL
In the registry since
2017
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

1611 W Harrison St Ste 510
Chicago, IL 60612-4861
Phone: (312) 563-2800
Fax: (312) 563-2075
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 036.152058 (IL)

Record details

NPI number1861929564
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2017
Last updated in NPPESJanuary 16, 2026
Certification dateJanuary 16, 2026

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolOTHER
Graduated 2014 (12 years in practice)
Group practice Rush University Medical Group — 1499 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients68
Services billed 93 a service is one billed item, such as a visit, a test or a procedure
Average patient age67

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.

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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