Dr. Kichul Ko
Rheumatology (Rheumatology Physician)
5841 S Maryland Ave
Chicago, IL 60637
Who else practices at this address →
Cook County includes primary care (3% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Rush Medical College of Rush University (2007)
- Years since graduation
- 19
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 176
Licensed in Illinois since 2010, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Medical school: Rush Medical College of Rush University
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Rheumatology Physician primary
IL license 036125297 (first issued 2010; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- The University of Chicago Medical Center Chicago, IL
- Ingalls Memorial Hospital Harvey, IL
Medical groups
- University of Chicago (1,712 clinicians)
- The University of Chicago Medical Center (915 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 176
- Services billed
- 490
- Patients’ average age
- 67
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 176 | 113 |
| Established patient office or other outpatient visit, 40-54 minutes | 81 | 47 |
| New patient office or other outpatient visit, 60-74 minutes | 33 | 33 |
| Aspiration and/or injection of fluid from large joint | 24 | 15 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 15 | 15 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Prednisone Other prescribers in Chicago, IL | 131 |
| Hydroxychloroquine Sulfate Other prescribers in Chicago, IL | 96 |
| Humira Pen (adalimumab) Other prescribers in Chicago, IL | 62 |
| Mycophenolate Mofetil Other prescribers in Chicago, IL | 51 |
| Gabapentin Other prescribers in Chicago, IL | 40 |
| Cyclobenzaprine Hcl Other prescribers in Chicago, IL | 38 |
| Amlodipine Besylate Other prescribers in Chicago, IL | 25 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Chicago, IL | 24 |
| Tramadol Hcl Other prescribers in Chicago, IL | 24 |
| Pregabalin Other prescribers in Chicago, IL | 18 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 4 companies reported 8 payments worth $178 in total to this clinician.
| Amgen Inc. | $89.88 |
|---|---|
| AbbVie Inc. | $49.90 |
| Takeda Pharmaceuticals U.S.A., Inc. | $20.64 |
| GlaxoSmithKline, LLC. | $17.53 |
| Food and Beverage | $178 |
|---|
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 1 industry-funded study in 2025, from 1 company. The companies reported $31,542 in research payments for these studies, mostly to the institutions running them.
- Program to Assess Adverse Events and Change in Disease Activity of Oral Upadacitinib in Adult Participants With Moderate to Severe Systemic Lupus Erythematosus
AbbVie Inc. · Active, not recruiting · NCT05843643
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.