Karun Madhav Nair, MD
Rheumatology Physician · Chicago, IL
Karun Madhav Nair, MD is a rheumatology physician with a practice address in Chicago, Illinois, and NPI 1710514724, issued on Mar 27, 2020. Check the license (Illinois 036.164277, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Karun Madhav Nair
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 036.164277 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1620 W Harrison St, Chicago, IL 60612
- Phone
- (312) 942-5000
- Enumerated
- Mar 27, 2020
- Record last updated
- May 19, 2023
- Medicare enrollment
- Enrolled (PECOS I20250905002332); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 340 in Illinois → Look up another NPI →
Also registered at 1620 W Harrison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kylie Abernathy, OTOccupational Therapist1518489269
- Iris Abrahantes Morales, MDObstetrics & Gynecology Physician1164155164
- Sunaina Addanki, MDInternal Medicine Physician1396593349
- Favour AdebayoPhysical Therapist1245072081
- Adebanke Adeyemi, MDInternal Medicine Physician1922933936
- Emily Adochio-Clancy, MDInfectious Disease Physician1629606975
Verify Karun Madhav Nair in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036.164277Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average rheumatology physician in 2024
99 Medicare Part D claims for 30 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Duloxetine Hcl19 claims
- Prednisone18 claims
- Azathioprine12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $162.13
2 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Arthritis And Rheumatology Medical Associates IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karun Madhav Nair among 340 rheumatology physician records in Illinois
Karun Madhav Nair, MD is one of 340 rheumatology physician records with a practice address in Illinois. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 93% of them.
- NPI issued2020 · 93% of these records are older, 5% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2020 · median 2003 among the 244 with a school on file
- Record last updated2023 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Illinois
There are 340 rheumatology physician records in Illinois.
All 340 in Illinois → Every provider in Chicago → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Shiva AramiChicago, IL 606121629173968
- Sanford Baim, M.D.Chicago, IL 606121841227311
- Joel Block, M.D.Chicago, IL 606121285659771
- John Case, M.D.Chicago, IL 606121104840123
- Huan ChangChicago, IL 606121336244870
- Sarah Everakes, M.D.Chicago, IL 606121487687299
- Paul Glickman, M.D.Chicago, IL 606121801829510
- Meenakshi Jolly, M.D.Chicago, IL 606121316970015
Common questions
What is Karun Madhav Nair, MD's NPI number?
Karun Madhav Nair, MD's National Provider Identifier (NPI) is 1710514724, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Karun Madhav Nair, MD located?
The NPPES record lists a practice address at 1620 W Harrison St, Chicago, IL, 60612. Phone: (312) 942-5000. Providers update this record themselves, so call before visiting.
How can I verify Karun Madhav Nair, MD's license?
NPPES lists Illinois license number 036.164277, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karun Madhav Nair, MD prescribe under Medicare Part D?
In 2024, Karun Madhav Nair, MD had 99 Medicare Part D claims for 30 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.