Mariam A. Khan, MD
Rheumatology Physician · Elmhurst, IL
Mariam A. Khan, MD is a rheumatology physician with a practice address in Elmhurst, Illinois, and NPI 1225317464, issued on Aug 5, 2011. Check the license (Illinois 036146687, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mariam A. Khan
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 036146687 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1200 S York St Ste 2000, Elmhurst, IL 60126
- Phone
- (331) 221-9199
- Enumerated
- Aug 5, 2011
- Record last updated
- Jun 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (331) 221-2774
- Medicare enrollment
- Enrolled (PECOS I20180828002817); 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 1200 S York St Ste 2000
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joseph Abraham, MDInternal Medicine Physician1982809356
- Robert Andersen, MDPediatrics Physician1588615637
- Ivana Asencio, MDObstetrics & Gynecology Physician1487231155
- Emily Barszcz, APN-CNPNurse Practitioner1407100381
- Judith Benka, NPPediatric Nurse Practitioner1063463115
- Taylor Comstock, PA-CSurgical Physician Assistant1649607953
Verify Mariam A. Khan 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 036146687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% more Medicare Part D claims than the average rheumatology physician in 2024
2,630 Medicare Part D claims for 538 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 98 claims were for opioids.
Most prescribed
- Prednisone497 claims
- Methotrexate412 claims
- Hydroxychloroquine Sulfate267 claims
- Allopurinol159 claims
- Leflunomide108 claims
- Methylprednisolone88 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.
The MIPS final score for 2023 (Medicare payment program): 91.4 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $137.73
6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. 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
- Endeavor Health Medical GroupElmhurst, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariam A. Khan among 340 rheumatology physician records in Illinois
Mariam A. Khan, 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 2011, is newer than 70% of them.
- NPI issued2011 · 70% of these records are older, 29% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2003 among the 244 with a school on file
- Record last updated2021 · 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 Elmhurst → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Douglas Cotsamire, MDElmhurst, IL 601261164487658
- Ramier Lehne, DOElmhurst, IL 601261023513173
- Syeda Nida, MDElmhurst, IL 601261629690763
- Purani Palaniswami, M.D.Elmhurst, IL 601261164568507
- Amritpal Anand, MDElgin, IL 601231770701716
- Priya Damaraju, M.D.Elgin, IL 601231194759878
- Matas Orentas, DOElgin, IL 601231396303004
- Nevetha Rajendran, MDElgin, IL 601231639758139
Common questions
What is Mariam A. Khan, MD's NPI number?
Mariam A. Khan, MD's National Provider Identifier (NPI) is 1225317464, issued on Aug 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mariam A. Khan, MD located?
The NPPES record lists a practice address at 1200 S York St Ste 2000, Elmhurst, IL, 60126. Phone: (331) 221-9199. Providers update this record themselves, so call before visiting.
How can I verify Mariam A. Khan, MD's license?
NPPES lists Illinois license number 036146687, 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 Mariam A. Khan, MD prescribe under Medicare Part D?
In 2024, Mariam A. Khan, MD had 2,630 Medicare Part D claims for 538 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Mariam A. Khan, MD's MIPS final score?
The 2023 MIPS final score is 91.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.