Kareen Rose Elizabeth Simpson, M.D.
Nephrology Physician · Chicago, IL
Kareen Rose Elizabeth Simpson, M.D. is a nephrology physician with a practice address in Chicago, Illinois, and NPI 1780663963, issued on Jan 16, 2006. Check the license (Illinois 036105119, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Kareen Rose Elizabeth Simpson
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 036105119 IL
Self-reported in NPPES; status is on the state search - Practice location
- 10801 S Western Ave Ste 201, Chicago, IL 60643
- Phone
- (773) 770-4824
- Enumerated
- Jan 16, 2006
- Record last updated
- Nov 22, 2024
- Medicaid ID
- 036105119 IL
- Medicare enrollment
- Enrolled (PECOS I20040514000318); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 10801 S Western Ave Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nic Hristea, MDNephrology Physician1285689703
- Clark McClurkin, M.D.Nephrology Physician1184604282
- Rickeda Robinson, NPFamily Nurse Practitioner1689293987
Verify Kareen Rose Elizabeth Simpson 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 036105119Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average nephrology physician in 2024
1,446 Medicare Part D claims for 185 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Sevelamer Carbonate262 claims
- Hydralazine Hcl79 claims
- Carvedilol63 claims
- Furosemide62 claims
- Amlodipine Besylate57 claims
- Nifedipine Er54 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: $376.77
8 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 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
- Associates IN Nephrology SCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kareen Rose Elizabeth Simpson among 572 nephrology physician records in Illinois
Kareen Rose Elizabeth Simpson, M.D. is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1992 · median 2002 among the 433 with a school on file
- Record last updated2024 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Illinois
There are 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in Chicago → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Nic Hristea, MDChicago, IL 606431285689703
- April Kennedy, M.D.Chicago, IL 606431487738639
- Clark McClurkin, M.D.Chicago, IL 606431184604282
- Mohammad Puri, MDChicago, IL 606431629266341
- Christina Lattner, DNP APRNChicago, IL 606421174030811
- Farheen Shah-Khan, MDChicago, IL 606421164644480
- Arnold Berns, MDChicago, IL 606451699751628
- Alexander Hlepas, MDChicago, IL 606451063074938
Common questions
What is Kareen Rose Elizabeth Simpson, M.D.'s NPI number?
Kareen Rose Elizabeth Simpson, M.D.'s National Provider Identifier (NPI) is 1780663963, issued on Jan 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kareen Rose Elizabeth Simpson, M.D. located?
The NPPES record lists a practice address at 10801 S Western Ave Ste 201, Chicago, IL, 60643. Phone: (773) 770-4824. Providers update this record themselves, so call before visiting.
How can I verify Kareen Rose Elizabeth Simpson, M.D.'s license?
NPPES lists Illinois license number 036105119, 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 Kareen Rose Elizabeth Simpson, M.D. prescribe under Medicare Part D?
In 2024, Kareen Rose Elizabeth Simpson, M.D. had 1,446 Medicare Part D claims for 185 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.