Aileen Wendy Zhen, DO
Nephrology Physician · Springfield, IL
Aileen Wendy Zhen, DO is a nephrology physician with a practice address in Springfield, Illinois, and NPI 1174985998, issued on Mar 22, 2016. Check the license (Illinois 036.155827, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Aileen Wendy Zhen
- Credential
- DO
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License numbers
- 036.155827 IL
279360 MA
OT017265 PA
Self-reported in NPPES; status is on the state search - Practice location
- 350 W Carpenter St, Springfield, IL 62702
- Phone
- (217) 528-7541
- Enumerated
- Mar 22, 2016
- Record last updated
- Jul 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210719001440); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2016
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 350 W Carpenter St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bhavani Adusumilli, MDNephrology Physician1568792604
- Edwilyn Colwell, APRNFamily Nurse Practitioner1538642533
- Terra Curtis, NPFamily Nurse Practitioner1215434550
- Merry Downer, M.D.Nephrology Physician1518054121
- Nicholas Fenwick, APRNFamily Nurse Practitioner1154082808
- Kristen Ferguson, M.D.Emergency Medicine Physician1750308227
Verify Aileen Wendy Zhen 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 036.155827Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% more Medicare Part D claims than the average nephrology physician in 2024
2,174 Medicare Part D claims for 327 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.
Most prescribed
- Potassium Chloride208 claims
- Amlodipine Besylate195 claims
- Calcitriol174 claims
- Furosemide172 claims
- Losartan Potassium164 claims
- Lisinopril152 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $149.35
7 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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
- Springfield Clinic, LLPLincoln, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Aileen Wendy Zhen among 572 nephrology physician records in Illinois
Aileen Wendy Zhen, DO 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 2016, is newer than 83% of them.
- NPI issued2016 · 83% of these records are older, 16% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2016 · median 2002 among the 433 with a school on file
- Record last updated2021 · 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 Springfield → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Bhavani Adusumilli, MDSpringfield, IL 627021568792604
- Merry Downer, M.D.Springfield, IL 627021518054121
- Nicolas Forero, M.D.Springfield, IL 627021740264365
- Ahmad Mohamad, M.DSpringfield, IL 627021891071007
- Richa Pandey, MDSpringfield, IL 627021922312834
- Bradford West, M.D.Springfield, IL 627021194969170
- Vikrampal Bhatti, MDSpringfield, IL 627111861431165
- Xueguang Chen, MDSpringfield, IL 627111730243015
Common questions
What is Aileen Wendy Zhen, DO's NPI number?
Aileen Wendy Zhen, DO's National Provider Identifier (NPI) is 1174985998, issued on Mar 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Aileen Wendy Zhen, DO located?
The NPPES record lists a practice address at 350 W Carpenter St, Springfield, IL, 62702. Phone: (217) 528-7541. Providers update this record themselves, so call before visiting.
How can I verify Aileen Wendy Zhen, DO's license?
NPPES lists Illinois license number 036.155827, 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 Aileen Wendy Zhen, DO prescribe under Medicare Part D?
In 2024, Aileen Wendy Zhen, DO had 2,174 Medicare Part D claims for 327 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Aileen Wendy Zhen, DO's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.