Chih-Jen Cheng, MD
Nephrology Physician · Iowa City, IA
Chih-Jen Cheng, MD is a nephrology physician with a practice address in Iowa City, Iowa, and NPI 1073281705, issued on Aug 30, 2021. Check the license (Iowa SP-0239, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Chih-Jen Cheng
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- SP-0239 IA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Hawkins Dr, Iowa City, IA 52242
- Phone
- (319) 356-3500
- Enumerated
- Aug 30, 2021
- Record last updated
- Dec 18, 2025
- Fax
- (319) 356-2999
- Medicare enrollment
- Enrolled (PECOS I20210904000016); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 92 in Iowa → Look up another NPI →
Also registered at 200 Hawkins Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Francois Abboud, MDCardiovascular Disease Physician1598753113
- Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
- Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160
Verify Chih-Jen Cheng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license SP-0239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average nephrology physician in 2024
25 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Calcium Acetate16 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.
Bills Medicare through one group practice
- State University OF IowaIowa City, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chih-Jen Cheng among 92 nephrology physician records in Iowa
Chih-Jen Cheng, MD is one of 92 nephrology physician records with a practice address in Iowa. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2000 · median 2001 among the 67 with a school on file
- Record last updated2025 · 48% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Iowa
There are 92 nephrology physician records in Iowa.
All 92 in Iowa → Every provider in Iowa City → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Lisa Antes, MDIowa City, IA 522421174511026
- John Bertolatus, MDIowa City, IA 522421720075831
- Mony Fraer, MDIowa City, IA 522421497845960
- Joel Gordon, MDIowa City, IA 522421174511034
- Rebecca Hegeman, MDIowa City, IA 522421386626604
- Chou-Long Huang, MD PHDIowa City, IA 522421396704425
- Lawrence Hunsicker, MDIowa City, IA 522421881676195
- Diana Jalal, MDIowa City, IA 522421033142096
Common questions
What is Chih-Jen Cheng, MD's NPI number?
Chih-Jen Cheng, MD's National Provider Identifier (NPI) is 1073281705, issued on Aug 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Chih-Jen Cheng, MD located?
The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-3500. Providers update this record themselves, so call before visiting.
How can I verify Chih-Jen Cheng, MD's license?
NPPES lists Iowa license number SP-0239, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chih-Jen Cheng, MD prescribe under Medicare Part D?
In 2024, Chih-Jen Cheng, MD had 25 Medicare Part D claims; 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.