NPPES file of Aug 9, 2026

Timothy Michael Chow

Nephrology Physician · Iowa City, IA

Timothy Michael Chow is a nephrology physician with a practice address in Iowa City, Iowa, and NPI 1053871954, issued on Mar 25, 2019. Check the license (Iowa MD-55321, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1053871954
Name
Timothy Michael Chow
Primary taxonomy
Nephrology Physician 207RN0300X
License number
MD-55321 IA
Self-reported in NPPES; status is on the state search
Practice location
200 Hawkins Dr, Iowa City, IA 52242
Phone
(319) 356-8133
Enumerated
Mar 25, 2019
Record last updated
Sep 22, 2025
Fax
(319) 356-2999
Medicare enrollment
Enrolled (PECOS I20251023003138); accepts Medicare assignment
Medical or professional school
University Of Missouri, Kansas City, School Of Medicine, 2019
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 Hawkins Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Helena Aaberg, MDAnesthesiology Physician1689301558
  2. Abdullah Abbasi, MDGastroenterology Physician1932944204
  3. Mary Jo Abbott, RPHPharmacist1841325875
  4. Francois Abboud, MDCardiovascular Disease Physician1598753113
  5. Abdalla Abdalla, MBBCHAnatomic Pathology & Clinical Pathology Physician1518859826
  6. Sameh AbdallaAnatomic Pathology & Clinical Pathology Physician1437902160

Verify Timothy Michael Chow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license MD-55321
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

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98% fewer Medicare Part D claims than the average nephrology physician in 2024

34 Medicare Part D claims for 16 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Timothy Chow34
  2. Specialty average1,465

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

  1. 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).

Timothy Michael Chow among 92 nephrology physician records in Iowa

Timothy Michael Chow 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 2019, is newer than 83% of them.

  • NPI issued2019 · 83% of these records are older, 14% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2019 · 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.

The 8 nephrology physician records with the nearest ZIP codes

  1. Lisa Antes, MDIowa City, IA 522421174511026
  2. John Bertolatus, MDIowa City, IA 522421720075831
  3. Mony Fraer, MDIowa City, IA 522421497845960
  4. Joel Gordon, MDIowa City, IA 522421174511034
  5. Rebecca Hegeman, MDIowa City, IA 522421386626604
  6. Chou-Long Huang, MD PHDIowa City, IA 522421396704425
  7. Lawrence Hunsicker, MDIowa City, IA 522421881676195
  8. Diana Jalal, MDIowa City, IA 522421033142096

Common questions

What is Timothy Michael Chow's NPI number?

Timothy Michael Chow's National Provider Identifier (NPI) is 1053871954, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Timothy Michael Chow located?

The NPPES record lists a practice address at 200 Hawkins Dr, Iowa City, IA, 52242. Phone: (319) 356-8133. Providers update this record themselves, so call before visiting.

How can I verify Timothy Michael Chow's license?

NPPES lists Iowa license number MD-55321, 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 Timothy Michael Chow prescribe under Medicare Part D?

In 2024, Timothy Michael Chow had 34 Medicare Part D claims for 16 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.