NPPES file of Aug 9, 2026

Gastroenterology Physician in Iowa

122 NPPES records list gastroenterology physician with a practice address in Iowa, 3.8 per 100,000 residents, the 47th highest rate of 51. Iowa City and Clive have the most; each record links to the provider's NPI and the Iowa license search. Page 3 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Iowa City has the most, 44

  1. Iowa City44
  2. Clive20
  3. West Des Moines15
  4. Cedar Rapids9
  5. Waterloo8

Gastroenterology Physician records in Iowa

  1. Samyuktha Ramavaram, M.DBettendorf, IA 527221467743039
  2. Suresh Reddy, MDWaterloo, IA 507011053358226
  3. Ramon Reyes, M.D.West Des Moines, IA 502661609862663
  4. Justin Rice, MDWest Des Moines, IA 502661528001724
  5. James Roat, M.D.Sioux City, IA 511041457331621
  6. Stacey Roberts, MDClive, IA 503251912965146
  7. Konrad Schulze, MDIowa City, IA 522421962484345
  8. Bavikatte Shivakumar, M.D.Davenport, IA 528071043200835
  9. Thomas Shreves, MDIowa City, IA 522451902833882
  10. Moaz SialWaterloo, IA 507011891102364
  11. Robert Silber, MDIowa City, IA 522421114902400
  12. William Silverman, MDIowa City, IA 522421811971849
  13. Evelyn Simabuguro ChinemIowa City, IA 522421316863301
  14. Satish Sondhi, M.D.Mason City, IA 504011952399529
  15. Jeffrey Stahl, MDWest Des Moines, IA 502661013900844
  16. Marta Tejedor Bravo, PHD, MBBSIowa City, IA 522421134965882
  17. Amber Tierney, M.D.West Des Moines, IA 502661902191059
  18. Joseph Truszkowski, MDIowa City, IA 522451154358984
  19. Ravi Vemulapalli, MDClive, IA 503251992763122
  20. Archana Verma, MDClive, IA 503251821046087
  21. Gary Weinman, M.D.Cedar Rapids, IA 524011508842618
  22. Richard Weyman, MDBettendorf, IA 527221295717478

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

Iowa ranks 47 of 51 per resident

  1. Oklahoma3.9
  2. Montana3.9
  3. Arkansas3.9
  4. Iowa3.8
  5. Kansas3.8
  6. Nevada3.7
  7. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.5% of these records appear in a Medicare file, against 84.4% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Iowa79.5%
  2. United States84.4%

Gastroenterology Physician records in Iowa, measured

  • In a Medicare file97 of 122 · 79.5% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file84 · 68.9% here, 73.7% nationally
  • Not updated in five years or more66 · 54.1% here, 55.6% nationally
  • Median graduation year2000 · the 84 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

122 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Iowa: 3.8 per 100,000 residents against 6.2 nationally (50 states and D.C.). Iowa City has 44 of them (36%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Arkansas119
  2. Nevada119
  3. Mississippi128
  4. Kansas111

States with a similar rate per 100,000

  1. Montana3.9
  2. Oklahoma3.9
  3. North Dakota4.1
  4. Idaho4.2

The largest states

  1. California2,140
  2. New York1,797
  3. Florida1,513
  4. Texas1,478
  5. Pennsylvania1,049

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.