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Gastroenterology

Ramon S. Reyes Iii, MD

Works at hospitals in Des Moines, IA · Iowa

Summary

Dr. Ramon S. Reyes Iii, MD is a gastroenterologist at 5950 University Ave, Suite 221, West Des Moines, IA 50266. Phone: (515) 875-9100. Accepts Medicare assignment. In 2024, Ramon S. Reyes Iii had 582 Original Medicare patients and 1,442 services. NPI 1609862663. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Ramon S. Reyes Iii, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ramon S. Reyes Iii accept Medicare assignment?
Yes. Medicare's clinician data says Ramon S. Reyes Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ramon S. Reyes Iii see?
In 2024, CMS data shows 582 Original Medicare patients and 1,442 services for Ramon S. Reyes Iii. This counts Original Medicare only and measures volume, not quality.
What is Ramon S. Reyes Iii's NPI number?
1609862663. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ramon S. Reyes Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients582
Services billed to Medicare1,442
Different services or procedures48
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)445 services
  2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)115 services
  3. Biopsy of large bowel using a flexible endoscope (45380)105 services
  4. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)90 services
  5. Colorectal cancer screening; colonoscopy on individual at high risk (G0105)82 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure68%
  • Arthritis41%
  • Depression23%
  • Anxiety22%
  • Diabetes21%

Hospitals where Ramon S. Reyes Iii works

Medicare's Facility Affiliation Data lists Ramon S. Reyes Iii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Ramon S. Reyes Iii is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ramon S. Reyes Iii as a member of this group (CMS data updated October 2, 2026).

  • The Iowa Clinic PC310 clinicians in the group

Specialties

Find other Gastroenterology doctors in Iowa →

Other gastroenterologists in West Des Moines

Clinicians with the same Medicare primary specialty in West Des Moines, IA — not a recommendation.

All gastroenterologists in West Des Moines →

Other clinicians in The Iowa Clinic PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year1991 (35 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609862663
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians