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Internal Medicine

Opeyemi Aroyewun, MD

Works at hospitals in Austin, TX · Texas

Summary

Dr. Opeyemi Aroyewun, MD is an internal medicine doctor at 1400 N Ih 35, Austin, TX 78701. Phone: (512) 324-7300. Accepts Medicare assignment. NPI 1669096525. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Opeyemi Aroyewun, 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 Opeyemi Aroyewun accept Medicare assignment?
Yes. Medicare's clinician data says Opeyemi Aroyewun 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.
What is Opeyemi Aroyewun's NPI number?
1669096525. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Opeyemi Aroyewun works

Medicare's Facility Affiliation Data lists Opeyemi Aroyewun 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 Opeyemi Aroyewun is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Opeyemi Aroyewun as a member of these groups (CMS data updated October 2, 2026).

  • Seton Family of Doctors792 clinicians in the group
  • Usacs Critical Care Medicine Services of Texas PLLC75 clinicians in the group

Specialties

Find other Internal Medicine doctors in Texas →

Other internal medicine doctors in Austin

Clinicians with the same Medicare primary specialty in Austin, TX — not a recommendation.

All internal medicine doctors in Austin →

Other clinicians in Seton Family of Doctors

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

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1669096525
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians