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Internal Medicine

Rahul C. Ramaswamy, MD

Works at hospitals in Saint Louis, MO · Missouri

Summary

Dr. Rahul C. Ramaswamy, MD is an internal medicine doctor at 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110. Phone: (314) 747-3000. Accepts Medicare assignment. NPI 1275277311. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110 · Directions
  • Phone: (314) 747‑3000
  • Medicare: Accepts Medicare assignment
  • Hospital: Barnes Jewish Hospital
  • Group practice: Washington University
  • Medical school: Vanderbilt University School Of Medicine · graduated 2022 (4 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Rahul C. Ramaswamy, 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 Rahul C. Ramaswamy accept Medicare assignment?
Yes. Medicare's clinician data says Rahul C. Ramaswamy 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 Rahul C. Ramaswamy's NPI number?
1275277311. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Rahul C. Ramaswamy works

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

Group practices

Medicare enrollment lists Rahul C. Ramaswamy as a member of this group (CMS data updated October 2, 2026).

  • Washington University3,029 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All internal medicine doctors in Saint Louis →

Other clinicians in Washington University

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

Clinician information

CredentialMD
Medical schoolVanderbilt University School Of Medicine
Graduation year2022 (4 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275277311
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