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Internal Medicine

Rambabu Thallapaneni, MD

Works at hospitals in Hayward, CA · Fremont, CA · California

Summary

Dr. Rambabu Thallapaneni, MD is an internal medicine doctor at 2333 Mowry Ave, Suite 300, Fremont, CA 94538. Phone: (510) 796-0222. Accepts Medicare assignment. NPI 1043521255. 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: 2333 Mowry Ave, Suite 300, Fremont, CA 94538 · Directions (1 more location)
  • Phone: (510) 796‑0222
  • Medicare: Accepts Medicare assignment
  • Hospitals: St Rose Hospital, Washington Hospital
  • Group practice: California Cardiovascular Consultants
  • Medical school: graduated 2004 (22 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Rambabu Thallapaneni, 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 Rambabu Thallapaneni accept Medicare assignment?
Yes. Medicare's clinician data says Rambabu Thallapaneni 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 Rambabu Thallapaneni's NPI number?
1043521255. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Rambabu Thallapaneni works

Medicare's Facility Affiliation Data lists Rambabu Thallapaneni 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.

  • St Rose HospitalHayward, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: not listed by Medicare · CCN 050002
  • Washington HospitalFremont, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050195

Practice locations

Addresses where Rambabu Thallapaneni is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rambabu Thallapaneni as a member of this group (CMS data updated October 2, 2026).

  • California Cardiovascular Consultants29 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Fremont

Clinicians with the same Medicare primary specialty in Fremont, CA — not a recommendation.

All internal medicine doctors in Fremont →

Other clinicians in California Cardiovascular Consultants

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

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043521255
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