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Internal Medicine

Kirtan Upadhyaya, MD

Works at hospitals in Orange, CA · California

Summary

Dr. Kirtan Upadhyaya, MD is an internal medicine doctor at 101 The City Dr S, Orange, CA 92868. Phone: (714) 456-7890. Accepts Medicare assignment. NPI 1184327306. 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: 101 The City Dr S, Orange, CA 92868 · Directions
  • Phone: (714) 456‑7890
  • Medicare: Accepts Medicare assignment
  • Hospital: UCI Health-Orange
  • Group practice: The Regents of the University of California-Irvine
  • Medical school: Cooper Medical College · graduated 2023 (3 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Kirtan Upadhyaya, 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 Kirtan Upadhyaya accept Medicare assignment?
Yes. Medicare's clinician data says Kirtan Upadhyaya 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 Kirtan Upadhyaya's NPI number?
1184327306. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Kirtan Upadhyaya works

Medicare's Facility Affiliation Data lists Kirtan Upadhyaya 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.

  • UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

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

Group practices

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

  • The Regents of the University of California-Irvine125 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Orange

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

All internal medicine doctors in Orange →

Other clinicians in The Regents of the University of California-Irvine

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

Clinician information

CredentialMD
Medical schoolCooper Medical College
Graduation year2023 (3 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184327306
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