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General Surgery

Hariharan Thangarajah, MD

Sees patients in San Diego, CA · California

Summary

Dr. Hariharan Thangarajah, MD is a general surgeon at 3010 Childrens Way, San Diego, CA 92123. Phone: (858) 576-1700. Accepts Medicare assignment. NPI 1598979593. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 3010 Childrens Way, San Diego, CA 92123 · Directions (2 more locations)
  • Phone: (858) 576‑1700
  • Medicare: Accepts Medicare assignment
  • Group practice: Rady Children's Hospital San Diego
  • Medical school: University Of California, San Francisco School Of Medicine · 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 Hariharan Thangarajah, 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 Hariharan Thangarajah accept Medicare assignment?
Yes. Medicare's clinician data says Hariharan Thangarajah 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 Hariharan Thangarajah's NPI number?
1598979593. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

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

Group practices

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

  • Rady Children's Hospital San Diego169 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in San Diego

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

All general surgeons in San Diego →

Other clinicians in Rady Children's Hospital San Diego

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598979593
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians