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General Surgery

Jenny J. Sung, MD

Works at hospitals in Walnut Creek, CA · California

Summary

Dr. Jenny J. Sung, MD is a general surgeon at 1425 S Main St, Walnut Creek, CA 94596. Phone: (925) 295-4000. Accepts Medicare assignment. In 2024, Jenny J. Sung had 13 Original Medicare patients and 16 services. NPI 1346259173. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: General surgeon (Medicare lists General Surgery)
  • Address: 1425 S Main St, Walnut Creek, CA 94596 · Directions (1 more location)
  • Phone: (925) 295‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - Walnut Creek
  • Group practice: Permanente Medical Group Inc
  • Medical school: State University Of Ny Upstate Medical University · graduated 2000 (26 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jenny J. Sung, 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 Jenny J. Sung accept Medicare assignment?
Yes. Medicare's clinician data says Jenny J. Sung 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.
How many Medicare patients does Jenny J. Sung see?
In 2024, CMS data shows 13 Original Medicare patients and 16 services for Jenny J. Sung. This counts Original Medicare only and measures volume, not quality.
What is Jenny J. Sung's NPI number?
1346259173. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Jenny J. Sung, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients13
Services billed to Medicare16
Different services or procedures13
Participating Medicare providerYes
Average age of these patients63

Hospitals where Jenny J. Sung works

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

Group practices

Medicare enrollment lists Jenny J. Sung as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other General Surgery doctors in California →

Other general surgeons in Walnut Creek

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

All general surgeons in Walnut Creek →

Other clinicians in Permanente Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1346259173
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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians