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Internal Medicine

Carolyn H. Sui, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Carolyn H. Sui, MD is an internal medicine doctor at 4647 Zion Ave, San Diego, CA 92120. Phone: (619) 528-5000. Accepts Medicare assignment. In 2024, Carolyn H. Sui had 12 Original Medicare patients and 17 services. NPI 1053359653. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 4647 Zion Ave, San Diego, CA 92120 · Directions
  • Phone: (619) 528‑5000
  • Medicare: Accepts Medicare assignment
  • Hospital: Kaiser Foundation Hospital - San Diego
  • Group practice: Southern California Permanente Medical Group
  • Medical school: University Of Texas Southwestern Medical School At Dallas · 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 Carolyn H. Sui, 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 Carolyn H. Sui accept Medicare assignment?
Yes. Medicare's clinician data says Carolyn H. Sui 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 Carolyn H. Sui see?
In 2024, CMS data shows 12 Original Medicare patients and 17 services for Carolyn H. Sui. This counts Original Medicare only and measures volume, not quality.
What is Carolyn H. Sui's NPI number?
1053359653. 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 Carolyn H. Sui, 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 patients12
Services billed to Medicare17
Different services or procedures2
Participating Medicare providerYes
Average age of these patients69

Hospitals where Carolyn H. Sui works

Medicare's Facility Affiliation Data lists Carolyn H. Sui 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 Carolyn H. Sui is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Carolyn H. Sui as a member of this group (CMS data updated October 2, 2026).

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Diego

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

All internal medicine doctors in San Diego →

Other clinicians in Southern California Permanente Medical Group

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Southwestern Medical School At Dallas
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053359653
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