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Internal Medicine

Joyce Ji, MD

Works at hospitals in San Diego, CA · California

Summary

Joyce Ji, MD (Internal Medicine) is listed by Medicare at 1 hospital in San Diego, CA. NPI 1659752822. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Joyce Ji, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
11Years since medical school (graduated 2015)
Washington University School Of MedicineMedical school
FemaleGender (as listed)
Regents of the University of CaliforniaGroup practice

Quick answers

Which hospitals does Joyce Ji work at?
Medicare's official clinician data lists Joyce Ji at 1 hospital: UC San Diego Health Hillcrest - Hillcrest Med Ctr. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Joyce Ji see patients?
Medicare's clinician data lists 3 practice locations, including San Diego, CA and La Jolla, CA. Call before your visit to confirm the address.
What is Joyce Ji's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Joyce Ji accept Medicare assignment?
Yes. Medicare's clinician data says Joyce Ji accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Joyce Ji?
(858) 657-7000, as listed in official Medicare / NPI Registry data.
What is Joyce Ji's NPI number?
1659752822. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Joyce Ji works

Medicare's Facility Affiliation Data lists Joyce Ji at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Joyce Ji is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Joyce Ji as a member of this group (CMS data updated 2026-10-02).

  • Regents of the University of California2,089 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 →

Clinician information

CredentialMD
Medical schoolWashington University School Of Medicine
Graduation year2015
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659752822
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians