Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Joyce Ji, MD

Individual provider Internal Medicine Physician · NPI 1659752822

Dr. Joyce Ji, MD practises Internal Medicine in San Diego, California. Graduated from Washington University School of Medicine in 2015, 11 years ago. Practices with Regents of the University of California, a 2,061-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California and Missouri.

Years since qualifying
11
Trained at
Washington University School of Medicine
Licensed in
CA, MO
In the registry since
2015
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

200 W Arbor Dr
San Diego, CA 92103-9000
Phone: (800) 926-8273
Fax: (888) 539-8781
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 9300 Campus Point Dr, La Jolla, CA 92037-1300 — (800) 926-8273
  • 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003 — (314) 362-1700

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C200279 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence 2017032658 (MO)

Record details

NPI number1659752822
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2015
Last updated in NPPESMay 8, 2025
Certification dateMay 8, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Regents Of The University Of California — 2061 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients146
Services billed 422 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2061 clinicians in the practice; 12 are shown here.

Other providers in San Diego