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

William Chang-Yuen Chen

Individual provider Gastroenterology Physician · NPI 1366837890

William Chang-Yuen Chen is an Internal Medicine in San Diego, California. Graduated from Icahn School of Medicine at Mount Sinai in 2015, 11 years ago. Practices with San Diego Digestive Disease Consultants Inc a Medical Group, a 13-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
11
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA
In the registry since
2015
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Practice location Address checks out

8008 Frost St Ste 200
San Diego, CA 92123-4207
Phone: (858) 292-7527
Fax: (858) 292-7804
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 15611 Pomerado Rd Ste 500, Poway, CA 92064-2438 — (858) 292-7527

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A184576 (CA)

Record details

NPI number1366837890
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 1, 2015
Last updated in NPPESMay 13, 2026
Certification dateMay 13, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 2015 (11 years in practice)
Group practice San Diego Digestive Disease Consultants Inc A Medical Group — 13 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in San Diego