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

Chuan-Jay J Chen, MD

Individual provider Emergency Medicine Physician · NPI 1205366457

Chuan-Jay J Chen, MD is an Emergency Medicine in Saint Helena, California. Graduated from University of California, San Francisco School of Medicine in 2017, 9 years ago. Practices with Mills-Peninsula Emergency Medical Associates, Inc, a 29-clinician group and accepts Medicare assignment. Licensed in California and Massachusetts.

Years since qualifying
9
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA, MA
In the registry since
2017
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

10 Woodland Rd
Saint Helena, CA 94574-9554
Phone: (707) 963-6425
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 272210 (MA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 171993 (CA)

Record details

NPI number1205366457
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 19, 2017
Last updated in NPPESOctober 4, 2022
Certification dateOctober 4, 2022
Mailing address10 Woodland Rd, Saint Helena, CA 94574-9554

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Mills-Peninsula Emergency Medical Associates, Inc — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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