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

Dr. Andrew Ray Tren Chang, MD

Individual provider Psychiatry Physician · NPI 1447001102

Dr. Andrew Ray Tren Chang, MD is a Psychiatry Physician in San Mateo, California. Licensed in California. Registered with an NPI since 2024.

Licensed in
CA
In the registry since
2024
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

222 W 39th Ave
San Mateo, CA 94403-4364
Phone: (650) 954-0544
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 15634 (CA)

Record details

NPI number1447001102
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2024
Last updated in NPPESJune 18, 2025
Certification dateJune 18, 2025

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