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

Alec Chang, DO

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1013259415

Alec Chang, DO is a Psychiatry in Greenbrae, California. Qualified in 2013, 13 years ago. Practices with County of Marin, a 19-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Licensed in
CA
In the registry since
2013
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

250 Bon Air Rd
Greenbrae, CA 94904-1702
Phone: (415) 473-6835
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 401 W 2nd St, Reno, NV 89503-5345 — (775) 682-8469

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 20A14880 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1013259415
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMarch 23, 2013
Last updated in NPPESJuly 21, 2022
Mailing address250 Bon Air Road, Greenbrae, CA 94904

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolOTHER
Graduated 2013 (13 years in practice)
Group practice County Of Marin — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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