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

Lydia Bai-Tsin Ann

Individual provider Geriatric Psychiatry Physician · NPI 1316433303

Lydia Bai-Tsin Ann is a Psychiatry in Orange, California. Graduated from University of California, Geffen School of Medicine in 2018, 8 years ago. Practices with The Department of Psychiatry, a 29-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
8
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2018
Specialties on file
3

Practice location Address checks out

3800 W Chapman Ave Ste 500
Orange, CA 92868-1638
Phone: (714) 456-5902
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 760 Westwood Plz Ste 37-384, Los Angeles, CA 90024-5055 — (310) 206-6721

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence A164652 (CA)
Geriatric Psychiatry Physician Taxonomy 2084P0805X · Licence A164652 (CA)
General Practice Physician Taxonomy 208D00000X · Licence A164652 (CA)

Record details

NPI number1316433303
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedJuly 3, 2018
Last updated in NPPESJuly 16, 2024
Certification dateJuly 16, 2024

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice The Department Of Psychiatry — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services