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

Justin Ayala Birnbaum, MD

Individual provider Psychiatry Physician · NPI 1013007848

Justin Ayala Birnbaum, MD is a Psychiatry in Palo Alto, California. Graduated from University of Wisconsin School of Medicine in 1992, 34 years ago. Practices with Stanford Health Care, a 3,085-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
34
Trained at
University of Wisconsin School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

300 Pasteur Dr
Palo Alto, CA 94304-2203
Phone: (650) 723-4000
Show map & directions

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

Additional practice locations (1)

  • 401 Quarry Rd, Palo Alto, CA 94304-1419 — (650) 736-0106

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G77734 (CA)

Record details

NPI number1013007848
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 13, 2006
Last updated in NPPESApril 29, 2024
Certification dateApril 29, 2024

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Group practice Stanford Health Care — 3085 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Palo Alto