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

Individual provider Psychiatry Physician · NPI 1720342116

Dr. Alexander Saul Cardenas, MD practises Psychiatry in San Mateo, California. Graduated from Stanford University School of Medicine in 2013, 13 years ago. Practices with County of Butte, a 29-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
13
Trained at
Stanford University School of Medicine
Licensed in
CA
In the registry since
2012
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 Not confirmed with CMS for 12 years — call before visiting
Phone: (650) 573-2530
Fax: (650) 573-2527
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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 A126651 (CA)

Record details

NPI number1720342116
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 29, 2012
Last updated in NPPESFebruary 14, 2014

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice County Of Butte — 29 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at County of Butte

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 29 clinicians in the practice; 12 are shown here.

Other providers in San Mateo