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

Individual provider Psychiatry Physician · NPI 1902911381

Dr. Alexander Adu Clerk, MD is a Psychiatry in San Jose, California. Graduated from Loma Linda University School of Medicine in 1975, 51 years ago. Practices as a sole proprietor. Licensed in California.

Years since qualifying
51
Trained at
Loma Linda University School of Medicine
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

455 Oconnor Dr Ste 110
San Jose, CA 95128-1637
Phone: (408) 295-4532
Fax: (408) 295-4738
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sleep Specialist (PhD) (primary) Taxonomy 173F00000X · Licence 448 (CA)
Psychiatry Physician Taxonomy 2084P0800X · Licence A36573 (CA)

Record details

NPI number1902911381
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 19, 2006
Last updated in NPPESJanuary 19, 2021
Certification dateJanuary 19, 2021

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolLOMA LINDA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1975 (51 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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