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

Individual provider Psychiatry Physician · NPI 1104862689

Dr. William Reeves Tatomer, MD is a Psychiatry in San Mateo, California. Graduated from University of Virginia School of Medicine in 1971, 55 years ago. Practices as a sole proprietor. Licensed in California.

Years since qualifying
55
Trained at
University of Virginia 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.

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Practice location Address checks out

101 S San Mateo Dr Ste 300
San Mateo, CA 94401-3819
Phone: (650) 342-4442
Fax: (650) 342-8816
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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 C35537 (CA)

Record details

NPI number1104862689
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 21, 2006
Last updated in NPPESApril 16, 2010

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 1971 (55 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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