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

Individual provider Clinical Psychologist · NPI 1801817606

Dr. William Marcus Tanner, PHD is a Clinical Psychologist in Long Beach, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3939 Atlantic Ave Ste 208
Long Beach, CA 90807-3536
Phone: (562) 997-0949
Fax: (562) 997-0948
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 17184 (CA)

Record details

NPI number1801817606
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 21, 2006
Last updated in NPPESJuly 8, 2007

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