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

John Tassey, PHD

Individual provider Clinical Psychologist · NPI 1821105131

John Tassey, PHD is a Clinical Psychologist in Oklahoma City, Oklahoma. Practices as a sole proprietor. Licensed in Oklahoma.

Licensed in
OK
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.

See every abbreviation used in this directory →

Practice location Address checks out

921 NE 13th St 183E Vamc
Oklahoma City, OK 73104-5007
Phone: (405) 270-0501
Fax: (405) 552-4361
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence 459 (OK)

Record details

NPI number1821105131
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 23, 2006
Last updated in NPPESJuly 8, 2007

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