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

Gregory O Simonsen, PHD

Individual provider Counseling Psychologist · NPI 1356306690

Gregory O Simonsen, PHD is a Clinical Psychologist in Dallas, Texas. Qualified in 1998, 28 years ago. Accepts Medicare assignment. Licensed in Texas.

Years since qualifying
28
Licensed in
TX
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

3811 Turtle Creek Blvd Ste 305
Dallas, TX 75219-4542
Phone: (214) 443-7808
Fax: (214) 443-7807
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Counseling Psychologist (primary) Taxonomy 103TC1900X · Licence 31146 (TX)

Record details

NPI number1356306690
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 19, 2006
Last updated in NPPESApril 18, 2013

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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