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

Dr. Steven Lee Isaak, PHD

Individual provider Clinical Psychologist · NPI 1437944287

Dr. Steven Lee Isaak, PHD is a Clinical Psychologist in Tulsa, Oklahoma. Licensed in Colorado. Registered with an NPI since 2025.

Licensed in
CO
In the registry since
2025
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

10159 E 11th St
Tulsa, OK 74128-3058
Phone: (918) 384-4655
Show map & directions

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

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY.0006717 (CO)

Record details

NPI number1437944287
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedApril 11, 2025
Last updated in NPPESApril 11, 2025
Certification dateApril 11, 2025

Other providers in Tulsa