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

Individual provider Clinical Psychologist · NPI 1003826611

Dr. Mackenzie Scott Steiner, PHD is a Clinical Psychologist in Santa Cruz, 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 PO Box

The provider listed a PO Box rather than a street location, so this is not a walk-in address.

PO Box 2343
Santa Cruz, CA 95063-2343
Phone: (512) 789-7055
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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 35809 (CA)

Record details

NPI number1003826611
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 8, 2006
Last updated in NPPESSeptember 15, 2025
Certification dateSeptember 15, 2025

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