DR. MACKENZIE SCOTT STEINER PH.D.
NPI 1003826611
Psychologist - Clinical in Santa Cruz, CA

Q: What is Mackenzie Steiner's NPI number?

The NPI number for Mackenzie Steiner is 1003826611. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Q: What is Mackenzie Steiner's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Mackenzie Steiner was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 08, 2006

PO BOX 2343, SANTA CRUZ, CA 95063(512) 789-7055 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Sep 15, 2025, Sep 10, 2025 (2 updates tracked since 2025).

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About Dr. Mackenzie Scott Steiner Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MACKENZIE SCOTT STEINER PH.D. (NPI 1003826611) is an individual clinical provider in Santa Cruz, California, licensed in California (35809) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1003826611

Entity TypeIndividualFemale

Primary Taxonomy103TC0700X

Provider Legal NameDR. MACKENZIE SCOTT STEINERCredential: PH.D.

Location AddressPO BOX 2343Santa Cruz, CA 95063-2343

Mailing AddressPo Box 2343Santa Cruz, CA 95063-2343 · (512) 789-7055

Phone(512) 789-7055

Sole ProprietorYes

Enumeration DateAugust 8, 2006

Last NPPES UpdateSeptember 15, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2025

✔ NPI 1003826611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · 35809

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

PO BOX 2343, Santa Cruz, CA 95063

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mackenzie Steiner's NPI number?

The NPI number for Mackenzie Steiner is 1003826611. It was assigned to this individual provider in the NPPES registry on August 8, 2006.

Where is Mackenzie Steiner located?

Mackenzie Steiner practices at PO Box 2343, Santa Cruz, CA 95063. The listed phone number is (512) 789-7055.

What is Mackenzie Steiner's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

What insurance does Mackenzie Steiner accept?

Health plans from Blue Cross and Blue Shield of Texas list Mackenzie Steiner as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mackenzie Steiner was last updated on September 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.