DR. MARK RICHARD ZASLAV PH.D.
NPI 1255486270
Psychologist - Addiction (Substance Use Disorder) in Corte Madera, CA

Q: What is Mark Zaslav's NPI number?

The NPI number for Mark Zaslav is 1255486270. It was assigned to this individual provider in the NPPES registry on January 23, 2007.

Q: What is Mark Zaslav's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Addiction (Substance Use Disorder), with taxonomy code 103TA0400X.

Q: When was this NPI record last updated?

The NPPES record for Mark Zaslav was last updated on September 11, 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 January 23, 2007

21 TAMAL VISTA BLVD STE 120, CORTE MADERA, CA 94925(415) 927-1560 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Mark Richard Zaslav Ph.d. NPPES

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

DR. MARK RICHARD ZASLAV PH.D. (NPI 1255486270) is an individual addiction (substance use disorder) provider in Corte Madera, California, licensed in California (PSY 9205) and active in the NPI registry since January 2007.

NPPES Registry Identity

NPI1255486270

Entity TypeIndividualMale

Primary Taxonomy103TA0400X

Provider Legal NameDR. MARK RICHARD ZASLAVCredential: PH.D.

Location Address21 TAMAL VISTA BLVD STE 120Corte Madera, CA 94925-1140

Mailing Address2 Glen WayLarkspur, CA 94939-1904 · (415) 927-1560

Phone(415) 927-1560

Sole ProprietorYes

Enumeration DateJanuary 23, 2007

Last NPPES UpdateSeptember 11, 2025

✔ NPI 1255486270 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychologist · Addiction (Substance Use Disorder)Behavioral Health & Social Service Providers

Taxonomy Code103TA0400X

License✔ Licensed in CA · PSY 9205

Definition

A psychologist with a proficiency that involves the application of psychological treatment of addiction stemming from the use of alcohol and other psychoactive substances (e.g., nicotine, marijuana, cocaine, heroin) or behavioral addictions (e.g., gambling) with the aim of cessation or reduction of use and/or the amelioration of emotional, behavioral, interpersonal and other problems arising from the addictive behavior.

Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License PSY 9205 (CA)

Also ListedPsychologist · ForensicTaxonomy 103TF0200X · License PSY 9205 (CA)

21 TAMAL VISTA BLVD STE 120, Corte Madera, CA 94925

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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 Mark Zaslav's NPI number?

The NPI number for Mark Zaslav is 1255486270. It was assigned to this individual provider in the NPPES registry on January 23, 2007.

Where is Mark Zaslav located?

Mark Zaslav practices at 21 Tamal Vista Blvd Ste 120, Corte Madera, CA 94925. The listed phone number is (415) 927-1560.

What is Mark Zaslav's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Addiction (Substance Use Disorder), with taxonomy code 103TA0400X.

When was this NPI record last updated?

The NPPES record for Mark Zaslav was last updated on September 11, 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.