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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STEPHEN F MARTON PSYD
NPI 1669210050
Psychologist - Clinical in San Quentin, CA

Active since July 18, 2024
100 MAIN ST, SAN QUENTIN, CA 94964(415) 454-1460 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jul 7, 2026, Aug 1, 2024, Jul 18, 2024 (3 updates tracked since 2024).

About Stephen F Marton Psyd NPPES

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

STEPHEN F MARTON PSYD (NPI 1669210050) is an individual clinical provider in San Quentin, California, licensed in California (36662) and active in the NPI registry since July 2024.

NPPES Registry Identity

NPI1669210050
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameSTEPHEN F MARTONCredential: PSYD
Location Address100 MAIN STSan Quentin, CA 94964
Mailing Address9214 Woodland DrSilver Spring, MD 20910-1518 · (240) 898-7702
Phone(415) 454-1460
Sole ProprietorNo
Enumeration DateJuly 18, 2024
Last NPPES UpdateJuly 7, 20263 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
✔ NPI 1669210050 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 · 36662
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.
100 MAIN ST, San Quentin, CA 94964
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Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MADELEINE CHAO
Student in an Organized Health Care Education/Training Program
100 MAIN ST
SAN QUENTIN, CA 94964
Marin County (518) 867-2112
EVERARDO LEON
Student in an Organized Health Care Education/Training Program
100 MAIN ST
SAN QUENTIN, CA 94964
Marin County (415) 250-7289

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 Stephen Marton's NPI number?

The NPI number for Stephen Marton is 1669210050. It was assigned to this individual provider in the NPPES registry on July 18, 2024.

Where is Stephen Marton located?

Stephen Marton practices at 100 Main St, San Quentin, CA 94964. The listed phone number is (415) 454-1460.

What is Stephen Marton's specialty?

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

When was this NPI record last updated?

The NPPES record for Stephen Marton was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 49 days 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.