1. Home
  2. Directory
  3. California
  4. San Jose
  5. Community Behavioral Health
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MENTAL HEALTH SYSTEMS, INC.
NPI 1710536073
Community/Behavioral Health in San Jose, CA

Active since September 10, 2019
2 N MARKET ST STE 300, SAN JOSE, CA 95113(858) 573-2600 Get Directions Write a Review

NPPES record last updated: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 24, 2026, Aug 26, 2020, Oct 17, 2019 and 1 more (4 updates tracked since 2019).

About Mental Health Systems, Inc. NPPES

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

MENTAL HEALTH SYSTEMS, INC. (NPI 1710536073) is a healthcare organization registered as a community/behavioral health in San Jose, California and active in the NPI registry since September 2019. The organization lists James C Callaghan, President/ceo, as its authorized official.

NPPES Registry Identity

NPI1710536073
Entity TypeOrganization
Primary Taxonomy251S00000X
Legal Business NameMENTAL HEALTH SYSTEMS, INC.
Location Address2 N MARKET ST STE 300San Jose, CA 95113-1211
Mailing Address9465 Farnham StSan Diego, CA 92123-1308
Phone(858) 573-2600
Organization SubpartNo
Authorized OfficialJames C CallaghanPresident/ceo · (858) 573-2600
Enumeration DateSeptember 10, 2019
Last NPPES UpdateJuly 24, 20264 updates tracked since enumeration
NPPES CertifiedJuly 24, 2026
✔ NPI 1710536073 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCommunity/Behavioral HealthAgencies
Taxonomy Code251S00000X
Definition
A private or public agency usually under local government jurisdiction, responsible for assuring the delivery of community based mental health, intellectual disabilities, substance abuse and/or behavioral health services to individuals with those disabilities. Services may range from companion care, respite, transportation, community integration, crisis intervention and stabilization, supported employment, day support, prevocational services, residential support, therapeutic and supportive consultation, environmental modifications, intensive in-home therapy and day treatment, in addition to traditional mental health and behavioral treatment.
2 N MARKET ST STE 300, San Jose, CA 95113
Open in Google Maps ↗

Other Providers at the Same Location NPPES 15

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

CHRISTIAN DURAND PMHNP-BC, RN
Nurse Practitioner (Psychiatric/Mental Health)
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233
CECILIA GARATE VACA
Rehabilitation Practitioner
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233
CLARISSA ELIZABETH HARWELL LCSW
Social Worker (Clinical)
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233
KATHERINE ZALOG
Case Manager/Care Coordinator
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 480-9123
MRS. KRYSTOVIA EVETH MARQUEZ
Social Worker
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233
RITA MARTINEZ
Rehabilitation Practitioner
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233
CRUZ SANCHEZ JR. MSW
Social Worker
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233
MS. CATHERINE S FAUSTO RN
Registered Nurse (Psychiatric/Mental Health)
2 N MARKET ST STE 300
SAN JOSE, CA 95113
Santa Clara County (510) 210-3233

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 Mental Health Systems, Inc.'s NPI number?

The NPI number for Mental Health Systems, Inc. is 1710536073. It was assigned to this organization in the NPPES registry on September 10, 2019.

Where is Mental Health Systems, Inc. located?

Mental Health Systems, Inc. is located at 2 N Market St Ste 300, San Jose, CA 95113. The listed phone number is (858) 573-2600.

What is Mental Health Systems, Inc.'s specialty?

The primary specialty registered for this NPI is Community/Behavioral Health with taxonomy code 251S00000X.

When was this NPI record last updated?

The NPPES record for Mental Health Systems, Inc. was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 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.