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

BAY CHILDREN'S SERVICES
NPI 1003095563
Psychiatry & Neurology - Child & Adolescent Psychiatry in Berkeley, CA

Q: What is Bay Children's Services's NPI number?

The NPI number for Bay Children's Services is 1003095563. It was assigned to this organization in the NPPES registry on October 31, 2007. The provider was formerly known as Bay Area Children's Associatiobn.

Q: What is Bay Children's Services's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Active since October 31, 2007

3030 ASHBY AVE, SUITE 104, BERKELEY, CA 94705(510) 224-4221(510) 422-1442 Get Directions Write a Review

NPPES record last updated: October 10, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 10, 2026, Jan 29, 2026, May 1, 2024 and 1 more (4 updates tracked since 2017).

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About Bay Children's Services NPPES

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

BAY CHILDREN'S SERVICES (NPI 1003095563), doing business as Bay Area Children's Associatiobn, is a healthcare organization registered as a child & adolescent psychiatry in Berkeley, California and active in the NPI registry since October 2007. The organization maintains 2 additional practice locations and lists Thomas Paul Tarshis, Founder And Cfo, as its authorized official.

NPPES Registry Identity

NPI1003095563

Entity TypeOrganization

Primary Taxonomy2084P0804X

Legal Business NameBAY CHILDREN'S SERVICES

Location Address3030 ASHBY AVE, SUITE 104Berkeley, CA 94705-2439

Mailing Address3030 Ashby Ave Ste 104Berkeley, CA 94705-2439 · (510) 224-4221 · Fax (510) 422-1442

Phone(510) 224-4221

Fax(510) 422-1442

Organization SubpartNo

Authorized OfficialThomas Paul TarshisFounder And Cfo · (510) 224-4221

Enumeration DateOctober 31, 2007

Last NPPES UpdateOctober 10, 20264 updates tracked since enumeration

NPPES CertifiedOctober 10, 2026

✔ NPI 1003095563 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 5

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0804X

Definition

Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

Also ListedPsychologistTaxonomy 103T00000X

Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X

Also ListedMarriage & Family TherapistTaxonomy 106H00000X

Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X

3030 ASHBY AVE, Berkeley, CA 94705

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Other Names 1

Former Legal Business NameBay Area Children's Associatiobn

Secondary Practice Locations 2

Location 1390 Bridge Pkwy Ste 220Redwood City, CA 94065-1061 · Phone (510) 224-4221 · Fax (510) 422-1224

Location 21408 Chapin Ave Ste 3Burlingame, CA 94010-4080 · Phone (510) 224-4221 · Fax (510) 422-1442

Other Providers at the Same Location NPPES 9

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

MS. CATALINA MARTINEZ

Health and Wellness Coach

3030 ASHBY AVE
BERKELEY, CA 94705

Alameda County (510) 213-8866

DR. JANE LESLIE WEISBIN PSY.D.

Psychologist

3030 ASHBY AVE, SUITE 107A
BERKELEY, CA 94705

Alameda County (510) 601-0784

MS. TALY RUTENBERG LCSW

Social Worker (Clinical)

3030 ASHBY AVE, #117
BERKELEY, CA 94705

Alameda County (510) 848-6196

MARIA-CHRISTINA STEWART, PH.D. PSYCHOLOGIST, INC.

Psychologist (Clinical)

3030 ASHBY AVE, SUITE 115
BERKELEY, CA 94705

Alameda County (415) 787-2305

PATRICIA MCGUCKIAN-CAVANAUGH MFT

Marriage & Family Therapist

3030 ASHBY AVE, SUITE 117
BERKELEY, CA 94705

Alameda County (510) 287-8765

ROCKRIDGE CHILD PSYCH

Psychiatry & Neurology (Psychiatry)

3030 ASHBY AVE
BERKELEY, CA 94705

Alameda County (510) 213-8866

MS. GAIL P. HUNT LCSW, BCD

Social Worker (Clinical)

3030 ASHBY AVE, SUITE 111
BERKELEY, CA 94705

Alameda County (510) 841-3002

MRS. SHARON PATRICIA TESTA-HARKER M.S.

Marriage & Family Therapist

3030 ASHBY AVE, STE. 111A
BERKELEY, CA 94705

Alameda County (510) 655-3289

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 Bay Children's Services's NPI number?

The NPI number for Bay Children's Services is 1003095563. It was assigned to this organization in the NPPES registry on October 31, 2007. The provider was formerly known as Bay Area Children's Associatiobn.

Where is Bay Children's Services located?

Bay Children's Services is located at 3030 Ashby Ave Suite 104, Berkeley, CA 94705. The listed phone number is (510) 224-4221.

What is Bay Children's Services's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

When was this NPI record last updated?

The NPPES record for Bay Children's Services was last updated on October 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.