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

DR. THOMAS BEESLEY D.O.
NPI 1306226881
Psychiatry & Neurology - Psychiatry in San Ysidro, CA

Q: What is Thomas Beesley's NPI number?

The NPI number for Thomas Beesley is 1306226881. It was assigned to this individual provider in the NPPES registry on June 1, 2015.

Q: What is Thomas Beesley's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Beesley was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since June 01, 2015

1666 PRECISION PARK LN, SAN YSIDRO, CA 92173(619) 662-4100(619) 600-4870 Get Directions Write a Review

NPPES record last updated: September 16, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 16, 2026, Jul 16, 2026, Aug 26, 2020 and 2 more (5 updates tracked since 2019).

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About Dr. Thomas Beesley D.o. NPPES

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

DR. THOMAS BEESLEY D.O. (NPI 1306226881) is an individual psychiatry provider in San Ysidro, California, licensed in California (20A25629) and active in the NPI registry since June 2015.

NPPES Registry Identity

NPI1306226881

Entity TypeIndividualMale

Primary Taxonomy2084P0800X

Provider Legal NameDR. THOMAS BEESLEYCredential: D.O.

Location Address1666 PRECISION PARK LNSan Ysidro, CA 92173-1346

Mailing Address1666 Precision Park LnSan Ysidro, CA 92173-1346 · (619) 662-4100 · Fax (619) 600-4870

Phone(619) 662-4100

Fax(619) 600-4870

Sole ProprietorNo

Enumeration DateJune 1, 2015

Last NPPES UpdateSeptember 16, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 16, 2026

✔ NPI 1306226881 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

Licenses✔ Licensed in CA · 20A25629✔ Licensed in IN · 02005251A✔ Licensed in MA · 279138

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1666 PRECISION PARK LN, San Ysidro, CA 92173

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Other Providers at the Same Location NPPES 20

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

CENTRO DE SALUD DE LA COMUNIDAD DE SAN YSIDRO, INC.

Clinic/Center (Adolescent and Children Mental Health)

1666 PRECISION PARK LN
SAN DIEGO, CA 92173

San Diego County (619) 428-1330

MS. GRACIELA CASTELLANOS MA IN MFT

Counselor

1666 PRECISION PARK LN
SAN YSIDRO, CA 92173

San Diego County (619) 662-4100

MICHELLE STEPHANIE LOUGH

Family Medicine

1666 PRECISION PARK LN
SAN YSIDRO, CA 92173

San Diego County (619) 662-4100

MARGARITA CASTELLANOS PALAZUELOS

Social Worker (Clinical)

1666 PRECISION PARK LN
SAN YSIDRO, CA 92173

San Diego County (619) 428-5533

ARI AZANI

Psychiatry & Neurology (Child & Adolescent Psychiatry)

1666 PRECISION PARK LN
SAN YSIDRO, CA 92173

San Diego County (619) 662-4100

RITO A LOPEZ NURSE PRACTITIONER

Nurse Practitioner (Family)

1666 PRECISION PARK LN
SAN YSIDRO, CA 92173

San Diego County (619) 662-4100

CENTRO DE SALUD DE LA COMUNIDAD DE SAN YSIDRO, INC.

Clinic/Center (Federally Qualified Health Center (FQHC))

1666 PRECISION PARK LN
SAN DIEGO, CA 92173

San Diego County (619) 662-4100

THANOS GEORGE ROSSOPOULOS MD

Psychiatry & Neurology (Psychiatry)

1666 PRECISION PARK LN
SAN YSIDRO, CA 92173

San Diego County (619) 662-4100

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 Thomas Beesley's NPI number?

The NPI number for Thomas Beesley is 1306226881. It was assigned to this individual provider in the NPPES registry on June 1, 2015.

Where is Thomas Beesley located?

Thomas Beesley practices at 1666 Precision Park Ln, San Ysidro, CA 92173. The listed phone number is (619) 662-4100.

What is Thomas Beesley's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

When was this NPI record last updated?

The NPPES record for Thomas Beesley was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.