JEFFREY MATTHEW ESSEX CADPT16957
NPI 1811755531
Counselor - Addiction (Substance Use Disorder) in San Mateo, CA

Q: What is Jeffrey Essex's NPI number?

The NPI number for Jeffrey Essex is 1811755531. It was assigned to this individual provider in the NPPES registry on March 7, 2024.

Q: What is Jeffrey Essex's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

Q: When was this NPI record last updated?

The NPPES record for Jeffrey Essex was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 March 07, 2024

2251 PALM AVE # 1, SAN MATEO, CA 94403(650) 513-6500(650) 513-6500 Get Directions Write a Review

NPPES record last updated: June 3, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 3, 2025, Mar 7, 2024 (2 updates tracked since 2024).

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About Jeffrey Matthew Essex Cadpt16957 NPPES

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

JEFFREY MATTHEW ESSEX CADPT16957 (NPI 1811755531) is an individual addiction (substance use disorder) provider in San Mateo, California, licensed in California (16957) and active in the NPI registry since March 2024.

NPPES Registry Identity

NPI1811755531

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameJEFFREY MATTHEW ESSEXCredential: CADPT16957

Location Address2251 PALM AVE # 1San Mateo, CA 94403-1814

Mailing Address2251 Palm Ave # 1San Mateo, CA 94403-1814 · (650) 513-6500 · Fax (650) 513-6500

Phone(650) 513-6500

Fax(650) 513-6500

Sole ProprietorNo

Enumeration DateMarch 7, 2024

Last NPPES UpdateJune 3, 20252 updates tracked since enumeration

NPPES CertifiedJune 3, 2025

✔ NPI 1811755531 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

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

Taxonomy Code101YA0400X

License✔ Licensed in CA · 16957

2251 PALM AVE # 1, San Mateo, CA 94403

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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 Jeffrey Essex's NPI number?

The NPI number for Jeffrey Essex is 1811755531. It was assigned to this individual provider in the NPPES registry on March 7, 2024.

Where is Jeffrey Essex located?

Jeffrey Essex practices at 2251 Palm Ave # 1, San Mateo, CA 94403. The listed phone number is (650) 513-6500.

What is Jeffrey Essex's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Addiction (Substance Use Disorder), with taxonomy code 101YA0400X.

When was this NPI record last updated?

The NPPES record for Jeffrey Essex was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.