SEAN SULLIVAN
NPI 1356049191
Counselor - Addiction (Substance Use Disorder) in Clearlake Oaks, CA

Q: What is Sean Sullivan's NPI number?

The NPI number for Sean Sullivan is 1356049191. It was assigned to this individual provider in the NPPES registry on February 21, 2023.

Q: What is Sean Sullivan'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 Sean Sullivan was last updated on February 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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 February 21, 2023

14715 E. HWY 20, CLEARLAKE OAKS, CA 95423(707) 998-1800(707) 998-0122 Get Directions Write a Review

NPPES record last updated: February 21, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Sean Sullivan NPPES

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

SEAN SULLIVAN (NPI 1356049191) is an individual addiction (substance use disorder) provider in Clearlake Oaks, California, licensed in California (17429) and active in the NPI registry since February 2023.

NPPES Registry Identity

NPI1356049191

Entity TypeIndividualMale

Primary Taxonomy101YA0400X

Provider Legal NameSEAN SULLIVAN

Location Address14715 E. HWY 20Clearlake Oaks, CA 95423

Mailing AddressPo Box 366Clearlake Oaks, CA 95423-0366 · (707) 998-1800 · Fax (707) 998-0122

Phone(707) 998-1800

Fax(707) 998-0122

Sole ProprietorNo

Enumeration DateFebruary 21, 2023

NPPES CertifiedFebruary 17, 2023

✔ NPI 1356049191 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 · 17429

14715 E. HWY 20, Clearlake Oaks, CA 95423

Open in Google Maps ↗

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.

CHARLENE JEAN DUNCAN

Case Manager/Care Coordinator

14715 E. HWY 20
CLEARLAKE OAKS, CA 95423

Lake County (707) 998-1800

TIFFANY FAWN BOGGS

Case Manager/Care Coordinator

14715 E. HWY 20, 14725 CATHOLIC CHURCH RD.
CLEARLAKE OAKS, CA 95423

Lake County (707) 998-1800

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 Sean Sullivan's NPI number?

The NPI number for Sean Sullivan is 1356049191. It was assigned to this individual provider in the NPPES registry on February 21, 2023.

Where is Sean Sullivan located?

Sean Sullivan practices at 14715 E. Hwy 20, Clearlake Oaks, CA 95423. The listed phone number is (707) 998-1800.

What is Sean Sullivan'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 Sean Sullivan was last updated on February 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.