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THOMAS DAVID SEIFERT CADC-I
NPI 1932069721
Counselor - Addiction (Substance Use Disorder) in Costa Mesa, CA

Active since November 13, 2025
1640 SUPERIOR AVE, COSTA MESA, CA 92627(916) 358-0757 Get Directions Write a Review

NPPES record last updated: January 8, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 8, 2026, Nov 13, 2025 (2 updates tracked since 2025).

About Thomas David Seifert Cadc-i NPPES

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

THOMAS DAVID SEIFERT CADC-I (NPI 1932069721) is an individual addiction (substance use disorder) provider in Costa Mesa, California, licensed in California (CI49561125) and active in the NPI registry since November 2025.

NPPES Registry Identity

NPI1932069721
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameTHOMAS DAVID SEIFERTCredential: CADC-I
Location Address1640 SUPERIOR AVECosta Mesa, CA 92627-3652
Mailing Address575 W 19th St Apt H172Costa Mesa, CA 92627-5052 · (916) 358-0757
Phone(916) 358-0757
Sole ProprietorNo
Enumeration DateNovember 13, 2025
Last NPPES UpdateJanuary 8, 20262 updates tracked since enumeration
NPPES CertifiedJanuary 8, 2026
✔ NPI 1932069721 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 · CI49561125
1640 SUPERIOR AVE, Costa Mesa, CA 92627
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Other Providers at the Same Location NPPES 12

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

NATHANIEL LITTLE
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (916) 704-6141
CHARLES THOMAS HUDAK CADC III
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (714) 348-6611
TAUPATIGA OMAR AVEI
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (310) 343-2567
ROBERT KAHALY
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (718) 619-0240
DYLAN JAMES STONE
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (941) 587-3416
GEORGE JOSEPH VITOLO
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (949) 338-5431
THOMAS NEALIS
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (855) 202-2138
ROBERT MO CADC II
Counselor (Addiction (Substance Use Disorder))
1640 SUPERIOR AVE
COSTA MESA, CA 92627
Orange County (805) 748-2921

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 Seifert's NPI number?

The NPI number for Thomas Seifert is 1932069721. It was assigned to this individual provider in the NPPES registry on November 13, 2025.

Where is Thomas Seifert located?

Thomas Seifert practices at 1640 Superior Ave, Costa Mesa, CA 92627. The listed phone number is (916) 358-0757.

What is Thomas Seifert'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 Thomas Seifert was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.