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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

CAITLYN THIELE WESTERBECK
NPI 1801794730
Counselor - Addiction (Substance Use Disorder) in Long Beach, CA

Active since October 29, 2026
3939 ATLANTIC AVE STE 102, LONG BEACH, CA 90807(562) 263-4733 Get Directions Write a Review

NPPES record added: October 29, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Caitlyn Thiele Westerbeck NPPES

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

CAITLYN THIELE WESTERBECK (NPI 1801794730) is an individual addiction (substance use disorder) provider in Long Beach, California and active in the NPI registry since October 2026.

NPPES Registry Identity

NPI1801794730
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameCAITLYN THIELE WESTERBECK
Location Address3939 ATLANTIC AVE STE 102Long Beach, CA 90807-3535
Mailing Address18504 Beach Blvd Unit 331Huntington Beach, CA 92648-0908 · (586) 382-8262
Phone(562) 263-4733
Sole ProprietorYes
Enumeration DateOctober 29, 2026
NPPES CertifiedOctober 29, 2026
✔ NPI 1801794730 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
3939 ATLANTIC AVE STE 102, Long Beach, CA 90807
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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.

ELIEZEL RIVERA
Counselor (Addiction (Substance Use Disorder))
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 263-4733
LORI WAY M.A.
Marriage & Family Therapist
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 249-5731
CHAD T SJULE RAC
Counselor (Addiction (Substance Use Disorder))
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 350-9346
DESIREE ROSAS
Counselor (Addiction (Substance Use Disorder))
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 471-7710
MS. STEPHANIE LYN KOONTZ
Counselor (Addiction (Substance Use Disorder))
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 473-0830
NICHOLAS MAHONEY REBEL AMFT
Marriage & Family Therapist
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 471-7710
DR. DIANA KANG PSYD
Psychologist (Clinical)
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 473-0827
FERNANDO DAVID GUERRERO MONTIEL
Counselor (Addiction (Substance Use Disorder))
3939 ATLANTIC AVE STE 102
LONG BEACH, CA 90807
Los Angeles County (562) 263-4733

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 Caitlyn Thiele Westerbeck's NPI number?

The NPI number for Caitlyn Thiele Westerbeck is 1801794730. It was assigned to this individual provider in the NPPES registry on October 29, 2026.

Where is Caitlyn Thiele Westerbeck located?

Caitlyn Thiele Westerbeck practices at 3939 Atlantic Ave Ste 102, Long Beach, CA 90807. The listed phone number is (562) 263-4733.

What is Caitlyn Thiele Westerbeck'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 Caitlyn Thiele Westerbeck was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.