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NATHANAEL CHOISSER
NPI 1770437717
Counselor - Addiction (Substance Use Disorder) in Berkeley, CA

Active since February 25, 2026
1835 ALLSTON WAY, BERKELEY, CA 94703(510) 666-9552 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Nathanael Choisser NPPES

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

NATHANAEL CHOISSER (NPI 1770437717) is an individual addiction (substance use disorder) provider in Berkeley, California and active in the NPI registry since February 2026.

NPPES Registry Identity

NPI1770437717
Entity TypeIndividualMale
Primary Taxonomy101YA0400X
Provider Legal NameNATHANAEL CHOISSER
Location Address1835 ALLSTON WAYBerkeley, CA 94703-1764
Mailing Address1835 Allston WayBerkeley, CA 94703-1764 · (510) 666-9552
Phone(510) 666-9552
Sole ProprietorNo
Enumeration DateFebruary 25, 2026
NPPES CertifiedFebruary 25, 2026
✔ NPI 1770437717 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
1835 ALLSTON WAY, Berkeley, CA 94703
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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.

SONITHIDA CHHIM UK
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
RUDY VICTOR SALDANA
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
GERALD ROSS CYPERT II
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
ADELYN HELFAND
Marriage & Family Therapist
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
SHEB ISBELL
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
TORREY LEE CASSIMUS
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
PAULETTE REGINA VILLA
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552
JOSE LUIS HURTADO
Counselor (Addiction (Substance Use Disorder))
1835 ALLSTON WAY
BERKELEY, CA 94703
Alameda County (510) 666-9552

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 Nathanael Choisser's NPI number?

The NPI number for Nathanael Choisser is 1770437717. It was assigned to this individual provider in the NPPES registry on February 25, 2026.

Where is Nathanael Choisser located?

Nathanael Choisser practices at 1835 Allston Way, Berkeley, CA 94703. The listed phone number is (510) 666-9552.

What is Nathanael Choisser'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 Nathanael Choisser was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.