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

ISABEL ARMSTRONG
NPI 1598670390
Counselor - Addiction (Substance Use Disorder) in Berkeley, CA

Active since August 17, 2026
1816 SCENIC AVE, BERKELEY, CA 94709(510) 548-7270 Get Directions Write a Review

NPPES record added: August 17, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Isabel Armstrong NPPES

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

ISABEL ARMSTRONG (NPI 1598670390) is an individual addiction (substance use disorder) provider in Berkeley, California and active in the NPI registry since August 2026.

NPPES Registry Identity

NPI1598670390
Entity TypeIndividualFemale
Primary Taxonomy101YA0400X
Provider Legal NameISABEL ARMSTRONG
Location Address1816 SCENIC AVEBerkeley, CA 94709-1324
Mailing Address1190 Shattuck AveBerkeley, CA 94707-2635 · (650) 924-7146
Phone(510) 548-7270
Sole ProprietorNo
Enumeration DateAugust 17, 2026
NPPES CertifiedAugust 17, 2026
✔ NPI 1598670390 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
1816 SCENIC AVE, Berkeley, CA 94709
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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.

JOSEPH SORG LVN
Licensed Vocational Nurse
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 526-6200
MRS. JAN AMBER STEWARD-DAVIS MFT
Marriage & Family Therapist
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 548-7270
DOMINIQUE CREER
Counselor (Addiction (Substance Use Disorder))
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (866) 772-8491
JOHN BREWER
Counselor (Addiction (Substance Use Disorder))
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 548-7270
HALEY ROSE WILLIAMS
Counselor (Addiction (Substance Use Disorder))
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 548-7270
MS. VICTORIA ROSE LEFF
Social Worker (Clinical)
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 548-7270
DANIEL TIMOTHY KAPSON
Counselor (Addiction (Substance Use Disorder))
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 548-7270
LISA BRENNAN RN
Registered Nurse
1816 SCENIC AVE
BERKELEY, CA 94709
Alameda County (510) 526-6200

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 Isabel Armstrong's NPI number?

The NPI number for Isabel Armstrong is 1598670390. It was assigned to this individual provider in the NPPES registry on August 17, 2026.

Where is Isabel Armstrong located?

Isabel Armstrong practices at 1816 Scenic Ave, Berkeley, CA 94709. The listed phone number is (510) 548-7270.

What is Isabel Armstrong'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 Isabel Armstrong was last updated on August 17, 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.