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SIENNA SUMMER JOHNSTON
NPI 1548513872
Social Worker - Clinical in Santa Rosa, CA

Active since October 24, 2012
2500 VALLEJO ST, SUITE 200, SANTA ROSA, CA 95405(707) 546-7907(707) 546-1544 Get Directions Write a Review

NPPES record last updated: October 24, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Sienna Summer Johnston NPPES

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

SIENNA SUMMER JOHNSTON (NPI 1548513872) is an individual clinical provider in Santa Rosa, California and active in the NPI registry since October 2012.

NPPES Registry Identity

NPI1548513872
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameSIENNA SUMMER JOHNSTON
Location Address2500 VALLEJO ST, SUITE 200Santa Rosa, CA 95405-6957
Mailing Address2500 Vallejo St, Suite 200Santa Rosa, CA 95405-6957 · (707) 546-7907 · Fax (707) 546-1544
Phone(707) 546-7907
Fax(707) 546-1544
Sole ProprietorNo
Enumeration DateOctober 24, 2012
✔ NPI 1548513872 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
2500 VALLEJO ST, Santa Rosa, CA 95405
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Other Providers at the Same Location NPPES 3

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

CHARMAINE RABLE MFT
Marriage & Family Therapist
2500 VALLEJO ST, SUITE 200
SANTA ROSA, CA 95405
Sonoma County (707) 548-8493
DENE CARROLL LCSW
Social Worker (Clinical)
2500 VALLEJO ST
SANTA ROSA, CA 95405
Sonoma County (707) 297-3088
ROBERT DARRELL DURBOROUGH MFT
Marriage & Family Therapist
2500 VALLEJO ST, SUITE# 200
SANTA ROSA, CA 95405
Sonoma County (707) 548-3634

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 Sienna Johnston's NPI number?

The NPI number for Sienna Johnston is 1548513872. It was assigned to this individual provider in the NPPES registry on October 24, 2012.

Where is Sienna Johnston located?

Sienna Johnston practices at 2500 Vallejo St Suite 200, Santa Rosa, CA 95405. The listed phone number is (707) 546-7907.

What is Sienna Johnston's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

When was this NPI record last updated?

The NPPES record for Sienna Johnston was last updated on October 24, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.