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GWENDOLYN ALDEN DEAN LCSW
NPI 1679905590
Social Worker - Clinical in Napa, CA

Active since August 01, 2013PECOS Enrolled
2751 NAPA VALLEY CORPORATE DR STE A211, NAPA, CA 94558(707) 259-8193(707) 265-4717 Get Directions Write a Review

NPPES record last updated: February 24, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gwendolyn Alden Dean Lcsw NPPES

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

GWENDOLYN ALDEN DEAN LCSW (NPI 1679905590) is an individual clinical provider in Napa, California, licensed in California (81196) and active in the NPI registry since August 2013. She is enrolled in Medicare PECOS and maintains a secondary practice location in Napa.

NPPES Registry Identity

NPI1679905590
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameGWENDOLYN ALDEN DEANCredential: LCSW
Location Address2751 NAPA VALLEY CORPORATE DR STE A211Napa, CA 94558-6216
Mailing Address2751 Napa Valley Corporate Dr Ste A211Napa, CA 94558-6216 · (707) 259-8193 · Fax (707) 265-4717
Phone(707) 259-8193
Fax(707) 265-4717
Sole ProprietorNo
Enumeration DateAugust 1, 2013
Last NPPES UpdateFebruary 24, 2021
NPPES CertifiedNovember 13, 2020
✔ NPI 1679905590 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 81196
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.
2751 NAPA VALLEY CORPORATE DR STE A211, Napa, CA 94558
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Other Names 1

Former Name (1)Gwendolyn Alden Haun

Secondary Practice Location 1

Location 12261 Elm St Bldg ANapa, CA 94559-3721 · Phone (707) 299-1760

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gwendolyn Alden Dean Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gwendolyn Dean reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Napa
Same address
Community/Behavioral Health
2751 NAPA VALLEY CORPORATE DR, BLDGS - A & B
Napa, CA 94558
  • Reassigned Medicare billing, California enrollment
  • 39 clinicians in this Medicare group
NPI 1164572426 (707) 253-4662

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94558 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $65.08 – $192.16
Typical copayment $0.00 (range $16.27 – $48.04)
Most-billed visit code NA
Established Patient
$80.32 typical visit price
range $21.86 – $157.83
Typical copayment $20.08 (range $5.46 – $39.45)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Gwendolyn Dean's NPI number?

The NPI number for Gwendolyn Dean is 1679905590. It was assigned to this individual provider in the NPPES registry on August 1, 2013. The provider is also known as Gwendolyn Alden Haun.

Where is Gwendolyn Dean located?

Gwendolyn Dean practices at 2751 Napa Valley Corporate Dr Ste A211, Napa, CA 94558. The listed phone number is (707) 259-8193.

What is Gwendolyn Dean's specialty?

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

Is Gwendolyn Dean enrolled in Medicare?

Yes. Gwendolyn Dean is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gwendolyn Dean's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gwendolyn Dean reassigns Medicare benefits to County Of Napa (Napa, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gwendolyn Dean's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gwendolyn Dean was last updated on February 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.