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DR. VIVIAN DOROTHY MITCHELL DSW, LCSW, MSW
NPI 1528857547
Social Worker - Clinical in Vallejo, CA

Active since May 05, 2025PECOS Enrolled
PO BOX 9065, VALLEJO, CA 94591(707) 712-2905 Get Directions Write a Review

NPPES record last updated: May 5, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Vivian Dorothy Mitchell Dsw, Lcsw, Msw NPPES

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

DR. VIVIAN DOROTHY MITCHELL DSW, LCSW, MSW (NPI 1528857547) is an individual clinical provider in Vallejo, California, licensed in California (129364) and active in the NPI registry since May 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1528857547
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDR. VIVIAN DOROTHY MITCHELLCredential: DSW, LCSW, MSW
Location AddressPO BOX 9065Vallejo, CA 94591-9065
Mailing AddressPo Box 9065Vallejo, CA 94591-9065 · (707) 712-2905
Phone(707) 712-2905
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMay 5, 2025
NPPES CertifiedMay 5, 2025
✔ NPI 1528857547 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 · 129364
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.
PO BOX 9065, Vallejo, CA 94591
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Other Names 1

Former Name (1)Ms. Vivian Dorothy Lewis

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Vivian Dorothy Mitchell Dsw, Lcsw, Msw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446741532
PECOS Enrollment IDI20251117002930
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 Vivian Mitchell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
4.3 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000

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 94591 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 $65.02 – $191.95
Typical copayment $0.00 (range $16.25 – $47.98)
Most-billed visit code NA
Established Patient
$80.24 typical visit price
range $21.86 – $157.69
Typical copayment $20.06 (range $5.46 – $39.42)
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 Vivian Mitchell's NPI number?

The NPI number for Vivian Mitchell is 1528857547. It was assigned to this individual provider in the NPPES registry on May 5, 2025. The provider is also known as Ms. Vivian Dorothy Lewis.

Where is Vivian Mitchell located?

Vivian Mitchell practices at PO Box 9065, Vallejo, CA 94591. The listed phone number is (707) 712-2905.

What is Vivian Mitchell's specialty?

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

Is Vivian Mitchell enrolled in Medicare?

Yes. Vivian Mitchell is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Vivian Mitchell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vivian Mitchell reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, 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 Vivian Mitchell'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 Vivian Mitchell was last updated on May 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.