1. Home
  2. Directory
  3. California
  4. Oakland
  5. Social Worker
  6. NPI Profile

MS. MELANIE DIANNE PETERSEN
NPI 1346891512
Social Worker - Clinical in Oakland, CA

Active since September 27, 2019PECOS EnrolledAccepts Medicare Assignment
6885 CHABOT RD, OAKLAND, CA 94618(858) 349-8838 Get Directions Write a Review

NPPES record last updated: October 28, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 18, 2025, Sep 27, 2019 (2 updates tracked since 2019).

About Ms. Melanie Dianne Petersen NPPES

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

MS. MELANIE DIANNE PETERSEN (NPI 1346891512) is an individual clinical provider in Oakland, California, licensed in California (134710) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1346891512
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. MELANIE DIANNE PETERSEN
Location Address6885 CHABOT RDOakland, CA 94618-1919
Mailing Address6885 Chabot RdOakland, CA 94618-1919 · (858) 349-8838
Phone(858) 349-8838
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateSeptember 27, 2019
Last NPPES UpdateOctober 28, 20252 updates tracked since enumeration
NPPES CertifiedOctober 28, 2025
✔ NPI 1346891512 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 · 134710
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.
6885 CHABOT RD, Oakland, CA 94618
Open in Google Maps ↗

Other Names 1

Other Name (5)Ms. Melanie Dianne Petersen Tatum

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Melanie Dianne Petersen is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284125386
PECOS Enrollment IDI20251117003431
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 Melanie Petersen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Native American Health Center, Inc
5.0 mi
Federally Qualified Health Center (FQHC)
2950 INTERNATIONAL BLVD
Oakland, CA 94601
  • Reassigned Medicare billing, California enrollment
  • 71 clinicians in this Medicare group
NPI 1619147030 (510) 485-5906

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 94618 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 $69.00 – $202.35
Typical copayment $0.00 (range $17.25 – $50.58)
Most-billed visit code NA
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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 Melanie Petersen's NPI number?

The NPI number for Melanie Petersen is 1346891512. It was assigned to this individual provider in the NPPES registry on September 27, 2019. The provider is also known as Ms. Melanie Dianne Petersen Tatum.

Where is Melanie Petersen located?

Melanie Petersen practices at 6885 Chabot Rd, Oakland, CA 94618. The listed phone number is (858) 349-8838.

What is Melanie Petersen's specialty?

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

Is Melanie Petersen enrolled in Medicare?

Yes. Melanie Petersen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Melanie Petersen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melanie Petersen reassigns Medicare benefits to Native American Health Center, Inc (Oakland, 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 Melanie Petersen'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 Melanie Petersen was last updated on October 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.