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DIAMOND SHARELLE MCMILLIAN LCSW
NPI 1366140683
Social Worker - Clinical in San Pablo, CA

Active since February 16, 2023PECOS Enrolled
2830 21ST ST APT 8, SAN PABLO, CA 94806(415) 515-5550 Get Directions Write a Review

NPPES record last updated: February 16, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Diamond Sharelle Mcmillian Lcsw NPPES

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

DIAMOND SHARELLE MCMILLIAN LCSW (NPI 1366140683) is an individual clinical provider in San Pablo, California, licensed in California (112881) and active in the NPI registry since February 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1366140683
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameDIAMOND SHARELLE MCMILLIANCredential: LCSW
Location Address2830 21ST ST APT 8San Pablo, CA 94806-2402
Mailing Address2830 21st St Apt 8San Pablo, CA 94806-2402 · (415) 515-5550
Phone(415) 515-5550
Sole ProprietorYes
Enumeration DateFebruary 16, 2023
NPPES CertifiedFebruary 16, 2023
✔ NPI 1366140683 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 · 112881
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.
2830 21ST ST APT 8, San Pablo, CA 94806
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Diamond Sharelle Mcmillian 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 Diamond Mcmillian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2.5 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555

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 94806 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 Diamond Mcmillian's NPI number?

The NPI number for Diamond Mcmillian is 1366140683. It was assigned to this individual provider in the NPPES registry on February 16, 2023.

Where is Diamond Mcmillian located?

Diamond Mcmillian practices at 2830 21st St Apt 8, San Pablo, CA 94806. The listed phone number is (415) 515-5550.

What is Diamond Mcmillian's specialty?

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

Is Diamond Mcmillian enrolled in Medicare?

Yes. Diamond Mcmillian is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Diamond Mcmillian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Diamond Mcmillian reassigns Medicare benefits to Permanente Medical Group Inc (Richmond, 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 Diamond Mcmillian'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 Diamond Mcmillian was last updated on February 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.