Diamond Mcmillian, LCSW
NPI 1366140683 · Clinical Social Worker · San Pablo, CA
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diamond Mcmillian, LCSW is a Clinical Social Worker provider in San Pablo, CA (NPI 1366140683).
Provider details
- NPI number
- 1366140683
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 112881 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-02-16
- Last updated
- 2023-02-16
- Certified
- 2023-02-16
Frequently asked questions
- What is Diamond Mcmillian's NPI number?
- Diamond Mcmillian's National Provider Identifier (NPI) is 1366140683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diamond Mcmillian's specialty?
- Diamond Mcmillian is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Diamond Mcmillian located?
- Diamond Mcmillian's practice location on file with NPPES is 2830 21st St Apt 8, San Pablo, CA 94806-2402.
- What is Diamond Mcmillian's phone number?
- The practice phone number listed in the NPPES registry for Diamond Mcmillian is (415) 515-5550.
- Does Diamond Mcmillian accept Medicare?
- Diamond Mcmillian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diamond Mcmillian's NPI active?
- Yes — Diamond Mcmillian's NPI (1366140683) is active in the NPPES registry as of the last update on 2023-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.