IndividualActive
Michelle Williams
NPI 1225219413 · Case Manager/Care Coordinator · Antioch, CA
Michelle Williams is a Case Manager/Care Coordinator provider in Antioch, CA (NPI 1225219413).
Provider details
- NPI number
- 1225219413
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(82/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
512 W 5th St
Antioch, CA 94509-1236
Phone: (925) 465-1381
Street-level locationGet directions
Mailing address
2648 International Blvd
Oakland, CA 94601-1506
Registry dates
- Enumerated
- 2007-11-16
- Last updated
- 2007-11-16
Frequently asked questions
- What is Michelle Williams's NPI number?
- Michelle Williams's National Provider Identifier (NPI) is 1225219413, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michelle Williams's specialty?
- Michelle Williams is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Michelle Williams located?
- Michelle Williams's practice location on file with NPPES is 512 W 5th St, Antioch, CA 94509-1236.
- What is Michelle Williams's phone number?
- The practice phone number listed in the NPPES registry for Michelle Williams is (925) 465-1381.
- Is Michelle Williams's NPI active?
- Yes — Michelle Williams's NPI (1225219413) is active in the NPPES registry as of the last update on 2007-11-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.