Jessica Williams
NPI 1255749636 · Case Manager/Care Coordinator · Rancho Cucamonga, CA
Jessica Williams is a Case Manager/Care Coordinator provider in Rancho Cucamonga, CA (NPI 1255749636).
Provider details
- NPI number
- 1255749636
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
Mailing address
Registry dates
- Enumerated
- 2014-07-29
- Last updated
- 2016-11-17
Frequently asked questions
- What is Jessica Williams's NPI number?
- Jessica Williams's National Provider Identifier (NPI) is 1255749636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica Williams's specialty?
- Jessica Williams is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Jessica Williams located?
- Jessica Williams's practice location on file with NPPES is 9500 New Haven Avenue, Rancho Cucamonga, CA 91730.
- What is Jessica Williams's phone number?
- The practice phone number listed in the NPPES registry for Jessica Williams is (909) 980-6700.
- Is Jessica Williams's NPI active?
- Yes — Jessica Williams's NPI (1255749636) is active in the NPPES registry as of the last update on 2016-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.