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Ruth Chan
NPI 1184141517 · Case Manager/Care Coordinator · Ontario, CA
Ruth Chan is a Case Manager/Care Coordinator provider in Ontario, CA (NPI 1184141517).
Provider details
- NPI number
- 1184141517
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
Profile Score
Established profile(63/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
1556 S. Sultana Ave
Ontario, CA 91761
Phone: (909) 418-6923
Fax: (909) 418-6937
Street-level locationGet directions
Mailing address
1556 S Sultana Ave
Ontario, CA 91761-4238
Registry dates
- Enumerated
- 2017-08-25
- Last updated
- 2022-07-21
Frequently asked questions
- What is Ruth Chan's NPI number?
- Ruth Chan's National Provider Identifier (NPI) is 1184141517, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruth Chan's specialty?
- Ruth Chan is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Ruth Chan located?
- Ruth Chan's practice location on file with NPPES is 1556 S. Sultana Ave, Ontario, CA 91761.
- What is Ruth Chan's phone number?
- The practice phone number listed in the NPPES registry for Ruth Chan is (909) 418-6923.
- Is Ruth Chan's NPI active?
- Yes — Ruth Chan's NPI (1184141517) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.