Kathleen Chan
NPI 1417255845 · Addiction (Substance Use Disorder) Counselor · Antioch, CA
Kathleen Chan is a Addiction (Substance Use Disorder) Counselor provider in Antioch, CA (NPI 1417255845).
Provider details
- NPI number
- 1417255845
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
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
15 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
- 2011-03-09
- Last updated
- 2011-03-09
Frequently asked questions
- What is Kathleen Chan's NPI number?
- Kathleen Chan's National Provider Identifier (NPI) is 1417255845, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Chan's specialty?
- Kathleen Chan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Kathleen Chan located?
- Kathleen Chan's practice location on file with NPPES is 3707 Sunset Ln, Antioch, CA 94509-6101.
- What is Kathleen Chan's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Chan is (925) 522-0124.
- Is Kathleen Chan's NPI active?
- Yes — Kathleen Chan's NPI (1417255845) is active in the NPPES registry as of the last update on 2011-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.