Rebecca Karste
NPI 1043498629 · Addiction (Substance Use Disorder) Counselor · Antioch, CA
Rebecca Karste is a Addiction (Substance Use Disorder) Counselor provider in Antioch, CA (NPI 1043498629).
Provider details
- NPI number
- 1043498629
- 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
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
Mailing address
Registry dates
- Enumerated
- 2008-02-05
- Last updated
- 2008-02-05
Frequently asked questions
- What is Rebecca Karste's NPI number?
- Rebecca Karste's National Provider Identifier (NPI) is 1043498629, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rebecca Karste's specialty?
- Rebecca Karste is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Rebecca Karste located?
- Rebecca Karste's practice location on file with NPPES is 1915 D St, Antioch, CA 94509-2571.
- What is Rebecca Karste's phone number?
- The practice phone number listed in the NPPES registry for Rebecca Karste is (925) 754-3673.
- Is Rebecca Karste's NPI active?
- Yes — Rebecca Karste's NPI (1043498629) is active in the NPPES registry as of the last update on 2008-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.