Justin Zupfer
NPI 1588370340 · Addiction (Substance Use Disorder) Counselor · Antioch, CA
Justin Zupfer is a Addiction (Substance Use Disorder) Counselor provider in Antioch, CA (NPI 1588370340).
Provider details
- NPI number
- 1588370340
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- 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
3 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
- 2023-01-25
- Last updated
- 2023-01-25
- Certified
- 2023-01-25
Frequently asked questions
- What is Justin Zupfer's NPI number?
- Justin Zupfer's National Provider Identifier (NPI) is 1588370340, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Zupfer's specialty?
- Justin Zupfer is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Justin Zupfer located?
- Justin Zupfer's practice location on file with NPPES is 1408 a St, Antioch, CA 94509-2331.
- What is Justin Zupfer's phone number?
- The practice phone number listed in the NPPES registry for Justin Zupfer is (925) 978-2873.
- Is Justin Zupfer's NPI active?
- Yes — Justin Zupfer's NPI (1588370340) is active in the NPPES registry as of the last update on 2023-01-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.