Jonathan Duke
NPI 1497536783 · Addiction (Substance Use Disorder) Counselor · Concord, CA
Jonathan Duke is a Addiction (Substance Use Disorder) Counselor provider in Concord, CA (NPI 1497536783).
Provider details
- NPI number
- 1497536783
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
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
2 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
- 2023-10-11
- Last updated
- 2023-10-11
- Certified
- 2023-10-11
Frequently asked questions
- What is Jonathan Duke's NPI number?
- Jonathan Duke's National Provider Identifier (NPI) is 1497536783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Duke's specialty?
- Jonathan Duke is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Jonathan Duke located?
- Jonathan Duke's practice location on file with NPPES is 1470 Civic Ct, Concord, CA 94520-5290.
- What is Jonathan Duke's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Duke is (925) 270-1444.
- Is Jonathan Duke's NPI active?
- Yes — Jonathan Duke's NPI (1497536783) is active in the NPPES registry as of the last update on 2023-10-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.