John Hamner, CADC I
NPI 1417189879 · Addiction (Substance Use Disorder) Counselor · Quincy, CA
John Hamner, CADC I is a Addiction (Substance Use Disorder) Counselor provider in Quincy, CA (NPI 1417189879).
Provider details
- NPI number
- 1417189879
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CADC I
- Sex
- Male
- Sole proprietor
- No
- License
- CICA00331218 (CA)
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
16 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2009-08-19
- Last updated
- 2019-08-13
Frequently asked questions
- What is John Hamner's NPI number?
- John Hamner's National Provider Identifier (NPI) is 1417189879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hamner's specialty?
- John Hamner is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is John Hamner located?
- John Hamner's practice location on file with NPPES is 65 Main St, Quincy, CA 95971-9494.
- What is John Hamner's phone number?
- The practice phone number listed in the NPPES registry for John Hamner is (530) 283-2465.
- Is John Hamner's NPI active?
- Yes — John Hamner's NPI (1417189879) is active in the NPPES registry as of the last update on 2019-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.