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John Hahn
NPI 1831734110 · Behavior Technician · Fairfield, CA
John Hahn is a Behavior Technician provider in Fairfield, CA (NPI 1831734110).
Provider details
- NPI number
- 1831734110
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(59/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
801 Jefferson St Ste 45&6
Fairfield, CA 94533-5557
Phone: (707) 720-3869
Street-level locationGet directions
Mailing address
16782 Von Karman Ave Ste 11
Irvine, CA 92606-2417
Registry dates
- Enumerated
- 2019-11-11
- Last updated
- 2019-11-11
Frequently asked questions
- What is John Hahn's NPI number?
- John Hahn's National Provider Identifier (NPI) is 1831734110, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hahn's specialty?
- John Hahn is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is John Hahn located?
- John Hahn's practice location on file with NPPES is 801 Jefferson St Ste 45&6, Fairfield, CA 94533-5557.
- What is John Hahn's phone number?
- The practice phone number listed in the NPPES registry for John Hahn is (707) 720-3869.
- Is John Hahn's NPI active?
- Yes — John Hahn's NPI (1831734110) is active in the NPPES registry as of the last update on 2019-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.