IndividualActive
John Hessler, PH.D.
NPI 1548306269 · Psychologist · Chula Vista, CA
John Hessler, PH.D. is a Psychologist provider in Chula Vista, CA (NPI 1548306269).
Provider details
- NPI number
- 1548306269
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- PSY 9643 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
815 3rd Ave
107
Chula Vista, CA 91911-1307
Phone: (619) 426-1555
Fax: (619) 426-1906
Street-level locationGet directions
Mailing address
3329 2nd Ave
San Diego, CA 92103-5611
Registry dates
- Enumerated
- 2007-01-29
- Last updated
- 2007-07-09
Frequently asked questions
- What is John Hessler's NPI number?
- John Hessler's National Provider Identifier (NPI) is 1548306269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hessler's specialty?
- John Hessler is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Hessler located?
- John Hessler's practice location on file with NPPES is 815 3rd Ave, Chula Vista, CA 91911-1307.
- What is John Hessler's phone number?
- The practice phone number listed in the NPPES registry for John Hessler is (619) 426-1555.
- Is John Hessler's NPI active?
- Yes — John Hessler's NPI (1548306269) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.