Ronald Fenn, D.D.S.
NPI 1083615819 · Orthodontics and Dentofacial Orthopedics Dentistry · El Cajon, CA
Ronald Fenn, D.D.S. is a Orthodontics and Dentofacial Orthopedics Dentistry provider in El Cajon, CA (NPI 1083615819).
Provider details
- NPI number
- 1083615819
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- License
- 20975 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-08-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ronald Fenn's NPI number?
- Ronald Fenn's National Provider Identifier (NPI) is 1083615819, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Fenn's specialty?
- Ronald Fenn is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is Ronald Fenn located?
- Ronald Fenn's practice location on file with NPPES is 1136 N 2nd St, El Cajon, CA 92021-5008.
- What is Ronald Fenn's phone number?
- The practice phone number listed in the NPPES registry for Ronald Fenn is (619) 444-1181.
- Is Ronald Fenn's NPI active?
- Yes — Ronald Fenn's NPI (1083615819) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.