John Diddle, DDS, MS
NPI 1558385872 · Orthodontics and Dentofacial Orthopedics Dentistry · Knoxville, TN
John Diddle, DDS, MS is a Orthodontics and Dentofacial Orthopedics Dentistry provider in Knoxville, TN (NPI 1558385872).
Provider details
- NPI number
- 1558385872
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- DDS, MS
- Sex
- Male
- Sole proprietor
- Yes
- License
- DS 2753 (TN)
Specialties & taxonomies
Dental Providers
Profile Score
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
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2012-01-13
Frequently asked questions
- What is John Diddle's NPI number?
- John Diddle's National Provider Identifier (NPI) is 1558385872, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Diddle's specialty?
- John Diddle is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is John Diddle located?
- John Diddle's practice location on file with NPPES is 9220 Dutchtown Road, Knoxville, TN 37923-4925.
- What is John Diddle's phone number?
- The practice phone number listed in the NPPES registry for John Diddle is (865) 693-6561.
- Is John Diddle's NPI active?
- Yes — John Diddle's NPI (1558385872) is active in the NPPES registry as of the last update on 2012-01-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.