IndividualActive
John Adler
NPI 1659739175 · Psychologist · Knoxville, TN
John Adler is a Psychologist provider in Knoxville, TN (NPI 1659739175).
Provider details
- NPI number
- 1659739175
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- PE0000001708 (TN)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(72/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
3105 Essary Dr
Knoxville, TN 37918-2409
Phone: (865) 687-8990
Street-level locationGet directions
Mailing address
3105 Essary Dr
Knoxville, TN 37918-2409
Registry dates
- Enumerated
- 2016-01-29
- Last updated
- 2016-01-29
Frequently asked questions
- What is John Adler's NPI number?
- John Adler's National Provider Identifier (NPI) is 1659739175, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Adler's specialty?
- John Adler is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Adler located?
- John Adler's practice location on file with NPPES is 3105 Essary Dr, Knoxville, TN 37918-2409.
- What is John Adler's phone number?
- The practice phone number listed in the NPPES registry for John Adler is (865) 687-8990.
- Is John Adler's NPI active?
- Yes — John Adler's NPI (1659739175) is active in the NPPES registry as of the last update on 2016-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.