Derek Hopko, PHD
NPI 1336251438 · Clinical Psychologist · Knoxville, TN
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Hopko, PHD is a Clinical Psychologist provider in Knoxville, TN (NPI 1336251438).
Provider details
- NPI number
- 1336251438
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- P2443 (TN)
Specialties & taxonomies
Behavioral Health & Social Service 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
- 2006-08-31
- Last updated
- 2015-11-02
Frequently asked questions
- What is Derek Hopko's NPI number?
- Derek Hopko's National Provider Identifier (NPI) is 1336251438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Hopko's specialty?
- Derek Hopko is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Derek Hopko located?
- Derek Hopko's practice location on file with NPPES is 121 N Concord St, Knoxville, TN 37919-2330.
- What is Derek Hopko's phone number?
- The practice phone number listed in the NPPES registry for Derek Hopko is (865) 673-6741.
- Does Derek Hopko accept Medicare?
- Derek Hopko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Hopko's NPI active?
- Yes — Derek Hopko's NPI (1336251438) is active in the NPPES registry as of the last update on 2015-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.