What is Derek Folk's NPI number?

Derek Folk's National Provider Identifier (NPI) is 1790122455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Derek Folk's specialty?

Derek Folk is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).

Where is Derek Folk located?

Derek Folk's practice location on file with NPPES is 4430 Missouri Ave, Fort Leonard Wood, MO 65473-9098.

What is Derek Folk's phone number?

The practice phone number listed in the NPPES registry for Derek Folk is (573) 596-0522.

Is Derek Folk's NPI active?

Yes — Derek Folk's NPI (1790122455) is active in the NPPES registry as of the last update on 2025-09-16.

IndividualActive

Derek Folk, PSY.D.

NPI 1790122455 · Clinical Psychologist · Fort Leonard Wood, MO

Derek Folk, PSY.D. is a Clinical Psychologist provider in Fort Leonard Wood, MO (NPI 1790122455).

Provider details

NPI number: 1790122455
Entity type: Individual
Primary specialty: Clinical PsychologistBehavioral Health & Social Service Providers
Credential: PSY.D.
Sex: Male
Sole proprietor: Yes
License: 4482 (AZ)

Specialties & taxonomies

Clinical PsychologistPrimary103TC0700XLicense 4482 (AZ)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(77/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
13 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

4430 Missouri Ave

Fort Leonard Wood, MO 65473-9098

Phone: (573) 596-0522

Approximate (ZIP-level) locationGet directions

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Mailing address