Sonya L Cornwell PHD Clinical Psychologist PLLC
NPI 1417508904 · Clinical Psychologist · Tahlequah, OK
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonya L Cornwell PHD Clinical Psychologist PLLC is a Clinical Psychologist organization in Tahlequah, OK (NPI 1417508904).
Provider details
- NPI number
- 1417508904
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Sonya Cornwell, PHD and Owner(918) 708-9558
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Counselor101Y00000X
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
Behavioral Health & Social Service Providers
- Professional Counselor101YP2500X
Behavioral Health & Social Service Providers
- Counseling Psychologist103TC1900X
Behavioral Health & Social Service Providers
- Clinical Child & Adolescent Psychologist103TC2200X
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
6 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
- 2019-09-25
- Last updated
- 2019-09-25
Frequently asked questions
- What is Sonya L Cornwell PHD Clinical Psychologist PLLC's NPI number?
- Sonya L Cornwell PHD Clinical Psychologist PLLC's National Provider Identifier (NPI) is 1417508904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sonya L Cornwell PHD Clinical Psychologist PLLC?
- Sonya L Cornwell PHD Clinical Psychologist PLLC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Sonya L Cornwell PHD Clinical Psychologist PLLC located?
- Sonya L Cornwell PHD Clinical Psychologist PLLC's practice location on file with NPPES is 310 W Keetoowah St, Tahlequah, OK 74464-3824.
- What is Sonya L Cornwell PHD Clinical Psychologist PLLC's phone number?
- The practice phone number listed in the NPPES registry for Sonya L Cornwell PHD Clinical Psychologist PLLC is (918) 708-9558.
- Does Sonya L Cornwell PHD Clinical Psychologist PLLC accept Medicare?
- Sonya L Cornwell PHD Clinical Psychologist PLLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Sonya L Cornwell PHD Clinical Psychologist PLLC?
- The authorized official listed on Sonya L Cornwell PHD Clinical Psychologist PLLC's NPPES record is Sonya Cornwell, PHD and Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sonya L Cornwell PHD Clinical Psychologist PLLC's NPI active?
- Yes — Sonya L Cornwell PHD Clinical Psychologist PLLC's NPI (1417508904) is active in the NPPES registry as of the last update on 2019-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.