Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

William Nolan Chadwick

Individual provider Mental Health Counselor · NPI 1548966260

William Nolan Chadwick is a Mental Health Counselor in Shawnee, Oklahoma. Qualified in 2023, 3 years ago. Practices with Oklahoma Mental Health Council, a 71-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
3
Licensed in
OK
In the registry since
2023
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Practice location Address checks out

1336 N Harrison Ave
Shawnee, OK 74801-5206
Phone: (405) 424-7711
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 11903 (OK)

Record details

NPI number1548966260
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedFebruary 3, 2023
Last updated in NPPESOctober 8, 2025
Certification dateOctober 8, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice Oklahoma Mental Health Council — 71 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Shawnee