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
Mailing address1336 N Harrison Ave, Shawnee, OK 74801-5206

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