NPPES file of Aug 9, 2026

William Nolan Chadwick

Mental Health Counselor · Shawnee, OK

William Nolan Chadwick is a mental health counselor with a practice address in Shawnee, Oklahoma, and NPI 1548966260, issued on Feb 3, 2023. Check the license (Oklahoma 11903, as entered in NPPES) with the Oklahoma board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548966260
Name
William Nolan Chadwick
Primary taxonomy
Mental Health Counselor 101YM0800X
License number
11903 OK
Self-reported in NPPES; status is on the state search
Practice location
1336 N Harrison Ave, Shawnee, OK 74801
Phone
(405) 424-7711
Enumerated
Feb 3, 2023
Record last updated
Oct 8, 2025
Medicare enrollment
Enrolled (PECOS I20251201000263); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1336 N Harrison Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amanda AdamsCase Manager/Care Coordinator1538912290
  2. Kaitlen AllenPeer Specialist1417662297
  3. Kelly ArmstrongLicensed Practical Nurse1174347595
  4. Davi BlackthornePeer Specialist1366142689
  5. Raven BrucePeer Specialist1356055669
  6. Michael CalimeeBehavior Technician1285255711

Verify William Nolan Chadwick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license 11903
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Oklahoma license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Oklahoma Mental Health CouncilOklahoma City, OK

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

William Nolan Chadwick among 6,520 mental health counselor records in Oklahoma

William Nolan Chadwick is one of 6,520 mental health counselor records with a practice address in Oklahoma. 5% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 92% of them.

  • NPI issued2023 · 92% of these records are older, 6% newer
  • In a Medicare fileYes · 5% of these records are
  • In the CMS Doctors and Clinicians fileYes · 7% of these records are
  • Graduated2023 · median 2014 among the 464 with a school on file
  • Record last updated2025 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 101YM0800X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

84 mental health counselor records list a practice address in Shawnee

They are 84 of the 1,175 NPPES records with a practice address in Shawnee, and 6,520 mental health counselor records in Oklahoma.

The 8 mental health counselor records with the nearest ZIP codes

  1. Abigail Cabaniss, LPC UNDER SUPERVISIOShawnee, OK 748011285832915
  2. Woodson Coplen, M.ED., LMFT,LADC/MHShawnee, OK 748011073555405
  3. Don Dyer, MS LPCShawnee, OK 748011104858158
  4. Jeri Garrison, B.S.Shawnee, OK 748011376705145
  5. Angela HoldenShawnee, OK 748011043312564
  6. Tamara Hudgins, B.A.Shawnee, OK 748011407866361
  7. Kevin Jett, LMFT, LADCShawnee, OK 748011548399769
  8. Tracy Leitner, M.ED.Shawnee, OK 748011477747442

Common questions

What is William Nolan Chadwick's NPI number?

William Nolan Chadwick's National Provider Identifier (NPI) is 1548966260, issued on Feb 3, 2023. An NPI identifies a provider in billing; it is not a license.

Where is William Nolan Chadwick located?

The NPPES record lists a practice address at 1336 N Harrison Ave, Shawnee, OK, 74801. Phone: (405) 424-7711. Providers update this record themselves, so call before visiting.

How can I verify William Nolan Chadwick's license?

NPPES lists Oklahoma license number 11903, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.