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WILLIAM NOLAN CHADWICK
NPI 1548966260
Counselor - Mental Health in Shawnee, OK

Active since February 03, 2023PECOS EnrolledAccepts Medicare Assignment
1336 N HARRISON AVE, SHAWNEE, OK 74801(405) 424-7711 Get Directions Write a Review

NPPES record last updated: October 8, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Oct 8, 2025, May 13, 2024, Dec 12, 2023 and 4 more (7 updates tracked since 2023).

About William Nolan Chadwick NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM NOLAN CHADWICK (NPI 1548966260) is an individual mental health provider in Shawnee, Oklahoma, licensed in Oklahoma (11903) and active in the NPI registry since February 2023. He is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1548966260
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameWILLIAM NOLAN CHADWICK
Location Address1336 N HARRISON AVEShawnee, OK 74801-5206
Mailing Address1336 N Harrison AveShawnee, OK 74801-5206 · (054) 244-7711
Phone(405) 424-7711
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateFebruary 3, 2023
Last NPPES UpdateOctober 8, 20257 updates tracked since enumeration
NPPES CertifiedOctober 8, 2025
✔ NPI 1548966260 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in OK · 11903
1336 N HARRISON AVE, Shawnee, OK 74801
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Nolan Chadwick is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID446743371
PECOS Enrollment IDI20251201000263
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MERANDA SMALLWOOD LMSW
Social Worker (Clinical)
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711
FAYTH KIMBRELL
Peer Specialist
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711
JAQUELYN BETH WOTHERSPOON
Case Manager/Care Coordinator
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711
MRS. SETH DAWN COLDWELL
Case Manager/Care Coordinator
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 275-7100
BETHANY LIN DAMRON
Case Manager/Care Coordinator
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711
HEATHER ST JOHN
Case Manager/Care Coordinator
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711
TARA LYNN MERRITT
Peer Specialist
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711
ADRIENNE R QUIRK
Case Manager/Care Coordinator
1336 N HARRISON AVE
SHAWNEE, OK 74801
Pottawatomie County (405) 424-7711

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Chadwick's NPI number?

The NPI number for William Chadwick is 1548966260. It was assigned to this individual provider in the NPPES registry on February 3, 2023.

Where is William Chadwick located?

William Chadwick practices at 1336 N Harrison Ave, Shawnee, OK 74801. The listed phone number is (405) 424-7711.

What is William Chadwick's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is William Chadwick enrolled in Medicare?

Yes. William Chadwick is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Chadwick accept?

Health plans from Medica and Oscar Insurance Company list William Chadwick as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Chadwick was last updated on October 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.