Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. MICHELLE DIANE WILLIS APRN-CNP
NPI 1639060171
Nurse Practitioner - Family in Chickasha, OK

Q: What is Michelle Willis's NPI number?

The NPI number for Michelle Willis is 1639060171. It was assigned to this individual provider in the NPPES registry on July 14, 2025. The provider is also known as Michelle Diane Wilson.

Q: What is Michelle Willis's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Michelle Willis was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 days 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.

Active since July 14, 2025PECOS Enrolled

411 W GRAND AVE, CHICKASHA, OK 73018(405) 224-0053 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: September 20, 2026.

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About Mrs. Michelle Diane Willis Aprn-cnp NPPES

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

MRS. MICHELLE DIANE WILLIS APRN-CNP (NPI 1639060171) is an individual family provider in Chickasha, Oklahoma, licensed in Oklahoma (224385) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2025).

NPPES Registry Identity

NPI1639060171

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMRS. MICHELLE DIANE WILLISCredential: APRN-CNP

Location Address411 W GRAND AVEChickasha, OK 73018-5862

Mailing Address4133 Blue Ridge AveNorman, OK 73072-4043 · (405) 613-8538

Phone(405) 224-0053

Sole ProprietorNo

Medical School CMSOtherGraduated 2025

Enumeration DateJuly 14, 2025

Last NPPES UpdateSeptember 14, 2026

NPPES CertifiedSeptember 14, 2026

✔ NPI 1639060171 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in OK · 224385

Also ListedNurse PractitionerTaxonomy 363L00000X · License 224385 (OK)

411 W GRAND AVE, Chickasha, OK 73018

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Other Names 1

Former Name (1)Michelle Diane Wilson

Secondary Practice Locations 2

Location 11421 NW 122nd StOklahoma City, OK 73114-8028 · Phone (405) 286-2888 · Fax (405) 286-1695

Location 22212 N Broadway StMoore, OK 73160-4303 · Phone (405) 285-7222 · Fax (405) 285-7227

Other Identifiers 1

Medicaid201374690AOK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.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

Mrs. Michelle Diane Willis Aprn-cnp 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 ID9436658457

PECOS Enrollment IDI20250818001255

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73018 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$82.46 typical visit price

range $53.00 – $162.61

Typical copayment $20.61 (range $13.25 – $40.65)

Most-billed visit code 99203

Established Patient

$94.27 typical visit price

range $16.68 – $132.40

Typical copayment $23.56 (range $4.17 – $33.10)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 6

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

HEATHER MICHELLE ROWELL APRN-CNP

Nurse Practitioner (Family)