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MRS. MACKENZIE DENNIS N.P.
NPI 1861855538
Nurse Practitioner - Family in Mustang, OK

Active since March 31, 2016PECOS Enrolled
201 S SARA RD, MUSTANG, OK 73064(405) 272-9355(405) 578-3254 Get Directions Write a Review

NPPES record last updated: March 31, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mrs. Mackenzie Dennis N.p. NPPES

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

MRS. MACKENZIE DENNIS N.P. (NPI 1861855538) is an individual family provider in Mustang, Oklahoma, licensed in Oklahoma (102890) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861855538
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. MACKENZIE DENNISCredential: N.P.
Location Address201 S SARA RDMustang, OK 73064-4303
Mailing Address4501 Farm Hill RdNorman, OK 73072-3906 · (405) 209-6925
Phone(405) 272-9355
Fax(405) 578-3254
Sole ProprietorNo
Enumeration DateMarch 31, 2016
✔ NPI 1861855538 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in OK · 102890
201 S SARA RD, Mustang, OK 73064
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Mackenzie Dennis N.p. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Mackenzie Dennis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Nextgen Sleep LLC
16 mi
Sleep Medicine
3418 NW 135TH ST
Oklahoma City, OK 73120
  • Reassigned Medicare billing, Oklahoma enrollment
  • 11 clinicians in this Medicare group
NPI 1245605377 (405) 753-6151

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73064 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 2

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

ILONA DOBROWOLSKA SAMARA MD
Family Medicine
201 S SARA RD, SUITE 200
MUSTANG, OK 73064
Canadian County (405) 578-3250
BRITTANY S DANIELS MD
Pediatrics
201 S SARA RD, SUITE 200
MUSTANG, OK 73064
Canadian County (405) 578-3250

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 Mackenzie Dennis's NPI number?

The NPI number for Mackenzie Dennis is 1861855538. It was assigned to this individual provider in the NPPES registry on March 31, 2016.

Where is Mackenzie Dennis located?

Mackenzie Dennis practices at 201 S Sara Rd, Mustang, OK 73064. The listed phone number is (405) 272-9355.

What is Mackenzie Dennis's specialty?

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

Is Mackenzie Dennis enrolled in Medicare?

Yes. Mackenzie Dennis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mackenzie Dennis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mackenzie Dennis reassigns Medicare benefits to Nextgen Sleep LLC (Oklahoma City, OK). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mackenzie Dennis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mackenzie Dennis was last updated on March 31, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.