WILLIAM RUSSELL MCKENZIE FNP
NPI 1548979255
Nurse Practitioner - Family in Farmington, MO
About William Russell Mckenzie Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM RUSSELL MCKENZIE FNP (NPI 1548979255) is an individual family provider in Farmington, Missouri, licensed in Missouri (2022045231) and active in the NPI registry since November 2022. He is enrolled in Medicare PECOS, is affiliated with Parkland Health Center, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
William Russell Mckenzie Fnp 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.
Medicare Billing Reassignments
3Medicare enrollment records show William Mckenzie reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Poplar Bluff, MO 63901
- Reassigned Medicare billing, Missouri enrollment
- 102 clinicians in this Medicare group
Alton, IL 62002
- Reassigned Medicare billing, Missouri enrollment
- 343 clinicians in this Medicare group
Chattanooga, TN 37403
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: Southeastern Emergency Services Of Memphis PC
- 89 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Parkland Health Center
Acute Care Hospitals · Farmington, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63640 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
FARMINGTON, MO 63640
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 Mckenzie's NPI number?
The NPI number for William Mckenzie is 1548979255. It was assigned to this individual provider in the NPPES registry on November 21, 2022.
Where is William Mckenzie located?
William Mckenzie practices at 1101 W Liberty St, Farmington, MO 63640. The listed phone number is (573) 756-6451.
What is William Mckenzie's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is William Mckenzie enrolled in Medicare?
Yes. William Mckenzie 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.
Which organizations bill Medicare for William Mckenzie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Mckenzie reassigns Medicare benefits to 3 organizations: Missouri Hb Medical Services, LLC (Poplar Bluff, MO), Southeastern Emergency Physicians Of Memphis LLC (Alton, IL) and Southeastern Emergency Services Of Memphis, P.C. (Chattanooga, TN). Each 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 William Mckenzie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is William Mckenzie affiliated with any hospitals?
According to CMS data, William Mckenzie is affiliated with Parkland Health Center.
When was this NPI record last updated?
The NPPES record for William Mckenzie was last updated on November 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# William Russell Mckenzie, FNP · NPI 1548979255
Family physician in Farmington, Missouri. Individual provider, active in the CMS NPPES registry since November 21, 2022.
## Identity
- **NPI:** 1548979255 (Entity type: Individual)
- **Enumerated:** November 21, 2022
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 2022045231 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1101 W LIBERTY ST, Farmington, MO 63640-1921
- **Phone:** (573) 756-6451
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Missouri Hb Medical Services, LLC (NPI 1922868462, Poplar Bluff, MO); Southeastern Emergency Physicians Of Memphis LLC (NPI 1437105277, Alton, IL); Southeastern Emergency Services Of Memphis, P.C. (NPI 1164454450, Chattanooga, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** November 21, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1548979255) · Data from the CMS NPPES public registry.