DR. BRIAN JAMES DUFF MD
NPI 1447411145
Family Medicine in Nixa, MO
About Dr. Brian James Duff Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIAN JAMES DUFF MD (NPI 1447411145) is an individual family medicine provider in Nixa, Missouri, licensed in Missouri (2011011353) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Cox Medical Centers, and is a graduate of Other (2008).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Dr. Brian James Duff Md 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
2Medicare enrollment records show Brian Duff reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Nixa, MO 65714
- Reassigned Medicare billing, Missouri enrollment
- 13 clinicians in this Medicare group
Springfield, MO 65807
- Reassigned Medicare billing, Missouri enrollment
- 457 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 11
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.
Cox Medical Centers
Acute Care Hospitals · Springfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 65714 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Brian Duff's NPI number?
The NPI number for Brian Duff is 1447411145. It was assigned to this individual provider in the NPPES registry on June 24, 2008.
Where is Brian Duff located?
Brian Duff practices at 501 N Old Wilderness Rd, Nixa, MO 65714. The listed phone number is (417) 269-2227.
What is Brian Duff's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Brian Duff enrolled in Medicare?
Yes. Brian Duff 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 Brian Duff's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian Duff reassigns Medicare benefits to 2 organizations: Lester E Cox Medical Centers (Nixa, MO) and Lester E Cox Medical Centers (Springfield, MO). 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 Brian Duff's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian Duff accept?
Health plans from Anthem Blue Cross and Blue Shield, Cox HealthPlans and Oscar Insurance Company list Brian Duff 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.
Is Brian Duff affiliated with any hospitals?
According to CMS data, Brian Duff is affiliated with Cox Medical Centers.
When was this NPI record last updated?
The NPPES record for Brian Duff was last updated on May 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.