Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Brian James Duff, MD

Individual provider Family Medicine Physician · NPI 1447411145

Dr. Brian James Duff, MD is a Family Practice in Nixa, Missouri. Qualified in 2008, 18 years ago. Practices with Lester E Cox Medical Centers, a 243-clinician group and accepts Medicare assignment. Licensed in Florida and Missouri.

Years since qualifying
18
Licensed in
FL, MO
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

501 N Old Wilderness Rd
Nixa, MO 65714-9490
Phone: (417) 269-2227
Fax: (417) 269-2235
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 2011011353 (MO)
Family Medicine Physician Taxonomy 207Q00000X · Licence TRN12304 (FL)

Record details

NPI number1447411145
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 24, 2008
Last updated in NPPESMay 12, 2025
Certification dateMay 12, 2025
Mailing addressPo Box 4046, Springfield, MO 65808-4046

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Lester E Cox Medical Centers — 243 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Nixa