Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Brian N Walker, DO

Individual provider Hematology & Oncology Physician · NPI 1144290032

Brian N Walker, DO practises Medical Oncology in Jackson, Tennessee. Graduated from Kansas City College of Medicine and Surgery in 2000, 26 years ago. Practices with Jackson Madison County General Hospital, a 56-clinician group and accepts Medicare assignment. Licensed in Mississippi and Tennessee.

Years since qualifying
26
Trained at
Kansas City College of Medicine and Surgery
Licensed in
MS, TN
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

322 Hospital Blvd
Jackson, TN 38305 Not confirmed with CMS for 13 years — call before visiting
Phone: (731) 668-1668
Fax: (731) 668-6720
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 01943 (TN)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 17418 (MS)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence DO1943 (TN)

Record details

NPI number1144290032
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJanuary 24, 2006
Last updated in NPPESFebruary 28, 2013

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY, HEMATOLOGY/ONCOLOGY
Medical schoolKANSAS CITY COLLEGE OF MEDICINE AND SURGERY
Graduated 2000 (26 years in practice)
Group practice Jackson Madison County General Hospital — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients463
Services billed 1,292 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,147 48 payments · a meal or drink at a meeting or visit, not a fee
Education $123 2 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Jackson Madison County General Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 56 clinicians in the practice; 12 are shown here.

Other providers in Jackson