Brian N. Walker, DO
Hematology & Oncology Physician · Jackson, TN
Brian N. Walker, DO is a hematology & oncology physician with a practice address in Jackson, Tennessee, and NPI 1144290032, issued on Jan 24, 2006. Check the license (Tennessee 01943, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Brian N. Walker
- Credential
- DO
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- 01943 TN
DO1943 TN
17418 MS
Self-reported in NPPES; status is on the state search - Practice location
- 322 Hospital Blvd, Jackson, TN 38305
- Phone
- (731) 668-1668
- Enumerated
- Jan 24, 2006
- Record last updated
- Feb 28, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (731) 668-6720
- Medicaid IDs
- 0126632 MS
3001465 TN - Medicare enrollment
- Enrolled (PECOS I20080514000881); accepts Medicare assignment
- Medical or professional school
- Kansas City College Of Medicine And Surgery, 2000
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 273 in Tennessee → Look up another NPI →
Also registered at 322 Hospital Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Archie Wright, DOHematology & Oncology Physician1639270440
Verify Brian N. Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 01943Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.8 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,417 Medicare Part D claims for 385 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 464 claims were for opioids.
Most prescribed
- Oxycodone Hcl273 claims
- Anastrozole237 claims
- Ondansetron Odt131 claims
- Gabapentin120 claims
- Imbruvica111 claims
- Dexamethasone98 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 55.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,071.70
44 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Jackson Madison County General HospitalJackson, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian N. Walker among 273 hematology & oncology physician records in Tennessee
Brian N. Walker, DO is one of 273 hematology & oncology physician records with a practice address in Tennessee. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 16% of them.
- NPI issued2006 · 16% of these records are older, 53% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 82% of these records are
- Graduated2000 · median 2004 among the 223 with a school on file
- Record last updated2013 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Tennessee
There are 273 hematology & oncology physician records in Tennessee.
All 273 in Tennessee → Every provider in Jackson → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Archie Wright, DOJackson, TN 383051639270440
- Jessica Davis, D.O.Jackson, TN 383011427431097
- Saira Farid, MDJackson, TN 383011659876894
- Shuang Fu, M.D.Jackson, TN 383011730495342
- Clyde Smith, M.D.Jackson, TN 383011053365809
- Margaret Gore, M.D.Union City, TN 382611477551380
- Varun Dhulipala, M.D.Columbia, TN 384011902196165
- Romany Johnpulle, M.D.Columbia, TN 384011962632968
Common questions
What is Brian N. Walker, DO's NPI number?
Brian N. Walker, DO's National Provider Identifier (NPI) is 1144290032, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian N. Walker, DO located?
The NPPES record lists a practice address at 322 Hospital Blvd, Jackson, TN, 38305. Phone: (731) 668-1668. Providers update this record themselves, so call before visiting.
How can I verify Brian N. Walker, DO's license?
NPPES lists Tennessee license number 01943, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian N. Walker, DO prescribe under Medicare Part D?
In 2024, Brian N. Walker, DO had 2,417 Medicare Part D claims for 385 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Brian N. Walker, DO's MIPS final score?
The 2023 MIPS final score is 55.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.