Robert Kenneth Walker, MD
Emergency Medicine Physician · Brookhaven, MS
Robert Kenneth Walker, MD is an emergency medicine physician with a practice address in Brookhaven, Mississippi, and NPI 1225205313, issued on May 8, 2008. Check the license (Mississippi 21640, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Robert Kenneth Walker
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 21640 MS
Self-reported in NPPES; status is on the state search - Practice location
- 327 N Jackson St, Brookhaven, MS 39601
- Phone
- (601) 833-3800
- Enumerated
- May 8, 2008
- Record last updated
- May 8, 2023
- Fax
- (601) 833-3847
- Medicare enrollment
- Enrolled (PECOS I20230821004195); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 327 N Jackson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marty Ballard, FNPFamily Nurse Practitioner1023622081
- Melissa Davis, FNP-CPrimary Care Nurse Practitioner1609396076
- Kasie Holmes, FNP-CFamily Nurse Practitioner1265830541
- Haley Mitchell, FNP-CFamily Nurse Practitioner1538047949
Verify Robert Kenneth Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 21640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average emergency medicine physician in 2024
971 Medicare Part D claims for 330 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 44 claims were for opioids.
Most prescribed
- Cefdinir42 claims
- Atorvastatin Calcium41 claims
- Hydrocodone-Acetaminophen41 claims
- Prednisone40 claims
- Amlodipine Besylate25 claims
- Linzess23 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.
Industry payments in 2024: $76.82
4 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 12,335 providers of this specialty with any payment received $953.79 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 3 group practices
- Floridian Emergency Specialists LLCCrestview, FL
- Ies Alabama PLLCFoley, AL
- Santa Rosa HB Medical Services LLCPace, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Emergency Medicine Physician providers in Mississippi
There are 515 emergency medicine physician records in Mississippi.
Other emergency medicine physician records in Mississippi
- Noah Abbas, M.D.Jackson, MS1982991246
- Corey Abdeen, DOCorinth, MS1700572419
- Deborah Ables, N.P.Brandon, MS1881643500
- Jordan Abney, MDJackson, MS1275238214
- Leonard Addae, MDNatchez, MS1659791861
- Babatunde Adeyemi, DOJackson, MS1639631864
- James Ahlrich, MDJackson, MS1255178059
- Ronnie Ali, DOGulfport, MS1497735039
- Jennifer Alleyn, M.D.Jackson, MS1164702825
- Tiffany AllisonJackson, MS1194256537
Common questions
What is Robert Kenneth Walker, MD's NPI number?
Robert Kenneth Walker, MD's National Provider Identifier (NPI) is 1225205313, issued on May 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Robert Kenneth Walker, MD located?
The NPPES record lists a practice address at 327 N Jackson St, Brookhaven, MS, 39601. Phone: (601) 833-3800. Providers update this record themselves, so call before visiting.
How can I verify Robert Kenneth Walker, MD's license?
NPPES lists Mississippi license number 21640, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Kenneth Walker, MD prescribe under Medicare Part D?
In 2024, Robert Kenneth Walker, MD had 971 Medicare Part D claims for 330 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.