Willus Mark Horne, M.D.
Internal Medicine Physician · Laurel, MS
Willus Mark Horne, M.D. is an internal medicine physician with a practice address in Laurel, Mississippi, and NPI 1417961012, issued on Jul 28, 2006. Check the license (Mississippi 12127, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Willus Mark Horne
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 12127 MS
Self-reported in NPPES; status is on the state search - Practice location
- 1203 Jefferson St, Laurel, MS 39440
- Phone
- (601) 649-2863
- Enumerated
- Jul 28, 2006
- Record last updated
- Jul 11, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (601) 649-9479
- Medicaid ID
- 00010074 MS
- Medicare enrollment
- Enrolled (PECOS I20091217000605); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 972 in Mississippi → Look up another NPI →
Also registered at 1203 Jefferson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gloria Alridge, FNP-CFamily Nurse Practitioner1386926434
- Cynthia BeanNurse Practitioner1003405754
- Walter Beard, M.D.Cardiovascular Disease Physician1396032983
- James Beasley, M.D.Internal Medicine Physician1689696817
- Madison Brewer, FNP-CFamily Nurse Practitioner1679112304
- William Buck, DOInternal Medicine Physician1528647856
Verify Willus Mark Horne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 12127Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average internal medicine physician in 2024
10,895 Medicare Part D claims for 663 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 223 claims were for opioids.
Most prescribed
- Amlodipine Besylate479 claims
- Rosuvastatin Calcium394 claims
- Jardiance385 claims
- Atorvastatin Calcium317 claims
- Losartan Potassium308 claims
- Ozempic285 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: $460.24
22 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- South Central Clinics, IncLaurel, MS
- South Central Regional Medical CenterLaurel, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Willus Mark Horne among 972 internal medicine physician records in Mississippi
Willus Mark Horne, M.D. is one of 972 internal medicine physician records with a practice address in Mississippi. 82% 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 4% of them.
- NPI issued2006 · 4% of these records are older, 63% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1988 · median 2008 among the 585 with a school on file
- Record last updated2013 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 internal medicine physician records list a practice address in Laurel
They are 14 of the 623 NPPES records with a practice address in Laurel, and 972 internal medicine physician records in Mississippi.
All 972 in Mississippi → Every provider in Laurel → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- James Beasley, M.D.Laurel, MS 394401689696817
- William Buck, DOLaurel, MS 394401528647856
- Charles Cannon, M.D.Laurel, MS 394401841214145
- Hamit Kumar, M.B.B.SLaurel, MS 394401174842330
- Mark Norton, M.D.Laurel, MS 394401881608495
- Alison ReddingLaurel, MS 394401205398245
- Herbert Rogers, M.D.Laurel, MS 394401720092331
- Ihtesham Shafiq, MDLaurel, MS 394401457181851
Common questions
What is Willus Mark Horne, M.D.'s NPI number?
Willus Mark Horne, M.D.'s National Provider Identifier (NPI) is 1417961012, issued on Jul 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Willus Mark Horne, M.D. located?
The NPPES record lists a practice address at 1203 Jefferson St, Laurel, MS, 39440. Phone: (601) 649-2863. Providers update this record themselves, so call before visiting.
How can I verify Willus Mark Horne, M.D.'s license?
NPPES lists Mississippi license number 12127, 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 Willus Mark Horne, M.D. prescribe under Medicare Part D?
In 2024, Willus Mark Horne, M.D. had 10,895 Medicare Part D claims for 663 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.