NPPES file of Aug 9, 2026

Mark Vance Shelton, M.D.

Internal Medicine Physician · Winnfield, LA

Mark Vance Shelton, M.D. is an internal medicine physician with a practice address in Winnfield, Louisiana, and NPI 1548251036, issued on Nov 2, 2005. Check the license (Louisiana R005223, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548251036
Name
Mark Vance Shelton
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
R005223 LA
Self-reported in NPPES; status is on the state search
Practice location
106 W Boundary Ave, Winnfield, LA 71483
Phone
(318) 628-4123
Enumerated
Nov 2, 2005
Record last updated
Jan 3, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(318) 628-4125
Medicare enrollment
Enrolled (PECOS I20081016000516); accepts Medicare assignment
Medical or professional school
Louisiana State University School Of Medicine In Shreveport, 1983
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Mark Vance Shelton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
    Search for license R005223
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Louisiana license search

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3.0 times the Medicare Part D claims of the average internal medicine physician in 2024

9,600 Medicare Part D claims for 436 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 109 claims were for opioids.

  1. Mark Shelton9,600
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium489 claims
  2. Levothyroxine Sodium406 claims
  3. Potassium Chloride393 claims
  4. Losartan Potassium287 claims
  5. Metoprolol Succinate277 claims
  6. Gabapentin240 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): 93.6 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.

  1. Qualityout of 100 · 30% of the final score68.8
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Clhg-Winn, LLCWinnfield, LA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Vance Shelton among 1,749 internal medicine physician records in Louisiana

Mark Vance Shelton, M.D. is one of 1,749 internal medicine physician records with a practice address in Louisiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 90% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1983 · median 2008 among the 1,216 with a school on file
  • Record last updated2011 · 56% 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 Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in Louisiana

There are 1,749 internal medicine physician records in Louisiana.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Isaac Freeborn, MDOakdale, LA 714631972705333
  2. Binitha Joseph, M.DOakdale, LA 714631881893139
  3. Walter Guillory, MDFort Polk, LA 714591801418439
  4. Lindsay Muncy, M.D.Fort Polk, LA 714591013322734
  5. Otis Barnum, DONatchitoches, LA 714571245224559
  6. Kathleen Kautz, M.D.Natchitoches, LA 714571215034103
  7. Mary Long, MDNatchitoches, LA 714571972500221
  8. Claudia Mayeux, MDNatchitoches, LA 714571760488985

Common questions

What is Mark Vance Shelton, M.D.'s NPI number?

Mark Vance Shelton, M.D.'s National Provider Identifier (NPI) is 1548251036, issued on Nov 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Vance Shelton, M.D. located?

The NPPES record lists a practice address at 106 W Boundary Ave, Winnfield, LA, 71483. Phone: (318) 628-4123. Providers update this record themselves, so call before visiting.

How can I verify Mark Vance Shelton, M.D.'s license?

NPPES lists Louisiana license number R005223, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark Vance Shelton, M.D. prescribe under Medicare Part D?

In 2024, Mark Vance Shelton, M.D. had 9,600 Medicare Part D claims for 436 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Mark Vance Shelton, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.6 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.