NPPES file of Aug 9, 2026

Walter Guillory, MD

Internal Medicine Physician · Fort Polk, LA

Walter Guillory, MD is an internal medicine physician with a practice address in Fort Polk, Louisiana, and NPI 1801418439, issued on May 18, 2020. Check the license (Louisiana 350993, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801418439
Name
Walter Guillory
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
350993 LA
0101273835 VA
Self-reported in NPPES; status is on the state search
Practice location
1585 3RD St, Fort Polk, LA 71459
Phone
(726) 780-2175
Enumerated
May 18, 2020
Record last updated
Jul 13, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1585 3RD St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alfonso Alarcon, M.D.Orthopaedic Surgery Physician1356330070
  2. Adrianne AllenFamily Nurse Practitioner1578978466
  3. Todd Anderson, DSC EMPAPhysician Assistant1326198698
  4. Bradley Antonides, M.S.Clinical Psychologist1235561093
  5. Carmen Arvelo, LCSWSocial Worker1366006579
  6. Charles Austin, PHARMDPharmacist1225410962

Verify Walter Guillory 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 350993
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

30 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Walter Guillory30
  2. Specialty average3,176

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.

Walter Guillory among 1,749 internal medicine physician records in Louisiana

Walter Guillory, MD 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 2020, is newer than 85% of them.

  • NPI issued2020 · 85% of these records are older, 11% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 70% of these records are
  • Record last updated2026 · 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. Lindsay Muncy, M.D.Fort Polk, LA 714591013322734
  2. Otis Barnum, DONatchitoches, LA 714571245224559
  3. Kathleen Kautz, M.D.Natchitoches, LA 714571215034103
  4. Mary Long, MDNatchitoches, LA 714571972500221
  5. Claudia Mayeux, MDNatchitoches, LA 714571760488985
  6. Lori Rodriguez, M.D.Natchitoches, LA 714571922020106
  7. Stephen Wheat, MDNatchitoches, LA 714571356348619
  8. Isaac Freeborn, MDOakdale, LA 714631972705333

Common questions

What is Walter Guillory, MD's NPI number?

Walter Guillory, MD's National Provider Identifier (NPI) is 1801418439, issued on May 18, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Walter Guillory, MD located?

The NPPES record lists a practice address at 1585 3RD St, Fort Polk, LA, 71459. Phone: (726) 780-2175. Providers update this record themselves, so call before visiting.

How can I verify Walter Guillory, MD's license?

NPPES lists Louisiana license number 350993, 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 Walter Guillory, MD prescribe under Medicare Part D?

In 2024, Walter Guillory, MD had 30 Medicare Part D claims; 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.