NPPES file of Aug 9, 2026

Thomas Ryan Palmer, M.D.

Gastroenterology Physician · Bossier City, LA

Thomas Ryan Palmer, M.D. is a gastroenterology physician with a practice address in Bossier City, Louisiana, and NPI 1578619912, issued on Jan 26, 2007. Check the license (Louisiana MD.14251R, 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
1578619912
Name
Thomas Ryan Palmer
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
MD.14251R LA
Self-reported in NPPES; status is on the state search
Practice location
2400 Hospital Dr, Bossier City, LA 71111
Phone
(318) 631-9121
Enumerated
Jan 26, 2007
Record last updated
Feb 12, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(318) 631-9126
Medicaid ID
1408778 LA
Medicare enrollment
Enrolled (PECOS I20070706000294); accepts Medicare assignment
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.
Download card Updates feed

Also registered at 2400 Hospital Dr

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

  1. Rodney Armand, M.D.Obstetrics & Gynecology Physician1962491233
  2. Albert Aura, MDPhysical Medicine & Rehabilitation Physician1821033119
  3. Farrah Baker, CRNACertified Registered Nurse Anesthetist1164296026
  4. Attila Balogh, MDInternal Medicine Physician1558310680
  5. Michael Banda, M.D.Surgery Physician1528064078
  6. John Brady, MDInternal Medicine Physician1669404851

Verify Thomas Ryan Palmer 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 MD.14251R
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

36% fewer Medicare Part D claims than the average gastroenterology physician in 2024

521 Medicare Part D claims for 217 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Thomas Palmer521
  2. Specialty average811

Most prescribed

  1. Omeprazole114 claims
  2. Pantoprazole Sodium90 claims
  3. Sucralfate58 claims
  4. Diphenoxylate-Atropine50 claims
  5. Gavilyte-G40 claims
  6. Famotidine26 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: $408.44

15 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Palmer$408.44
  2. Specialty average$5,015.95

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

  1. WK Pinnacle GastroenterologyShreveport, LA

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

Thomas Ryan Palmer among 263 gastroenterology physician records in Louisiana

Thomas Ryan Palmer, M.D. is one of 263 gastroenterology physician records with a practice address in Louisiana. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 54% of them.

  • NPI issued2007 · 54% of these records are older, 35% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2000 · median 2004 among the 207 with a school on file
  • Record last updated2020 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Louisiana

There are 263 gastroenterology physician records in Louisiana.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. John Bienvenu, MDBossier City, LA 711111821265281
  2. Lawrence Johnson, M.D.Bossier City, LA 711111619968641
  3. Douglas Rimmer, M.D.Bossier City, LA 711111386634590
  4. Barry Osherowitz, MDBossier City, LA 711121023092673
  5. Humberto Aguilar, M.D.Shreveport, LA 711151366432577
  6. Elvin Hardy, MDShreveport, LA 711071750600748
  7. James Hobley, M.D.Shreveport, LA 711151336114917
  8. Sathya Jaganmohan, M.D.Shreveport, LA 711151922202597

Common questions

What is Thomas Ryan Palmer, M.D.'s NPI number?

Thomas Ryan Palmer, M.D.'s National Provider Identifier (NPI) is 1578619912, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Ryan Palmer, M.D. located?

The NPPES record lists a practice address at 2400 Hospital Dr, Bossier City, LA, 71111. Phone: (318) 631-9121. Providers update this record themselves, so call before visiting.

How can I verify Thomas Ryan Palmer, M.D.'s license?

NPPES lists Louisiana license number MD.14251R, 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 Thomas Ryan Palmer, M.D. prescribe under Medicare Part D?

In 2024, Thomas Ryan Palmer, M.D. had 521 Medicare Part D claims for 217 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.