John Brian Seymour, MD
Emergency Medicine Physician · Slidell, LA
John Brian Seymour, MD is an emergency medicine physician with a practice address in Slidell, Louisiana, and NPI 1255592788, issued on Jun 18, 2008. Check the license (Louisiana MD.204711, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Brian Seymour
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- MD.204711 LA
148843 NC
Self-reported in NPPES; status is on the state search - Practice location
- 100 Medical Center Drive, Slidell, LA 70461
- Phone
- (985) 646-5189
- Enumerated
- Jun 18, 2008
- Record last updated
- Nov 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (919) 966-0290
- Medicaid IDs
- 2153501 LA
02672211 MS - Medicare enrollment
- Enrolled (PECOS I20110808000600); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In Shreveport, 2008
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,000 in Louisiana → Look up another NPI →
Also registered at 100 Medical Center Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Laurie Bishop, M.D.Diagnostic Radiology Physician1508964990
- Darren Cousin, M.D.Anesthesiology Physician1912948654
- Lee Domangue, MDEmergency Medicine Physician1457308850
- David Donaldson, M.D.Diagnostic Radiology Physician1962502591
- Ann Hammond, CRNACertified Registered Nurse Anesthetist1417991118
- Ernest Hansen, M.DEmergency Medicine Physician1164465704
Verify John Brian Seymour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license MD.204711Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% more Medicare Part D claims than the average emergency medicine physician in 2024
409 Medicare Part D claims for 251 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 42 claims were for opioids.
Most prescribed
- Ondansetron Odt49 claims
- Amoxicillin-Clavulanate Potass23 claims
- Hydrocodone-Acetaminophen22 claims
- Methocarbamol16 claims
- Pantoprazole Sodium15 claims
- Prednisone15 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: $16.13
1 payment: food and beverage; the largest payer was Janssen Pharmaceuticals, 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 6 group practices
- Hospital Service District NO. 1 OF Caldwell ParishColumbia, LA
- Kenner Emergency Group LLCKenner, LA
- Luling Emergency Group LLCLuling, LA
- South Louisiana Medical AssociatesHouma, LA
- St. John Emergency Group LLCLa Place, LA
- Vincent Emergency Group, LLCSlidell, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Brian Seymour among 1,000 emergency medicine physician records in Louisiana
John Brian Seymour, MD is one of 1,000 emergency medicine physician records with a practice address in Louisiana. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 51% of them.
- NPI issued2008 · 51% of these records are older, 45% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2008 · median 2010 among the 653 with a school on file
- Record last updated2011 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 emergency medicine physician records list a practice address in Slidell
They are 22 of the 1,838 NPPES records with a practice address in Slidell, and 1,000 emergency medicine physician records in Louisiana.
All 1,000 in Louisiana → Every provider in Slidell → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Wayne Berkowitz, MDSlidell, LA 704611225076169
- Lee Domangue, MDSlidell, LA 704611457308850
- Brant Domangue, M.D.Slidell, LA 704611225419211
- Thaddeus Erato, M.D.Slidell, LA 704611962429985
- Andrew Fuller, MDSlidell, LA 704611770807786
- Hatem Hamed, M.D.,M.B.,CH.B.,M.S.Slidell, LA 704611841434404
- Ernest Hansen, M.DSlidell, LA 704611164465704
- Andrew Marsh, MDSlidell, LA 704611548270721
Common questions
What is John Brian Seymour, MD's NPI number?
John Brian Seymour, MD's National Provider Identifier (NPI) is 1255592788, issued on Jun 18, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Brian Seymour, MD located?
The NPPES record lists a practice address at 100 Medical Center Drive, Slidell, LA, 70461. Phone: (985) 646-5189. Providers update this record themselves, so call before visiting.
How can I verify John Brian Seymour, MD's license?
NPPES lists Louisiana license number MD.204711, 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 John Brian Seymour, MD prescribe under Medicare Part D?
In 2024, John Brian Seymour, MD had 409 Medicare Part D claims for 251 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.