Dr. John Brian Seymour, MD
- Medicare services, 2024
- 216
- Medicare patients, 2024
- 214
- Part D claims, 2024
- 409
- Hospital affiliations
- 4
- Industry payments
- $32
- Practice address
- 1057 Paul Maillard Road, Luling, LA 70070
- Practice phone
- Call (985) 785-3644
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Seymour's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Brian Seymour is an emergency medicine physician in Luling, Louisiana
Dr. Seymour practices at St. Charles Parish Hospital in Luling, Louisiana, part of Ochsner Health System.
Dr. Seymour's NPI, 1255592788, was assigned on June 18, 2008. Dr. Seymour graduated from Louisiana State University School of Medicine in Shreveport in 2008. Dr. Seymour holds Louisiana license MD.204711.
- NPI
- 1255592788NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406988385
- NPI enumeration date
- June 18, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (985) 785-3644
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Brian Seymour practices at St. Charles Parish Hospital in Luling, Louisiana
Dr. Seymour's primary practice is St. Charles Parish Hospital, at 1057 Paul Maillard Road, Luling, LA 70070 in St. Charles Parish. The practice phone is (985) 785-3644.
- St. Charles Parish Hospital1057 Paul Maillard Road, Luling, LA 70070 · St. Charles ParishPhone(985) 785-3644
Source: Dmand AI Affiliation Data
Dr. John Brian Seymour is affiliated with 12 sites of care and 9 medical groups
Dr. Seymour's primary practice is St. Charles Parish Hospital in Luling, Louisiana, part of Ochsner Health System. Dr. Seymour is also affiliated with Ochsner Medical Center - Kenner. The medical group on file is Ochsner Health. Dmand AI also links Dr. Seymour to 2 more hospitals, 8 group practices and clinics and 8 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Brian Seymour's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Seymour practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Charles Parish Hospital | Available with a free account |
| +11 more sites and 8 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ochsner Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Brian Seymour is one of 809 emergency medicine physicians in Louisiana
Emergency medicine is Dr. Seymour's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Seymour's licenses on file in 2 states: Louisiana and North Carolina.
Specialties and state licenses
- Emergency medicine, LouisianaPrimary
- Student in an organized health care education/training program, North Carolina
Emergency medicine physicians near Dr. Seymour
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John Brian Seymour billed Medicare for 216 services in 2024
CMS data shows 216 Medicare services from Dr. Seymour across 3 procedure codes in 2024, for 214 Medicare patients. Medicare paid $24,171 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Seymour's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2832024: 21624%
- Tests and treatments
- 2023: 182024: 0100%
Dr. Seymour compared with the Louisiana median for emergency medicine physicians, 2024
- Dr. Seymour
- Louisiana median
- Medicare services
- 216vs 19411% above
- Medicare patients
- 214vs 17820% above
- Part D claims
- 230vs 822.8 times
Medians across 793 emergency medicine physicians in Louisiana with Dmand AI profiles that report each measure.
Dr. Seymour's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Seymour?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Seymour and other emergency medicine physicians in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Brian Seymour treated 214 Medicare patients in 2024, average age 71
CMS counts 214 Medicare patients who saw Dr. Seymour in 2024. The largest group is 65 to 74, with 81 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 2.03, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Seymour's median patient age at 46, with 57% women.
Dr. Seymour's Medicare patients by age, 2024
Dr. Seymour's Medicare patients by sex, 2024
- Women11554%
- Men9946%
Chronic conditions among Dr. Seymour's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Mood disorders43%
- Diabetes42%
- Depression39%
- Ischemic heart disease37%
- Anxiety36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Seymour's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Brian Seymour wrote 409 Medicare Part D claims in 2024
In 2024, Dr. Seymour wrote 409 Medicare Part D claims for 251 patients. 94% of them were for generic drugs. CMS names the drug for 230 of them, across 13 drugs with 11 or more claims each, at $1,683 in total drug cost. In 2023, CMS named 145 claims across 7 drugs.
Dr. Seymour's Part D claims by kind of drug, 2024
- Generic384 claims94%
- Brand-name25 claims6%
Dr. Seymour's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Seymour's Part D claims, 2024
- Opioids10%42 of 409 claims
- Antibiotics21%86 of 409 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1452024: 23059%
Drugs named by CMS: 13 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. John Brian Seymour takes part in Medicare
Dr. Seymour accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Brian Seymour received $32 in industry payments from 2023 to 2024
CMS Open Payments shows 2 general payments to Dr. Seymour from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $16.
General payments to Dr. Seymour by program year, 2023 to 2024
Companies that paid Dr. Seymour the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Brian Seymour graduated from Louisiana State University School of Medicine in Shreveport
Dr. Seymour graduated from Louisiana State University School of Medicine in Shreveport in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Brian Seymour's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John Brian Seymour
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John Brian Seymour's NPI number?
Dr. John Brian Seymour's NPI number is 1255592788. It was assigned on June 18, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. John Brian Seymour?
Dr. John Brian Seymour is an emergency medicine physician in Luling, Louisiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. John Brian Seymour practice?
Dr. Seymour practices at 1057 Paul Maillard Road, Luling, LA 70070. Dr. Seymour's primary practice is St. Charles Parish Hospital in Luling, Louisiana, part of Ochsner Health System. Dmand AI also links Dr. Seymour to 2 hospitals, 8 group practices and clinics and 8 medical groups.
What is Dr. John Brian Seymour's office phone number?
The practice phone on file for Dr. Seymour is (985) 785-3644.
What is Dr. John Brian Seymour's medical license number?
Dr. Seymour holds Louisiana license MD.204711, one of the licenses on file in 2 states.
Which states has Dr. John Brian Seymour been licensed in?
Dmand AI has state licenses on file for Dr. Seymour in Louisiana and North Carolina.
Which hospitals is Dr. John Brian Seymour affiliated with?
Dr. Seymour practices at St. Charles Parish Hospital in Luling, Louisiana. Dr. Seymour is also affiliated with Ochsner Medical Center - Kenner. Dmand AI links Dr. Seymour to 2 more hospitals.
What medical group is Dr. John Brian Seymour part of?
Dr. Seymour is linked to Ochsner Health. Dmand AI links Dr. Seymour to 8 more medical groups.
Does Dr. John Brian Seymour accept Medicare?
Yes. CMS data shows Dr. Seymour billed Medicare for 216 services in 2024, and Dr. Seymour accepts Medicare assignment.
How many Medicare patients does Dr. John Brian Seymour see?
CMS counts 214 Medicare patients who saw Dr. Seymour in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. John Brian Seymour bill to Medicare?
In 2024, Dr. Seymour's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
Where did Dr. John Brian Seymour go to medical school?
Dr. Seymour graduated from Louisiana State University School of Medicine in Shreveport in 2008.
What drugs does Dr. John Brian Seymour prescribe most?
In 2024 Medicare Part D data, Dr. Seymour's most prescribed drugs by claims were Ondansetron ODT, Amoxicillin-Clavulanate Potass and Hydrocodone-Acetaminophen.
Has Dr. John Brian Seymour received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to Dr. Seymour from 2 companies from 2023 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. John Brian Seymour been practicing?
Dr. Seymour graduated from medical school in 2008, 18 years ago.
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