Mark Chadwick Soileau, M.D.
Emergency Medicine Physician · Columbia, LA
Mark Chadwick Soileau, M.D. is an emergency medicine physician with a practice address in Columbia, Louisiana, and NPI 1275984510, issued on Jun 28, 2016. Check the license (Louisiana 329558, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark Chadwick Soileau
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 329558 LA
Self-reported in NPPES; status is on the state search - Practice location
- 7939 Highway 165, Columbia, LA 71418
- Phone
- (318) 649-6106
- Enumerated
- Jun 28, 2016
- Record last updated
- Jan 13, 2022
- Medicare enrollment
- Enrolled (PECOS I20220121001193); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 2015
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,000 in Louisiana → Look up another NPI →
Also registered at 7939 Highway 165
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Makayla BeaversFamily Nurse Practitioner1194611558
- Frederick Yates, M.D.Emergency Medicine Physician1396791653
Verify Mark Chadwick Soileau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 329558Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average emergency medicine physician in 2024
102 Medicare Part D claims for 62 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Tamsulosin Hcl14 claims
- Ondansetron Odt11 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.
Bills Medicare through one group practice
- Louisiana State University School OF Medicine IN New Orleans FacultyNew Orleans, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Chadwick Soileau among 1,000 emergency medicine physician records in Louisiana
Mark Chadwick Soileau, M.D. 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 2016, is newer than 76% of them.
- NPI issued2016 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2015 · median 2010 among the 653 with a school on file
- Record last updated2022 · 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).
2 emergency medicine physician records list a practice address in Columbia
They are 2 of the 98 NPPES records with a practice address in Columbia, and 1,000 emergency medicine physician records in Louisiana.
All 1,000 in Louisiana → Every provider in Columbia → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Frederick Yates, M.D.Columbia, LA 714181396791653
- Gary Wease, M.D.Leesville, LA 714461538200381
- Christopher Lee, MDMany, LA 714491740361823
- John Neely, M.D.Many, LA 714491528292471
- Charles Pearson, MDMany, LA 714491043258155
- Atwood Rice, M.D.Many, LA 714491538214069
- Timothy Collins, MDNatchitoches, LA 714571801992748
- Julian Hernandez, D.O.Natchitoches, LA 714571083881692
Common questions
What is Mark Chadwick Soileau, M.D.'s NPI number?
Mark Chadwick Soileau, M.D.'s National Provider Identifier (NPI) is 1275984510, issued on Jun 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Mark Chadwick Soileau, M.D. located?
The NPPES record lists a practice address at 7939 Highway 165, Columbia, LA, 71418. Phone: (318) 649-6106. Providers update this record themselves, so call before visiting.
How can I verify Mark Chadwick Soileau, M.D.'s license?
NPPES lists Louisiana license number 329558, 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 Chadwick Soileau, M.D. prescribe under Medicare Part D?
In 2024, Mark Chadwick Soileau, M.D. had 102 Medicare Part D claims for 62 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.