NPPES file of Aug 9, 2026

Mark William Gremillion, CRNA

Certified Registered Nurse Anesthetist · Marksville, LA

Mark William Gremillion, CRNA is a certified registered nurse anesthetist with a practice address in Marksville, Louisiana, and NPI 1700917242, issued on Mar 8, 2007. Check the license (Louisiana AP01822, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1700917242
Name
Mark William Gremillion
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
AP01822 LA
Self-reported in NPPES; status is on the state search
Practice location
4231 Highway 1192, Marksville, LA 71351
Phone
(318) 253-8611
Enumerated
Mar 8, 2007
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
1391298 LA
Medicare enrollment
Enrolled (PECOS I20100826000084); 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.
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Also registered at 4231 Highway 1192

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

  1. Kera Cazelot, WHNPWomen's Health Nurse Practitioner1033806922
  2. Javeed Khan, M.D.Surgery Physician1780823906
  3. Michael St. Romain, MDEmergency Medical Services (Emergency Medicine) Physician1063465813

Verify Mark William Gremillion in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
    Search for license AP01822
    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
Find 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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Bills Medicare through one group practice

  1. Sayer And Soileau Anesthesia LLCVidalia, LA

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

Mark William Gremillion among 1,819 certified registered nurse anesthetist records in Louisiana

Mark William Gremillion, CRNA is one of 1,819 certified registered nurse anesthetist records with a practice address in Louisiana. 80% 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 34% of them.

  • NPI issued2007 · 34% of these records are older, 56% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated1982 · median 2011 among the 1,412 with a school on file
  • Record last updated2007 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 certified registered nurse anesthetist records list a practice address in Marksville

They are 2 of the 166 NPPES records with a practice address in Marksville, and 1,819 certified registered nurse anesthetist records in Louisiana.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Janet Sayer, CRNAMarksville, LA 713511851361158
  2. Zachary Lachney, DNP, CRNA, APRNMansura, LA 713501780445452
  3. Brian Blakewood, CRNAPineville, LA 713601457417842
  4. April Gregory, CRNA,MHSPineville, LA 713601598874190
  5. Marianne Harper, CRNAPineville, LA 713601578556395
  6. Glynis Quebedeaux, CRNAPineville, LA 713601942302179
  7. Leann Wooten, CRNA-MSNAPineville, LA 713601295892453
  8. Martin Lacour, CRNAPineville, LA 713611134208747

Common questions

What is Mark William Gremillion, CRNA's NPI number?

Mark William Gremillion, CRNA's National Provider Identifier (NPI) is 1700917242, issued on Mar 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark William Gremillion, CRNA located?

The NPPES record lists a practice address at 4231 Highway 1192, Marksville, LA, 71351. Phone: (318) 253-8611. Providers update this record themselves, so call before visiting.

How can I verify Mark William Gremillion, CRNA's license?

NPPES lists Louisiana license number AP01822, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity 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.