NPPES file of Aug 9, 2026

Mark Collier, FNP

Family Nurse Practitioner · Belle Chasse, LA

Mark Collier, FNP is a family nurse practitioner with a practice address in Belle Chasse, Louisiana, and NPI 1861499972, issued on Jul 5, 2005. Check the license (Louisiana 89346-3582, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861499972
Name
Mark Collier
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
89346-3582 LA
Self-reported in NPPES; status is on the state search
Practice location
8200 Highway 23, Belle Chasse, LA 70037
Phone
(504) 398-1100
Enumerated
Jul 5, 2005
Record last updated
Oct 21, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(504) 398-1030
Medicaid ID
1575607 LA
Medicare enrollment
Enrolled (PECOS I20040901000063); 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 8200 Highway 23

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

  1. Jose Ale, AGNPFamily Nurse Practitioner1366187858
  2. Darria BourgeoisPsychiatric/Mental Health Nurse Practitioner1841882875
  3. Michael Chambers, MDGeneral Practice Physician1073776431
  4. Ashley Couvillion MaxwellFamily Nurse Practitioner1124652235
  5. Patrick Johnson, MDGeneral Practice Physician1922307818
  6. Dani Prest, FNP-CFamily Nurse Practitioner1467905299

Verify Mark Collier 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 89346-3582
    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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90% fewer Medicare Part D claims than the average family nurse practitioner in 2024

129 Medicare Part D claims for 94 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Mark Collier129
  2. Specialty average1,305

Most prescribed

  1. Doxycycline Hyclate13 claims
  2. Azithromycin12 claims
  3. Prednisone12 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 2 group practices

  1. Lcmc Urgent Care LLCNew Orleans, LA
  2. New Orleans Physician Services IncMarrero, LA

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

8 family nurse practitioner records list a practice address in Belle Chasse

They are 8 of the 128 NPPES records with a practice address in Belle Chasse, and 4,503 family nurse practitioner records in Louisiana.

Other family nurse practitioner records in Louisiana

  1. Julianna Aaron, FNP-CShreveport, LA1922466788
  2. Cayla Abad, FNP-CBaton Rouge, LA1518611706
  3. Brooke Abadie, NPBaton Rouge, LA1013833565
  4. Tori AbbessBaton Rouge, LA1881433324
  5. Kimberly Abbott, N.P.Prairieville, LA1740203041
  6. Halimo Abdi, APRNLafayette, LA1053041491
  7. Karen Abel, APRN, CFNPIowa, LA1952475717
  8. Michael Abernathy, FNP-CNew Orleans, LA1518891142
  9. Amy Ables, NPBaton Rouge, LA1649919986
  10. Sh'Derrica Abner, FNPShreveport, LA1972368546

Common questions

What is Mark Collier, FNP's NPI number?

Mark Collier, FNP's National Provider Identifier (NPI) is 1861499972, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark Collier, FNP located?

The NPPES record lists a practice address at 8200 Highway 23, Belle Chasse, LA, 70037. Phone: (504) 398-1100. Providers update this record themselves, so call before visiting.

How can I verify Mark Collier, FNP's license?

NPPES lists Louisiana license number 89346-3582, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.

How much does Mark Collier, FNP prescribe under Medicare Part D?

In 2024, Mark Collier, FNP had 129 Medicare Part D claims for 94 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.