NPPES file of Aug 9, 2026

Demi Armbruster, FNP-C

Family Nurse Practitioner · Prairieville, LA

Demi Armbruster, FNP-C is a family nurse practitioner with a practice address in Prairieville, Louisiana, and NPI 1366194284, issued on Jan 21, 2022. Check the license (Louisiana 202407, 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
1366194284
Name
Demi Armbruster
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
202407 LA
Self-reported in NPPES; status is on the state search
Practice location
37358 Market Place Dr, Prairieville, LA 70769
Phone
(888) 360-0909
Enumerated
Jan 21, 2022
Record last updated
Apr 27, 2025
Medicare enrollment
Enrolled (PECOS I20220222000924); 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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Verify Demi Armbruster 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 202407
    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
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76% fewer Medicare Part D claims than the average family nurse practitioner in 2024

309 Medicare Part D claims for 231 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Demi Armbruster309
  2. Specialty average1,305

Most prescribed

  1. Amoxicillin-Clavulanate Potass42 claims
  2. Doxycycline Hyclate33 claims
  3. Prednisone28 claims
  4. Mupirocin19 claims
  5. Amoxicillin16 claims
  6. Azithromycin14 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

  1. Red Stick Emergency Group LLCPrairieville, LA

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

26 family nurse practitioner records list a practice address in Prairieville

They are 26 of the 493 NPPES records with a practice address in Prairieville, 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 Demi Armbruster, FNP-C's NPI number?

Demi Armbruster, FNP-C's National Provider Identifier (NPI) is 1366194284, issued on Jan 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Demi Armbruster, FNP-C located?

The NPPES record lists a practice address at 37358 Market Place Dr, Prairieville, LA, 70769. Phone: (888) 360-0909. Providers update this record themselves, so call before visiting.

How can I verify Demi Armbruster, FNP-C's license?

NPPES lists Louisiana license number 202407, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.

How much does Demi Armbruster, FNP-C prescribe under Medicare Part D?

In 2024, Demi Armbruster, FNP-C had 309 Medicare Part D claims for 231 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.