NPPES file of Aug 9, 2026

Mary Truxillo Mercer, NP

Family Nurse Practitioner · Terrytown, LA

Mary Truxillo Mercer, NP is a family nurse practitioner with a practice address in Terrytown, Louisiana, and NPI 1891218657, issued on Jul 24, 2017. Check the license (Louisiana AP09487, 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
1891218657
Name
Mary Truxillo Mercer
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP09487 LA
Self-reported in NPPES; status is on the state search
Practice location
2500 Belle Chasse Hwy, Terrytown, LA 70056
Phone
(504) 392-3131
Enumerated
Jul 24, 2017
Record last updated
Mar 14, 2024
Medicare enrollment
Enrolled (PECOS I20171023000949); 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 2500 Belle Chasse Hwy

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

  1. Alyssa Allsop, APRN, NNPNeonatal Nurse Practitioner1487222022
  2. Dasha Arnold, CRNACertified Registered Nurse Anesthetist1356582332
  3. Brett Barrilleaux, MDAnesthesiology Physician1619505708
  4. Aimee Barrois, MSN, APRN, NNP-BCCritical Care Neonatal Nurse Practitioner1033663539
  5. Charles Belair, CRNACertified Registered Nurse Anesthetist1679500789
  6. Nicholas Bologna, PA-CPhysician Assistant1467183590

Verify Mary Truxillo Mercer 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 AP09487
    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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87% fewer Medicare Part D claims than the average family nurse practitioner in 2024

172 Medicare Part D claims for 103 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Mary Mercer172
  2. Specialty average1,305

Most prescribed

  1. Ibuprofen21 claims
  2. Amoxicillin-Clavulanate Potass18 claims
  3. Fluticasone Propionate15 claims
  4. Mupirocin13 claims
  5. Albuterol Sulfate Hfa12 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. Belle Chasse Emergency Group LLCTerrytown, LA
  2. Kenner Emergency Group LLCMarrero, LA

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

Mary Truxillo Mercer among 4,503 family nurse practitioner records in Louisiana

Mary Truxillo Mercer, NP is one of 4,503 family nurse practitioner records with a practice address in Louisiana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 43% of them.

  • NPI issued2017 · 43% of these records are older, 51% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2017 · median 2018 among the 2,959 with a school on file
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 family nurse practitioner records list a practice address in Terrytown

They are 7 of the 295 NPPES records with a practice address in Terrytown, and 4,503 family nurse practitioner records in Louisiana.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Terri Adams, FNPGretna, LA 700561801177175
  2. Janice Birkhoff, FNP-BCGretna, LA 700561952580839
  3. Constance Bonnet, FNP-CGretna, LA 700561184999617
  4. Leah Bowers, FNPGretna, LA 700561114983665
  5. Aimee Coulon, NPGretna, LA 700561821392895
  6. Leslie Faulkner, DNP, FNP-BCGretna, LA 700561750554945
  7. Bridgette Johnson, NPGretna, LA 700561376811067
  8. Kenya Knox-Lewis, APRN FNP-CGretna, LA 700561235486747

Common questions

What is Mary Truxillo Mercer, NP's NPI number?

Mary Truxillo Mercer, NP's National Provider Identifier (NPI) is 1891218657, issued on Jul 24, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mary Truxillo Mercer, NP located?

The NPPES record lists a practice address at 2500 Belle Chasse Hwy, Terrytown, LA, 70056. Phone: (504) 392-3131. Providers update this record themselves, so call before visiting.

How can I verify Mary Truxillo Mercer, NP's license?

NPPES lists Louisiana license number AP09487, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.

How much does Mary Truxillo Mercer, NP prescribe under Medicare Part D?

In 2024, Mary Truxillo Mercer, NP had 172 Medicare Part D claims for 103 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.