NPPES file of Aug 9, 2026

Marissa D. Guidry, FNP-C

Family Nurse Practitioner · Lafayette, LA

Marissa D. Guidry, FNP-C is a family nurse practitioner with a practice address in Lafayette, Louisiana, and NPI 1265864599, issued on Aug 9, 2013. Check the license (Louisiana AP07367, 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
1265864599
Name
Marissa D. Guidry
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP07367 LA
Self-reported in NPPES; status is on the state search
Practice location
461 Heymann Blvd, Lafayette, LA 70503
Phone
(337) 289-8717
Enumerated
Aug 9, 2013
Record last updated
Dec 8, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(337) 289-8718
Medicare enrollment
Enrolled (PECOS I20131202001328); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 461 Heymann Blvd

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

  1. Bradley Chastant, M.D.Internal Medicine Physician1003074907
  2. Daniela Leon Jarrin, MDInternal Medicine Physician1851814032
  3. Karen Smith, MDInternal Medicine Physician1942293329
  4. Angela Snow, M.D.Internal Medicine Physician1538368345
  5. Thomas Voitier, M.D.Internal Medicine Physician1598906570

Verify Marissa D. Guidry 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 AP07367
    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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61% more Medicare Part D claims than the average family nurse practitioner in 2024

2,101 Medicare Part D claims for 620 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 30 claims were for opioids.

  1. Marissa Guidry2,101
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate112 claims
  2. Trazodone Hcl96 claims
  3. Losartan Potassium93 claims
  4. Escitalopram Oxalate85 claims
  5. Levothyroxine Sodium69 claims
  6. Pantoprazole Sodium66 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.

Industry payments in 2024: $1,089.61

63 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marissa Guidry$1,089.61
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Lafayette Health Ventures IncLafayette, LA

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

Marissa D. Guidry among 4,503 family nurse practitioner records in Louisiana

Marissa D. Guidry, FNP-C 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 2013, is newer than 24% of them.

  • NPI issued2013 · 24% of these records are older, 72% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2013 · median 2018 among the 2,959 with a school on file
  • Record last updated2017 · 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).

324 family nurse practitioner records list a practice address in Lafayette

They are 324 of the 5,181 NPPES records with a practice address in Lafayette, and 4,503 family nurse practitioner records in Louisiana.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Allison Bertrand, N.P.Lafayette, LA 705031295010288
  2. Ann Campos-Adkins, RN, FNPLafayette, LA 705031740231711
  3. Samona Drexler, NPLafayette, LA 705031124323902
  4. Mary Duhon, RN, FNPLafayette, LA 705031568413227
  5. Tamera Fontenot, NPLafayette, LA 705031306955448
  6. Mark Landry, NPLafayette, LA 705031679518823
  7. Loryn Matthews, NPLafayette, LA 705031205199643
  8. Christy McDonald Lenahan, FNP-BCLafayette, LA 705031497912414

Common questions

What is Marissa D. Guidry, FNP-C's NPI number?

Marissa D. Guidry, FNP-C's National Provider Identifier (NPI) is 1265864599, issued on Aug 9, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Marissa D. Guidry, FNP-C located?

The NPPES record lists a practice address at 461 Heymann Blvd, Lafayette, LA, 70503. Phone: (337) 289-8717. Providers update this record themselves, so call before visiting.

How can I verify Marissa D. Guidry, FNP-C's license?

NPPES lists Louisiana license number AP07367, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.

How much does Marissa D. Guidry, FNP-C prescribe under Medicare Part D?

In 2024, Marissa D. Guidry, FNP-C had 2,101 Medicare Part D claims for 620 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.