Marissa Guidry, FNP-C
NPI 1265864599 · Family Nurse Practitioner · Lafayette, LA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Guidry, FNP-C is a Family Nurse Practitioner provider in Lafayette, LA (NPI 1265864599).
Provider details
- NPI number
- 1265864599
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- AP07367 (LA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
892 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 611 | $100 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 90 | $102 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 49 | $72 |
| Administration of Influenza Virus VaccineG0008 | 29 | $30 |
| Administration of Pneumococcal VaccineG0009 | 26 | $30 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 24 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 53 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 112 | 45 |
| Trazodone Hcl | 96 | 33 |
| Losartan Potassium | 93 | 27 |
| Escitalopram Oxalate | 85 | 23 |
| Levothyroxine Sodium | 69 | 24 |
| Pantoprazole Sodium | 66 | 26 |
| Buspirone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,090 across 63 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-08-09
- Last updated
- 2017-12-08
Frequently asked questions
- What is Marissa Guidry's NPI number?
- Marissa Guidry's National Provider Identifier (NPI) is 1265864599, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Guidry's specialty?
- Marissa Guidry is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Guidry located?
- Marissa Guidry's practice location on file with NPPES is 461 Heymann Blvd, Lafayette, LA 70503-2616.
- What is Marissa Guidry's phone number?
- The practice phone number listed in the NPPES registry for Marissa Guidry is (337) 289-8717.
- Does Marissa Guidry accept Medicare?
- Marissa Guidry is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Guidry's NPI active?
- Yes — Marissa Guidry's NPI (1265864599) is active in the NPPES registry as of the last update on 2017-12-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.