Marissa Diaz, PA - Medicare Physician Assistant in Raceland, LA

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Marissa Diaz, PA is a medicare enrolled "Physician Assistant" in Raceland, Louisiana. She graduated from nursing school in 2015 and has 11 years of diverse experience with area of expertise as Physician Assistant. She is a member of the group practice Ochsner Clinic Llc, Lafourche Parish Hospital Service District No 1 and her current practice location is 141 Twin Oaks Dr, Raceland, Louisiana. You can reach out to her office (for appointments etc.) via phone at (985) 537-2666.

Marissa Diaz is licensed to practice in Louisiana (license number 200840) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1518346394.

Contact Information

Marissa Diaz, PA
141 Twin Oaks Dr,
Raceland, LA 70394-2761
(985) 537-2666
(985) 537-1986

Map and Direction




Provider's Profile

Full NameMarissa Diaz
GenderFemale
SpecialityPhysician Assistant
Experience11 Years
Location141 Twin Oaks Dr, Raceland, Louisiana
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marissa Diaz graduated from nursing school in 2015
  NPI Data:
  • NPI Number: 1518346394
  • Provider Enumeration Date: 05/26/2015
  • Last Update Date: 08/06/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 4587979380
  • Enrollment ID: I20150821013624

Medical Identifiers

Medical identifiers for Marissa Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518346394NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 200840 (Louisiana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ochsner St Anne General HospitalRaceland, LAHospital
Lady Of The Sea General HospitalCut off, LAHospital
Ochsner Medical CenterNew orleans, LAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ochsner Clinic Llc82249336192845
Lafourche Parish Hospital Service District No 1226434222923

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Marissa Diaz allows following entities to bill medicare on her behalf.
Entity NameOchsner Clinic LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538151428
PECOS PAC ID: 8224933619
Enrollment ID: O20031126000513
Entity NameSt Joseph Medical Clinic a Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1255348843
PECOS PAC ID: 9335189109
Enrollment ID: O20050921000039
Entity NameOchsner Bayou LLC
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1871648766
PECOS PAC ID: 0244242840
Enrollment ID: O20080222000183

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Marissa Diaz is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Marissa Diaz, PA
141 Twin Oaks Dr,
Raceland, LA 70394-2761

Ph: (985) 537-2666		Marissa Diaz, PA
141 Twin Oaks Dr,
Raceland, LA 70394-2761

Ph: (985) 537-2666

Reviews and Comments


Physician Assistant Nurses in Raceland, LA

Christine C Thistlethwaite, PA
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 141 Twin Oaks Dr, Raceland, LA 70394
Phone: 985-537-2666    Fax: 985-537-1986
Mary Breaux Rodrigue, PA
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 4912 Highway 1, Raceland, LA 70394
Phone: 985-532-2387    
Carsyn Touzet,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 111 Acadia Park Dr, Raceland, LA 70394
Phone: 985-537-7575    
Adele Elise Broussard, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 141 Twin Oaks Dr, Raceland, LA 70394
Phone: 985-537-2666    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.