Marissa Marie Hartman, FNP - Medicare Nurse Practitioner in Slidell, LA

Marissa Marie Hartman, FNP is a medicare enrolled "Nurse Practitioner - Family" in Slidell, Louisiana. She graduated from nursing school in 2024 and has 2 years of diverse experience with area of expertise as Nurse Practitioner. She is a member of the group practice Dr Douglas Mehaffie Md Llc and her current practice location is 1389 Lakewood Dr Ste B, Slidell, Louisiana. You can reach out to her office (for appointments etc.) via phone at (504) 919-3850.

Marissa Marie Hartman is licensed to practice in Louisiana (license number 205508) 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 1619861721.

Contact Information

Marissa Marie Hartman, FNP
1389 Lakewood Dr Ste B,
Slidell, LA 70458-3127
(504) 919-3850
Not Available

Map and Direction




Provider's Profile

Full NameMarissa Marie Hartman
GenderFemale
SpecialityNurse Practitioner
Experience2 Years
Location1389 Lakewood Dr Ste B, Slidell, 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 Marie Hartman graduated from nursing school in 2024
  NPI Data:
  • NPI Number: 1619861721
  • Provider Enumeration Date: 06/04/2025
  • Last Update Date: 06/04/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8820581473
  • Enrollment ID: I20251203001039

Medical Identifiers

Medical identifiers for Marissa Marie Hartman such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1619861721NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family 205508 (Louisiana)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dr Douglas Mehaffie Md Llc701204869717

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 Marie Hartman 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 Marie Hartman, FNP
126 Dillon Dr,
Slidell, LA 70461-4239

Ph: (504) 919-3850
Marissa Marie Hartman, FNP
1389 Lakewood Dr Ste B,
Slidell, LA 70458-3127

Ph: (504) 919-3850

Reviews and Comments


Nurse Practitioner Nurses in Slidell, LA

Richard Todd Cooper, NP
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Laura Janette Pichon,
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Ms. Holly Lorraine Solnick, N.P.
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Mrs. Jeanne Bienvenu Dakin, CPNP
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Medicare: Not Enrolled in Medicare
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Phone: 985-646-5488    Fax: 985-646-5720
Dr. Tonjanika R. Webster, DNP, APRN, PMHNP-BC
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Medicare: Not Enrolled in Medicare
Practice Location: 636 Gause Blvd Ste 304, Slidell, LA 70458
Phone: 504-313-5002    
Rachel Gardette, NP
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Medicare: Not Enrolled in Medicare
Practice Location: 370 Gateway Dr Ste B, Slidell, LA 70461
Phone: 985-290-2135    
Pleshetta Dewan Jackson, FNP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 2750 Gause Blvd E, Slidell, LA 70461
Phone: 985-639-3777    Fax: 985-661-3520

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.