Marshall S St Amant, MD - Medicare Obstetrics/gynecology in Baton Rouge, LA

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Marshall S St Amant, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Baton Rouge, Louisiana. He went to Louisiana State University School Of Medicine In New Orleans and graduated in 1984 and has 41 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Woman's Maternal Fetal Medicine, Thibodaux Regional Network Development Corporation and his current practice location is 100 Womans Way, Baton Rouge, Louisiana. You can reach out to his office (for appointments etc.) via phone at (225) 924-8338.

Marshall S St Amant is licensed to practice in Louisiana (license number 017767) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1649279969.

Contact Information

Marshall S St Amant, MD
100 Womans Way,
Baton Rouge, LA 70817-5100
(225) 924-8338
Not Available

Map and Direction




Physician's Profile

Full NameMarshall S St Amant
GenderMale
SpecialityObstetrics/gynecology
Experience41 Years
Location100 Womans Way, Baton Rouge, Louisiana
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Marshall S St Amant attended and graduated from Louisiana State University School Of Medicine In New Orleans in 1984
  NPI Data:
  • NPI Number: 1649279969
  • Provider Enumeration Date: 07/19/2005
  • Last Update Date: 03/14/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7315975257
  • Enrollment ID: I20050801000989

Medical Identifiers

Medical identifiers for Marshall S St Amant such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649279969NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine 017767 (Louisiana)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Woman's Maternal Fetal Medicine39714080636
Thibodaux Regional Network Development Corporation8224011754120

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. Marshall S St Amant allows following entities to bill medicare on his behalf.
Entity NameOchsner Clinic Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538151428
PECOS PAC ID: 8224933619
Enrollment ID: O20031126000513
Entity NameWoman's Maternal Fetal Medicine
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396780193
PECOS PAC ID: 3971408063
Enrollment ID: O20031203000051
Entity NameSt Francis Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437149168
PECOS PAC ID: 7810892718
Enrollment ID: O20031204000183
Entity NameLouisiana State University School Of Medicine In New Orleans Faculty G
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477582526
PECOS PAC ID: 0244136448
Enrollment ID: O20031209000661
Entity NameThibodaux Regional Network Development Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285658310
PECOS PAC ID: 8224011754
Enrollment ID: O20040608000132
Entity NameSt Tammany Parish Hospital Service District No 1
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598798597
PECOS PAC ID: 0749273761
Enrollment ID: O20051102000003
Entity NameLsuhn Billing Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992975775
PECOS PAC ID: 0446337802
Enrollment ID: O20080409000372
Entity NameNorth Oaks Medical Center Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962709501
PECOS PAC ID: 2466629522
Enrollment ID: O20120125000648
Entity NameLcms Maternal Fetal Medicine, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801198528
PECOS PAC ID: 8628231784
Enrollment ID: O20120530000136
Entity NameNorth Oaks Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427035211
PECOS PAC ID: 9133378870
Enrollment ID: O20121012000490
Entity NameLourdes Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437405883
PECOS PAC ID: 7214177757
Enrollment ID: O20130705000541

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. Marshall S St Amant 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
Marshall S St Amant, MD
100 Womans Way,
Baton Rouge, LA 70817-5100

Ph: (225) 924-8338		Marshall S St Amant, MD
100 Womans Way,
Baton Rouge, LA 70817-5100

Ph: (225) 924-8338

Reviews and Comments


Obstetrics & Gynecology Doctors in Baton Rouge, LA

Sarah Buzhardt, MD
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Practice Location: 500 Rue De La Vie, Suite 414, Baton Rouge, LA 70817
Phone: 225-215-7960    Fax: 225-922-3382
Anna Claire Saucier,
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Jeffrey L Janies, MD
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William D Binder, MD
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Dr. Carol M Patin, M.D.
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Dr. Kristin Bassett Chapman, MD
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Practice Location: 500 Rue De La Vie, Suite 210, Baton Rouge, LA 70817
Phone: 225-928-5951    Fax: 225-928-5535
Morgan Moore Bankston, M.D.
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Practice Location: 500 Rue De La Vie St Ste 100, Baton Rouge, LA 70817
Phone: 225-201-2000    

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).

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