MARSHALL S ST. AMANT M.D.
NPI 1649279969
Obstetrics & Gynecology - Maternal & Fetal Medicine in Baton Rouge, LA
NPI Status: Active since July 19, 2005
Contact Information
100 WOMANS WAY
BATON ROUGE, LA
ZIP 70817
Phone: (225) 924-8338
- Individual
- Male
- Obstetrics & Gynecology
- Maternal & Fetal Medicine
- Accepts Insurance
- PECOS Enrolled
About MARSHALL ST. AMANT
This page provides the complete NPI Profile along with additional information for Marshall St. Amant, a women's health care provider established in Baton Rouge, Louisiana with a medical specialization in Obstetrics & Gynecology, focusing in maternal & fetal medicine . The healthcare provider is registered in the NPI registry with number 1649279969 assigned on July 2005. The practitioner's primary taxonomy code is 207VM0101X with license number 017767 (LA). The provider is registered as an individual and his NPI record was last updated 2 years ago.
- NPI
- 1649279969
- Provider Name
- MARSHALL S ST. AMANT M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 100 WOMANS WAY BATON ROUGE, LA 70817
- Location Phone
- (225) 924-8338
- Mailing Address
- 100 WOMANS WAY BATON ROUGE, LA 70817
- Mailing Phone
- (225) 924-8338
- Mailing Fax
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-19-2005
- Last Update Date
- 03-14-2023
- Code Navigator
Women's health care providers like Marshall St. Amant treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.
Location Map
Secondary Locations
- 9000 Airline Hwy Ste 370
Baton Rouge, LA 70815
(225) 924-8338 - 4600 Ambassador Caffery Pkwy
Lafayette, LA 70508
(337) 521-9100 - 4630 Ambassador Caffery Pkwy Ste 204
Lafayette, LA 70508
(337) 470-4653 - 309 Jackson St
Monroe, LA 71201
(318) 966-4000
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Obstetrics & Gynecology Maternal & Fetal Medicine
- Taxonomy Code
- 207VM0101X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 017767
- License State
- LA
- Taxonomy Description
- An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Max 70/50 $6700 - PPO
- Blue Max 90/70 $1500 - PPO
- Blue Max Copay (PCP, Specialist, Urgent Care) 50/50 $3300 - PPO
- Blue Max Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan - PPO
- Blue Max Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan - PPO
- Blue Max Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan - PPO
- Blue Saver 60/40 $6100 - PPO
- Blue Saver 90/70 $3200 - PPO
- CHRISTUS Bronze - HMO
- CHRISTUS Bronze Essential - HMO
- CHRISTUS Bronze Essential Plus - HMO
- CHRISTUS Bronze Plus - HMO
- CHRISTUS Catastrophic - HMO
- CHRISTUS Gold - HMO
- CHRISTUS Gold Essential - HMO
- CHRISTUS Gold Essential Plus - HMO
- CHRISTUS Gold Plus - HMO
- CHRISTUS Silver - HMO
- CHRISTUS Silver Essential - HMO
- CHRISTUS Silver Essential Plus - HMO
- CHRISTUS Silver Plus - HMO
- CHRISTUS Standard Expanded Bronze - HMO
- CHRISTUS Standard Gold - HMO
- CHRISTUS Standard Silver - HMO
- Blue Connect 80/60 $3200 (L) - POS
- Blue Connect 80/60 $3200 (N) - POS
- Blue Connect 80/60 $3200 (S) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan (L) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan (N) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan (S) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan (L) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan (N) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan (S) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan (L) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan (N) - POS
- Blue Connect Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan (S) - POS
- Blue POS 60/40 $6500 - POS
- Blue POS 70/50 $4550 - POS
- Blue POS 80/60 $3200 - POS
- Blue POS Copay (PCP, Specialist, Urgent Care) 50/50 $7500 Standardized Plan - POS
- Blue POS Copay (PCP, Specialist, Urgent Care) 60/40 $5000 Standardized Plan - POS
- Blue POS Copay (PCP, Specialist, Urgent Care) 75/55 $1500 Standardized Plan - POS
- Blue POS Copay (PCP, Specialist, Urgent Care) 80/60 $1000 - POS
- Community Blue 80/60 $3200 - POS
- Essential Bronze 6500 - POS
- Essential Gold 1500 - POS
- Freedom Silver 4000 - POS
- Savings Bronze 7700 - POS
- Standard Bronze 7500 - POS
- Standard Gold 1500 - POS
- Standard Silver 5000 - POS
- UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) - EPO
- UHC Bronze Standard (No Referrals) - EPO
- UHC Bronze Value ($5 Tier 2 Rx, No Referrals) - EPO
- UHC Bronze Value+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) - EPO
- UHC Gold Advantage ($5 Tier 2 Rx, No Referrals) - EPO
- UHC Gold Advantage+ ($0 Virtual Urgent Care, $5 Tier 2 Rx, Dental + Vision, No Referrals) - EPO
- UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $3 Tier 2 Rx, $0 Insulin, No Referrals) - EPO
- UHC Gold Standard (No Referrals) - EPO
- UHC Silver Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, No Referrals) - EPO
- UHC Silver Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, Dental + Vision, No Referrals) - EPO
- UHC Silver Standard - EPO
- UHC Silver Value ($0 Virtual Urgent Care, $3 Tier 2 Rx, No Referrals) - EPO
- UHC Silver Value+ ($0 Virtual Urgent Care, $3 Tier 2 Rx, Dental + Vision, No Referrals) - EPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Marshall St. Amant is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Physician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 70817 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99204
- Average New Patient Price $124.6
- Minimum New Patient Price $53.43
- Maximum New Patient Price $164.73
- Average New Patient Copayment $31.15
- Minimum New Patient Copayment $13.35
- Maximum New Patient Copayment $41.18
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $67.06
- Minimum Established Patient Price $16.64
- Maximum Established Patient Price $133.62
- Average Established Patient Copayment $16.76
- Minimum Established Patient Copayment $4.16
- Maximum Established Patient Copayment $33.4
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 6 | 4 | 9 | 2 | 7 | 9 | 9 | 6 | 9 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 8 | 9 | 4 | 7 | 18 | 9 | 12 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 8 + 9 + 4 + 7 + 1 + 8 + 9 + 1 + 2 + 24 = 81 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 90 - 81 = 9 | 9 | ||||||||
The NPI number 1649279969 is valid because the calculated check digit 9 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1396825816 | MARCIA LYNN GREMILLION M.D. Individual | Radiology (Diagnostic Radiology) | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8264 |
| 1275613705 | STEVEN CHARLES SOTILE M.D. Individual | Radiology (Diagnostic Radiology) | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8264 |
| 1730269259 | ELIZABETH GAY WINTERS M.D. Individual | Radiology (Diagnostic Radiology) | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8264 |
| 1699821298 | MISTY MANUEL NORMAN MD Individual | Radiology (Diagnostic Radiology) | 100 WOMANS WAY DEPARTMENT OF RADIOLOGY, WOMEN'S HOSPITAL BATON ROUGE, LA 70817 (225) 924-8267 |
| 1639259153 | JOHN OTTO LOVRETICH M.D. Individual | Radiology (Diagnostic Radiology) | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8264 |
| 1104911825 | LESLIE MCLIN CRNA Individual | Nurse Anesthetist, Certified Registered | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 293-2523 |
| 1336463355 | MARLO C MARTIN CRNA Individual | Nurse Anesthetist, Certified Registered | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 293-2523 |
| 1003365784 | WOMANS HOSPITAL FOUNDATION Organization | Pharmacy | 100 WOMANS WAY SUITE SSB1 BATON ROUGE, LA 70817 (225) 924-8199 |
| 1043742471 | KHAKI RENEE HAZZLERIGG FNP-C Individual | Nurse Practitioner (Family) | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 927-1300 |
| 1992204218 | WOMAN'S HOSPITAL FOUNDATION Organization | Clinical Medical Laboratory | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8101 |
| 1750880068 | BRITTANY S MUSSO CRNA Individual | Anesthesiology | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8149 |
| 1528567849 | MICHELLE B BAJON CRNA Individual | Anesthesiology | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8149 |
| 1497254502 | NIA'JA STE'VONA MACK FNP-C Individual | Nurse Practitioner (Family) | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8999 |
| 1235114042 | JAN BENANTI MD Individual | Obstetrics & Gynecology | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8189 |
| 1619948197 | VERNON D. COFFMAN MD Individual | Anesthesiology | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 293-2523 |
| 1821557521 | NICKOLAS A SKIAS CRNA Individual | Anesthesiology | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8149 |
| 1811976269 | DR. JEFFREY GERALD BREAUX M.D. Individual | Obstetrics & Gynecology | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 927-1300 |
| 1497214191 | MR. MARIO PEREZ-PENA CRNA Individual | Nurse Anesthetist, Certified Registered | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 924-8149 |
| 1841265576 | BARBARA DUFF GRIFFITH M.D. Individual | Emergency Medicine | 100 WOMANS WAY BATON ROUGE, LA 70817 (252) 927-1300 |
| 1053630947 | CHRISTIE MOREAU CRNA Individual | Nurse Anesthetist, Certified Registered | 100 WOMANS WAY BATON ROUGE, LA 70817 (225) 293-2523 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1649279969, enumerated in the NPI registry as an "individual" on July 19, 2005
The provider is located at 100 Womans Way Baton Rouge, La 70817 and the phone number is (225) 924-8338
The provider's speciality is Obstetrics & Gynecology with taxonomy code 207VM0101X with a focus in Maternal & Fetal Medicine
The provider might be accepting Accepts: Blue Cross and Blue Shield of Louisiana, CHRISTUS. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
Medicare beneficiaries should expect a typical cost of $124.6 with an average copayment of $31.15 for new patient appointments. Established patients should expect a typical charge of $67.06 and an average copayment of 16.76. Please review your insurance plan or contact the provider directly to determine your specific costs.
This NPI record was last updated on July 19, 2005. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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