Marilyn Poston, RN, IBCLC
Marilyn Poston, RN, IBCLC is a Lactation Consultant (Registered Nurse) in Leesville, LA, registered under NPI 1003352006. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Leesville, based on OpenStreetMap data collected Sep 20, 2026. Parking is available about 881 ft away. A pharmacy sits 0.32 mi from the entrance (Leesville Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Parking 683 ft ~3 min
Parking 881 ft ~4 min
Restaurant Burger King 0.24 mi ~5 min
1305 South 5th Street, Leesville 71446-4915
07:00-23:00
Restaurant Subway 0.24 mi ~5 min
1111 South 5th Street, Leesville 71446
Mo-Fr 08:00-22:00; Sa-Su 10:00-22:00
Convenience Fina Gas Station 0.27 mi ~6 min
Convenience Circle K 0.28 mi ~6 min
Pharmacy Leesville Pharmacy 0.32 mi ~7 min
Restaurant Domino's 0.38 mi ~8 min
1604 South 5th Street, Leesville 71446
Mo-Th 10:30-24:00; Fr-Sa 10:30-01:00; Su 10:30-24:00
Coffee Coure Coffee 0.47 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| L-31689 | LA | Lactation Consultant (Registered Nurse) primary |
This provider holds licence L-31689 issued in LA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Lactation Consultant covers
Definition to come... NUCC Health Care Provider Taxonomy, code 163WL0100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003352006 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 13, 2017 |
| Last updated | Jan 18, 2017 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | RN, IBCLC |
| Practice address |
919 S 10TH ST Leesville, LA 71446 (318) 452-9324 |
| Mailing address |
1060 GOOD HOPE RD Anacoco, LA 71403 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 3 | 5 | 2 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 5 | 4 | 0 | 0 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.