Marie Alphonse
Marie Alphonse is a Registered Nurse in Brooklyn, NY, registered under NPI 1003138777. 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 Brooklyn, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.23 mi away. The nearest transit stop is 481 ft away, served by Bedford Avenue & Avenue D. A pharmacy sits 0.49 mi from the entrance (Kings Court Drugs), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.45 mi away.
Getting here and what is nearby
Transit Flatbush Avenue & Ditmas Avenue 147 ft ~1 min
Transit Flatbush Avenue & Avenue D 179 ft ~1 min
Restaurant Tacos El Dorado 147 ft ~1 min
1228 Flatbush Avenue, Brooklyn 11226
11:30-22:30
Parking 276 ft ~2 min
Pharmacy Al-Medina Pharmacy 258 ft ~1 min
Restaurant BunNan 295 ft ~2 min
1248 Flatbush Avenue, 11226
Tu-Sa 08:00-21:00; Su 11:00-21:00
Convenience Alex Deli Grocery 375 ft ~2 min
1256 Flatbush Avenue, 11226
Restaurant F1 Lounge 356 ft ~2 min
1254 Flatbush Avenue, Brooklyn 11226
Grocery C-Town 372 ft ~2 min
1188 Flatbush Avenue, Brooklyn 11226
Transit Bedford Avenue & Avenue D 481 ft ~2 min
Parking 492 ft ~2 min
Gas station Allegiance 550 ft ~3 min
1267 Flatbush Avenue, 11226
Convenience Carolin Grocery 682 ft ~3 min
Coffee We Are Brooklyn 836 ft ~4 min
1292 Flatbush Avenue, 11226
Parking 0.23 mi ~5 min
Convenience Snack Shack 0.36 mi ~8 min
2901 Avenue D, 11226
Grocery Key Food 0.38 mi ~8 min
1610 Cortelyou Road, Brooklyn 11226-5210
Mo-Sa 07:00-22:00; Su 08:00-20:00
Coffee Madeline 0.40 mi ~8 min
Hotel Brooklyn Vybe Hotel 0.41 mi ~9 min
Pharmacy Duane Reade 0.42 mi ~9 min
Grocery C-Town 0.44 mi ~9 min
1761 Nostrand Avenue, Brooklyn 11226
Coffee Coffee Mob 0.45 mi ~9 min
Pharmacy Kings Court Drugs 0.49 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 |
|---|---|---|
| 617322 | NY | Registered Nurse primary |
This provider holds licence 617322 issued in NY. 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 Registered Nurse covers
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span. NUCC Health Care Provider Taxonomy, code 163W00000X
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 | 1003138777 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 23, 2010 |
| Last updated | Feb 23, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
401 E 23RD ST Brooklyn, NY 11226 (347) 280-6035 |
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 | 1 | 3 | 8 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 3 | 7 | 7 | 5 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.