Maria Grubman, FAMILY NP
Maria Grubman, FAMILY NP is a Family Nurse Practitioner in Bay Shore, NY, registered under NPI 1003469032.
Getting there
Here is what surrounds this office in Bay Shore, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 0.34 mi away.
Getting here and what is nearby
Restaurant Dunkin' 533 ft ~3 min
Grocery Stop & Shop 808 ft ~4 min
533 Montauk HwyRte. 27A, Bayshore 11706
Mo-Su 07:00-22:00
Gas station Shamrock Gas Station 869 ft ~4 min
Restaurant Taco Bell 823 ft ~4 min
490 East Main Street, Bay Shore 11706
07:00-05:00
Hotel Travelodge 885 ft ~4 min
Parking 926 ft ~4 min
Convenience 7-Eleven 0.20 mi ~4 min
12 Saxon Avenue;North Saxon Avenue, Islip;Bay Shore 11706
Parking 0.21 mi ~5 min
Restaurant McDonald's 0.23 mi ~5 min
Convenience Busy Bee 0.29 mi ~6 min
Gas station Valero 0.30 mi ~6 min
Parking 0.34 mi ~7 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 |
|---|---|---|
| F3440191 | NY | Family Nurse Practitioner primary |
This provider holds licence F3440191 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 2163750159
- Enrollment ID
- I20190829001436
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Family covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
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 | 1003469032 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 18, 2019 |
| Last updated | May 23, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | FAMILY NP |
| Practice address |
440 E MAIN STREET Bay Shore, NY 11706 (631) 414-6999 |
| Mailing address |
559 FIRE ISLAND AVE Babylon, NY 11702 |
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 | 4 | 6 | 9 | 0 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 6 | 9 | 0 | 6 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.