Mary Brown, B.S.N.
Mary Brown, B.S.N. is a provider specialising in Nursing Care Agency in Stony Brook, NY, registered under NPI 1538463013. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 207 HALLOCK RD STE 201, Stony Brook, NY 11790. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 358070-1 | NY | Nursing Care Agency primary |
This provider holds licence 358070-1 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 Nursing Care covers
A Nursing Care Agency is an entity that provides skilled nursing care through the services of a Registered Nurse (RN) or a Licensed Practical Nurse (LPN), by employees, contracted individuals, or via a registry, in a variety of settings. The agency may engage in providing private duty nursing and/or staffing services. NUCC Health Care Provider Taxonomy, code 251J00000X
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 | 1538463013 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 27, 2010 |
| Last updated | Dec 27, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | B.S.N. |
| Practice address |
207 HALLOCK RD STE 201 Stony Brook, NY 11790 (631) 689-8920 Fax (631) 689-8955 |
| Mailing address |
249 W LAKE DR Montauk, NY 11954 |
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 | 5 | 3 | 8 | 4 | 6 | 3 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 6 | 8 | 8 | 6 | 6 | 0 | 2 |
Sum = 67 · next multiple of 10 = 70 · check digit = 3 · actual last digit = 3
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.