Mariana Stone, NP-C
Mariana Stone, NP-C is a Family Medicine Physician in Boston, MA, registered under NPI 1003394396.
Getting there
Here is what surrounds this office in Boston, based on OpenStreetMap data collected Sep 23, 2026. Parking is available about 0.21 mi away. There is EV charging 0.33 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 279 ft away, served by Devonshire St @ State St. A pharmacy sits 0.34 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 529 ft away.
Getting here and what is nearby
Transit State Street Station 74 ft ~1 min
Transit Congress St @ State St 121 ft ~1 min
Transit Devonshire St @ State St 279 ft ~2 min
Hotel Hyatt Centric Faneuil 282 ft ~2 min
Restaurant Boloco 255 ft ~1 min
50 Congress Street, Boston 02109
Restaurant Zo Greek 321 ft ~2 min
Coffee The Well 397 ft ~2 min
Convenience BNC Market 404 ft ~2 min
226 Washington Street
Restaurant Dunkin' 442 ft ~2 min
111 State Street, Boston 02109
Mo-Fr 06:00-17:00; Sa-Su 07:00-16:00
Coffee Boston News Cafe 506 ft ~2 min
28 State Street
Coffee Tatte Bakery & Cafe 529 ft ~3 min
Grocery Pepper Palace 515 ft ~2 min
Hotel Marriott Vacation Club Pulse® at Custom House 722 ft ~3 min
Convenience 7-Eleven 772 ft ~3 min
EV charging ChargePoint 894 ft ~4 min
Convenience 7-Eleven 899 ft ~4 min
Hotel The Langham Boston 872 ft ~4 min
Parking The Garage at Post Office Square 881 ft ~4 min
Pharmacy CVS Pharmacy 914 ft ~4 min
Parking Dock Square Parking Garage 969 ft ~4 min
20-30 Clinton Street, Boston 02109
Parking 0.21 mi ~5 min
350 Washington Street, Boston 02110
Grocery Roche Bros. 0.29 mi ~6 min
8 Summer Street, Boston 02110
Mo-Sa 07:00-21:00; Su 08:00-20:00
Pharmacy CVS Pharmacy 0.30 mi ~7 min
EV charging ChargePoint 0.33 mi ~7 min
Pharmacy CVS Pharmacy 0.34 mi ~7 min
Mo-Fr 07:00-21:00; Sa 08:00-20:00; Su 09:00-19:00
Grocery Golden Goose Market 0.35 mi ~8 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 |
|---|---|---|
| F07181373 | MA | Family Medicine Physician primary |
This provider holds licence F07181373 issued in MA. 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003394396 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 30, 2018 |
| Last updated | Aug 25, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | NP-C |
| Practice address |
53 STATE ST Boston, MA 02109 (888) 663-6331 |
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 | 9 | 4 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 9 | 8 | 3 | 9 |
Sum = 64 · next multiple of 10 = 70 · 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.