Stephanie Dumas
Stephanie Dumas is a Specialist in Lexington, MA, registered under NPI 1003143371. 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 Lexington, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 194 ft away. The nearest transit stop is 557 ft away, served by Massachusetts Ave opp Clark St. A pharmacy sits 0.43 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 774 ft away.
Getting here and what is nearby
Parking 119 ft ~1 min
Parking 164 ft ~1 min
Parking 194 ft ~1 min
Transit Massachusetts Avenue-MBTA Stop 485 ft ~2 min
Transit Massachusetts Ave @ Clarke St 502 ft ~2 min
Transit Massachusetts Ave opp Clark St 557 ft ~3 min
Coffee Via Lago (Closed) 603 ft ~3 min
Restaurant Avenue Deli 607 ft ~3 min
1806 Massachusetts Avenue, Lexington 02420
Mo-Fr 09:30-17:00; Sa 09:30-16:00; Su off
Coffee Sweet Thyme Bakery 613 ft ~3 min
1837 Massachusetts Avenue, Lexington 02420
Mo-Tu off; We-Su 12:00-17:30
Pharmacy Theater Pharmacy 678 ft ~3 min
Restaurant Royal India Bistro 678 ft ~3 min
Restaurant Sanyo 713 ft ~3 min
25 Depot Square, Lexington 02420
Coffee CoCo Fresh Tea & Juice 774 ft ~3 min
Pharmacy CVS Pharmacy 969 ft ~4 min
Hotel The Inn at Hastings Park 0.34 mi ~7 min
Grocery Stop & Shop 0.35 mi ~7 min
36 Bedford Street, Lexington 02420
Mo-Sa 07:00-22:00; Su 07:00-21:00
Gas station Gulf 0.36 mi ~8 min
Pharmacy Walgreens 0.43 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Specialist covers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree. NUCC Health Care Provider Taxonomy, code 174400000X
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 | 1003143371 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 7, 2009 |
| Last updated | Nov 7, 2009 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
16 CLARKE ST SUITE 13 Lexington, MA 02421 (781) 860-5116 Fax (781) 860-5119 |
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 | 4 | 3 | 3 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 6 | 3 | 5 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.