Stanley Klein, DDS
Stanley Klein, DDS is a provider specialising in Endodontics in Baltimore, MD, registered under NPI 1003209875. 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 Baltimore, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 811 ft away. There is EV charging 0.42 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 913 ft away, served by Ken Oak Road & Greenspring Avenue Eastbound. A pharmacy sits 0.47 mi from the entrance (Lifebridge Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.49 mi away.
Getting here and what is nearby
Transit Ken Oak Road & Greenspring Avenue Westbound 755 ft ~3 min
Parking 768 ft ~3 min
Parking 806 ft ~4 min
Parking 811 ft ~4 min
Transit Cross Country Boulevard & Sulgrave Avenue Northbound 886 ft ~4 min
Transit Ken Oak Road & Greenspring Avenue Eastbound 913 ft ~4 min
EV charging 0.38 mi ~8 min
EV charging 0.42 mi ~9 min
Pharmacy Lifebridge Pharmacy 0.47 mi ~10 min
Mo-Fr 07:00-21:00;Sa-Su 09:00-17:00
Restaurant Subway 0.48 mi ~10 min
Coffee The MarketPlace at Sinai 0.49 mi ~10 min
Mo-Fr 06:30-24:00;Sa-Su 09:00-24:00
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 |
|---|---|---|
| 4175 | MD | Endodontics primary |
This provider holds licence 4175 issued in MD. 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 Endodontics covers
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions. NUCC Health Care Provider Taxonomy, code 1223E0200X
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 | 1003209875 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 18, 2015 |
| Last updated | Mar 18, 2015 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | DDS |
| Practice address |
2215 KEN OAK ROAD Baltimore, MD 21209 (443) 271-3682 |
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 | 2 | 0 | 9 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 0 | 9 | 8 | 5 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.