Ersilia Bostian, LCPC
Ersilia Bostian, LCPC is a Professional Counselor in Rockville, MD, registered under NPI 1003212846. 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 Rockville, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 491 ft away. There is EV charging 0.28 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 794 ft away, served by Middle Ln at Gibbs St. A pharmacy sits 0.35 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.24 mi away.
Getting here and what is nearby
Transit W Montgomery Av at N Adams St 157 ft ~1 min
Restaurant Bombay Bistro 138 ft ~1 min
98 West Montgomery Avenue, Rockville 20850
Mo-Th 17:00-21:00; Fr 11:30-14:30,16:00-21:30; Sa 12:00-15:00,16:00-21:30; Su 12:00-15:00,16:00-21:00
Transit W Montgomery Av at S Adams St 225 ft ~1 min
Parking 234 ft ~1 min
Parking 285 ft ~2 min
Restaurant Subway 281 ft ~2 min
2 North Washington Street, Rockville 20850
09:00-22:00
Restaurant Pelicana Chicken 291 ft ~2 min
4 North Washington Street, Rockville
Parking 491 ft ~2 min
Transit Middle Ln at Gibbs St 794 ft ~4 min
Gas station Exxon 877 ft ~4 min
200 North Washington Street, Rockville 20850
Coffee Starbucks 959 ft ~4 min
Grocery Trader Joe's 925 ft ~4 min
Coffee Kyoto Matcha 1,001 ft ~4 min
33 Maryland Avenue
Hotel Cambria Hotel Rockville 0.22 mi ~5 min
Gas station Shell 0.23 mi ~5 min
Coffee Amai Crêpe 0.24 mi ~5 min
199 East Montgomery Avenue, Rockville 20850
EV charging Tesla Supercharger 0.28 mi ~6 min
Pharmacy Walgreens 0.35 mi ~7 min
430 Hungerford Drive, Rockville 20850
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 |
|---|---|---|
| LC4857 | MD | Professional Counselor primary |
This provider holds licence LC4857 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 Professional covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YP2500X
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 | 1003212846 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 5, 2014 |
| Last updated | Nov 5, 2014 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LCPC |
| Practice address |
50 W MONTGOMERY AVE SUITE 320 Rockville, MD 20850 (301) 678-3385 |
| Other names |
Lia Bostian Other Name |
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 | 1 | 2 | 8 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 1 | 4 | 8 | 8 |
Sum = 54 · next multiple of 10 = 60 · 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.