ROMINA MERCADO DMD
ROMINA MERCADO DMD is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003258708, based in Alexandria, VA. It is classified under Dentist.
Getting there
Here is what surrounds this office in Alexandria, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.56 mi away. There is EV charging 0.46 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 530 ft away, served by Duke St at N Pickett St. A pharmacy sits 0.21 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.41 mi away.
Getting here and what is nearby
Parking 66 ft ~1 min
Restaurant Shooter McGee's 114 ft ~1 min
Restaurant McDonald's 164 ft ~1 min
Transit Duke St at N Paxton St 291 ft ~2 min
Transit Duke St at N Paxton St 495 ft ~2 min
Gas station Shell 457 ft ~2 min
Gas station Shell 486 ft ~2 min
5200 Duke Street, Alexandria 22304
Transit Duke St at N Pickett St 530 ft ~3 min
Restaurant Pizza Hut 548 ft ~3 min
Gas station Duke Street Liberty 873 ft ~4 min
5412 Duke Street, Alexandria 22304
Pharmacy CVS Pharmacy 0.21 mi ~5 min
Convenience Mediterranean Bakery and Cafe 0.40 mi ~9 min
352 South Pickett Street, Alexandria 22304
Mo-Sa 08:00-20:00; Su 08:00-18:00
Coffee Cameron Cafe 0.41 mi ~9 min
4911 Brenman Park Drive, Alexandria 22304
Mo-Fr 06:30-18:00; Sa 08:00-17:00; Su 08:00-17:00
EV charging ChargePoint 0.46 mi ~10 min
Parking 0.50 mi ~10 min
5651 Edsall Road, 22304
Parking 0.56 mi ~12 min
5815 Duke Street, 22304
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 |
|---|---|---|
| 0401412775 | VA | Dentist primary |
This provider holds licence 0401412775 issued in VA. 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 Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003258708 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jul 23, 2013 |
| Last updated | Jul 23, 2013 |
| Status | Active |
| Practice address |
5249 DUKE ST STE 101 Alexandria, VA 22304 (703) 751-4344 |
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 | 5 | 8 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 7 | 7 | 0 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.