Brian Suen, PHARMD
Brian Suen, PHARMD is a Pharmacist in Gaithersburg, MD, registered under NPI 1003534066.
Getting there
Here is what surrounds this office in Gaithersburg, based on OpenStreetMap data collected Oct 4, 2026. Parking is available about 0.21 mi away. There is EV charging 0.29 mi from the office — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 0.25 mi away.
Getting here and what is nearby
Convenience Shell 192 ft ~1 min
600 Quince Orchard Road, Gaithersburg 20878
Gas station Shell 232 ft ~1 min
Restaurant McDonald's 282 ft ~2 min
666 Quince Orchard Road, Gaithersburg 20878
05:00-22:00
Restaurant Taco Bamba 338 ft ~2 min
670 Quince Orchard Road
Restaurant Miyaji Kebab & Rumali Rolls 366 ft ~2 min
674 Quince Orchard Road
Grocery ALDI 513 ft ~2 min
608 Quince Orchard Road, Gaithersburg 20878-1410
Mo-Su 08:00-21:00
Grocery Taste of Europe 543 ft ~3 min
630 Quince Orchard Road
Parking 600 ft ~3 min
Parking 0.20 mi ~4 min
Parking 0.21 mi ~5 min
Coffee Starbucks 0.25 mi ~5 min
EV charging Blink 0.27 mi ~6 min
EV charging 0.28 mi ~6 min
EV charging 0.29 mi ~6 min
Grocery Giant 0.30 mi ~7 min
Gas station Shell 0.31 mi ~7 min
501 Quince Orchard Road, Gaithersburg 20878
Hotel Motel 6 0.39 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 |
|---|---|---|
| 28540 | MD | Pharmacist primary |
This provider holds licence 28540 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 Pharmacist covers
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care. NUCC Health Care Provider Taxonomy, code 183500000X
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 | 1003534066 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 16, 2022 |
| Last updated | Aug 16, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | PHARMD |
| Practice address |
662 QUINCE ORCHARD RD Gaithersburg, MD 20878 (301) 990-6993 |
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 | 5 | 3 | 4 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 3 | 8 | 0 | 3 |
Sum = 44 · next multiple of 10 = 50 · 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.