Koren Kwag, MD
Koren Kwag, MD is a provider specialising in Student in an Organized Health Care Education/Training Program in Brooklyn, NY, registered under NPI 1003495144.
Getting there
Here is what surrounds this office in Brooklyn, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.37 mi away at Garfield Garage. There is EV charging 0.22 mi from the office (plugNYC) — useful if you are driving in from out of town. The nearest transit stop is 646 ft away, served by 7th Avenue & 9th Street. A pharmacy sits 0.30 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 508 ft away.
Getting here and what is nearby
Pharmacy Greentree Pharmacy 378 ft ~2 min
Restaurant Purity Diner 377 ft ~2 min
Transit 7th Avenue & 6th Street 416 ft ~2 min
Transit 7th Avenue & 6th Street 428 ft ~2 min
Coffee Brew Memories 409 ft ~2 min
Mo-Fr 07:00-20:30; Sa,Su 08:00-20:30
Coffee La Bagel Delight 434 ft ~2 min
Restaurant Botte di Vino 401 ft ~2 min
Restaurant Happy Fresh Tortillas 432 ft ~2 min
Convenience Park Slope Deli & Grocery 463 ft ~2 min
294 7th Street, 11215
Convenience Park Slope Deli & Variety 467 ft ~2 min
Coffee Java Joe 508 ft ~2 min
414 8th Street, Brooklyn 11215
Mo-Fr 07:00-19:00; Sa-Su 09:00-18:00
Convenience Green Olives 548 ft ~3 min
309 7th Avenue, 11215
Transit 7th Avenue & 9th Street 646 ft ~3 min
Parking Car Park Systems 0.21 mi ~5 min
EV charging plugNYC 0.22 mi ~5 min
Pharmacy The Modern Chemist 0.22 mi ~5 min
189 7th Avenue, Brooklyn 11215
Mo-Fr 10:00-19:00; Sa 10:00-18:00
Grocery Food Train 0.23 mi ~5 min
Parking Ultra Car Park Systems 0.26 mi ~6 min
Pharmacy CVS Pharmacy 0.30 mi ~7 min
Grocery Union Market 0.31 mi ~7 min
402-404 7th Avenue, Brooklyn 11215
Mo-Su 07:30-21:00
Grocery K-Slope Market 0.34 mi ~7 min
Parking Garfield Garage 0.37 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
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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003495144 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 6, 2021 |
| Last updated | Apr 6, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
506 6TH ST Brooklyn, NY 11215 (718) 780-3000 |
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 | 4 | 9 | 5 | 1 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 9 | 1 | 1 | 8 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.