William Hiatt, MD
William Hiatt, MD is a provider specialising in Student in an Organized Health Care Education/Training Program in Washington, DC, registered under NPI 1003610627. 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 Washington, based on OpenStreetMap data collected Sep 26, 2026. Parking is available about 0.40 mi away at Tishman Speyer. There is EV charging 0.49 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 189 ft away, served by New Hampshire Ave NW at 24th St NW. A pharmacy sits 0.46 mi from the entrance (Tschiffely Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 833 ft away.
Getting here and what is nearby
Transit New Hampshire Ave NW at 24th St NW 118 ft ~1 min
Restaurant Subway 127 ft ~1 min
900 23rd Street Northwest, Washington 20037
Mo-Fr 06:30-23:00, Sa-Su 07:30-23:00
Coffee Starbucks 138 ft ~1 min
Transit 188 ft ~1 min
Transit New Hampshire Ave NW at 24th St NW 189 ft ~1 min
Coffee Devon & Blakely 210 ft ~1 min
2200 Pennsylvania Avenue Northwest, Washington 20037-1709
Restaurant Circa at Foggy Bottom 255 ft ~1 min
Restaurant Sweetgreen 295 ft ~2 min
Grocery Whole Foods Market 442 ft ~2 min
2201 I Street Northwest, Washington 20037
Mo-Su 07:00-22:00
Convenience Marvelous Market 678 ft ~3 min
2424 Pennsylvania Avenue Northwest
Hotel Residence Inn 728 ft ~3 min
801 New Hampshire Avenue Northwest, Washington 20037-2304
Hotel Hotel AKA Washington Circle 760 ft ~3 min
Hotel Arc Hotel Washington DC 763 ft ~3 min
824 New Hampshire Avenue Northwest, Washington 20037
Coffee Tatte Bakery & Cafe 833 ft ~4 min
2129 I Street Northwest, Washington 20037
Mo-Sa 07:00-20:00; Su 08:00-19:00
Pharmacy CVS Pharmacy 0.24 mi ~5 min
Pharmacy CVS Pharmacy 0.24 mi ~5 min
Grocery Trader Joe's 0.24 mi ~5 min
1101 25th Street Northwest, Washington 20037
08:00-22:00
Convenience Best Vending II 0.25 mi ~5 min
730 21st Street Northwest
Convenience Washingtonian 0.28 mi ~6 min
2643 Virginia Avenue Northwest, Washington
Gas station Exxon 0.28 mi ~6 min
Gas station Sunoco 0.29 mi ~6 min
Gas station Valero 0.33 mi ~7 min
2708 Virginia Avenue Northwest, Washington 20037
Parking Presidential Plaza 0.37 mi ~8 min
Mo-Fr 07:00-21:00
Parking Park America 0.37 mi ~8 min
Grocery Streets Market 0.38 mi ~8 min
Parking Tishman Speyer 0.40 mi ~8 min
Mo-Fr 07:00-22:00
Pharmacy Tschiffely Pharmacy 0.46 mi ~10 min
Mo-Fr 08:00-18:00
EV charging ChargePoint 0.49 mi ~10 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 | 1003610627 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 2, 2025 |
| Last updated | Apr 17, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
900 23RD ST NW Washington, DC 20037 (202) 741-3000 |
| Mailing address |
2150 PENNSYLVANIA AVE NW Washington, DC 20037 |
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 | 6 | 1 | 0 | 6 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 1 | 0 | 6 | 4 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.