Fay Horng, M.D.
Fay Horng, M.D. is an Anesthesiology Physician in Washington, DC, registered under NPI 1003078395.
Getting there
Here is what surrounds this office in Washington, based on OpenStreetMap data collected Aug 31, 2026. Parking is available about 286 ft away. The nearest transit stop is 776 ft away, served by 1st St NW at Entrance to National Rehabilitation Center. If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
Transit Washington Hospital Center at Outpatient Clinic 178 ft ~1 min
Parking 205 ft ~1 min
Parking 238 ft ~1 min
Parking 286 ft ~2 min
Restaurant Panera Bread 367 ft ~2 min
106 Irving Street Northwest, Washington 20010
24/7
Transit Michigan Ave NW at Children's Medical Center 740 ft ~3 min
Transit 1st St NW at Entrance to National Rehabilitation Center 776 ft ~3 min
Convenience Aurora Market 0.27 mi ~6 min
500 Irving Street Northwest, 20010
Mo-Fr 08:00-21:00; Sa 09:00-17:00; Su 09:00-15:00
Convenience Lamont Market 0.32 mi ~7 min
450 Lamont Street Northwest, 20010
Convenience Spruill's Convenience Store 0.37 mi ~8 min
3213 6th Street Northwest
Restaurant Zippin Chickin n Fish 0.44 mi ~9 min
Restaurant Halal Wrist 0.44 mi ~9 min
3019 Georgia Avenue Northwest, Washington 20001-3807
Mo off; Tu-Th 11:00-24:00; Fr-Sa 11:00-04:00; Su 11:00-22:00
Coffee Harrar Coffee and Roastery 0.47 mi ~10 min
2904 Harvard Street Northwest, Washington 20001
Mo-Fr 07:00-14:00; Sa 07:00-15:00; Su 08:00-15:00
Coffee Heat da Spot 0.47 mi ~10 min
3213 Georgia Avenue Northwest, Washington 20010-2510
Mo-Fr 07:30-15:00; Sa-Su 08:30-15:00
Coffee Doubles 0.48 mi ~10 min
3118 Georgia Avenue Northwest, Washington 20010
08:00-17:00
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 |
|---|---|---|
| MD040795 | DC | Anesthesiology Physician primary |
This provider holds licence MD040795 issued in DC. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Anesthesiology
- PAC ID
- 3779731047
- Enrollment ID
- I20120911000282
Medicare enrolment is recorded as approved under the provider type Practitioner - Anesthesiology. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Anesthesiology covers
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery. NUCC Health Care Provider Taxonomy, code 207L00000X
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 | 1003078395 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 27, 2008 |
| Last updated | Nov 19, 2012 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
110 IRVING ST NW Washington, DC 20010 (202) 877-7504 |
| Mailing address |
1611 SPOTTSWORTH WAY Silver Spring, MD 20905 |
| Other names |
Fay Yao Former Legal Business 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 | 0 | 7 | 8 | 3 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 7 | 7 | 3 | 9 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.