William Gay, MD
William Gay, MD is a Pediatric Cardiology Physician in Roanoke, VA, registered under NPI 1164494159. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 4348 ELECTRIC RD, Roanoke, VA 24018. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 0101036383 | VA | Pediatric Cardiology Physician primary |
| 0101-036383 | VA | Pediatrics Physician |
| 0101-036383 | VA | Pediatric Cardiology Physician |
This provider holds licence 0101036383 issued in VA. 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 - Pediatric Medicine
- PAC ID
- 2769663590
- Enrollment ID
- I20110225000717
Medicare enrolment is recorded as approved under the provider type Practitioner - Pediatric Medicine. 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 Pediatric Cardiology covers
A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease. NUCC Health Care Provider Taxonomy, code 2080P0202X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2080P0202X | Pediatric Cardiology Physician Pediatric Cardiology | 0101036383 | VA | primary |
| 208000000X | Pediatrics Physician | 0101-036383 | VA | |
| 2080P0202X | Pediatric Cardiology Physician Pediatric Cardiology | 0101-036383 | VA |
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 | 1164494159 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 3, 2006 |
| Last updated | Jun 24, 2024 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
4348 ELECTRIC RD Roanoke, VA 24018 (540) 769-0976 Fax (540) 857-5387 |
| Mailing address |
213 S JEFFERSON ST STE 1006 Roanoke, VA 24011 |
| Other identifiers |
6725066
· Medicaid (VA) 6705677 · Medicaid (VA) 6736645 · Medicaid (VA) 6736785 · Medicaid (VA) 6739831 · Medicaid (VA) 6736793 · Medicaid (VA) 6712126 · Medicaid (VA) |
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 | 1 | 6 | 4 | 4 | 9 | 4 | 1 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 3 | 4 | 8 | 9 | 8 | 1 | 1 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.