William Edwards
William Edwards is a Pain Medicine (Anesthesiology) Physician in Seattle, WA, registered under NPI 1720145931. 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 HARBORVIEW MEDICAL CENTER 325 9TH AVE, Seattle, WA 98104. 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 |
|---|---|---|
| MD00028110 | WA | Pain Medicine (Anesthesiology) Physician primary |
| MD00028110 | WA | Anesthesiology Physician |
This provider holds licence MD00028110 issued in WA. 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 Pain Medicine covers
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists. NUCC Health Care Provider Taxonomy, code 207LP2900X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207LP2900X | Pain Medicine (Anesthesiology) Physician Pain Medicine | MD00028110 | WA | primary |
| 207L00000X | Anesthesiology Physician | MD00028110 | WA |
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 | 1720145931 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 3, 2007 |
| Last updated | Mar 7, 2012 |
| Status | Active |
| Sole proprietor | No |
| Practice address |
HARBORVIEW MEDICAL CENTER 325 9TH AVE Seattle, WA 98104 (206) 341-5628 |
| Mailing address |
PO BOX 50095 Seattle, WA 98145 |
| Other identifiers |
9064
· Other 1720145931 · Medicaid (WA) 0231068 · Other (WA) |
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 | 7 | 2 | 0 | 1 | 4 | 5 | 9 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 4 | 0 | 2 | 4 | 1 | 9 | 6 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.