Dan Welch, MD
Dan Welch, MD is a Pain Medicine (Physical Medicine & Rehabilitation) Physician in Everett, WA, registered under NPI 1447360599.
Getting there
The practice address on file is 9617 7TH AVE SE, Everett, WA 98208. 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 |
|---|---|---|
| MD00017850 | WA | Pain Medicine (Physical Medicine &… primary |
This provider holds licence MD00017850 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
A physician who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic or cancer pain in both hospital and ambulatory settings. Patient care needs may also be coordinated with other specialists. NUCC Health Care Provider Taxonomy, code 2081P2900X
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 | 1447360599 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 30, 2006 |
| Last updated | Feb 20, 2008 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
9617 7TH AVE SE Everett, WA 98208 (425) 513-8509 Fax (425) 290-9774 |
| Mailing address |
15436 BEL RED RD STE 100 Redmond, WA 98052 |
| Other identifiers |
0064031
· Other (WA) 1021294 · Medicaid (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 | 4 | 4 | 7 | 3 | 6 | 0 | 5 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 8 | 7 | 6 | 6 | 0 | 5 | 9 |
Sum = 71 · next multiple of 10 = 80 · 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.