Dan Yan, D.C.
Dan Yan, D.C. is a provider specialising in Independent Medical Examiner Chiropractor in Portland, OR, registered under NPI 1366631657. 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 7505 S.E. POWELL BLVD, Portland, OR 97206. 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 |
|---|---|---|
| 273124 | OR | Independent Medical Examiner Chiropractor primary |
| 273124 | OR | Chiropractor |
This provider holds licence 273124 issued in OR. 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 - Chiropractic
- PAC ID
- 8820487176
- Enrollment ID
- I20250602003520
Medicare enrolment is recorded as approved under the provider type Practitioner - Chiropractic. 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 Independent Medical Examiner covers
A special evaluator not involved with the medical care of the individual examinee that impartially evaluates the care being provided by other practitioners to clarify clinical, disability, liability or other case issues. NUCC Health Care Provider Taxonomy, code 111NI0013X
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 | |
|---|---|---|---|---|
| 111NI0013X | Independent Medical Examiner Chiropractor Independent Medical Examiner | 273124 | OR | primary |
| 111N00000X | Chiropractor | 273124 | OR |
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 | 1366631657 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 23, 2007 |
| Last updated | Oct 23, 2007 |
| Status | Active |
| Sole proprietor | No |
| Credential | D.C. |
| Practice address |
7505 S.E. POWELL BLVD Portland, OR 97206 (503) 888-8883 |
| Mailing address |
7505 SE POWELL BLVD Portland, OR 97206 |
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 | 3 | 6 | 6 | 6 | 3 | 1 | 6 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 3 | 6 | 3 | 3 | 2 | 6 | 1 |
Sum = 53 · next multiple of 10 = 60 · 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.