Dana Simpson, MD
Dana Simpson, MD is a Clinical Genetics (M.D.) Physician in Portland, OR, registered under NPI 1255346771.
Getting there
The practice address on file is 501 N GRAHAM ST STE 330B, Portland, OR 97227. 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 |
|---|---|---|
| MD23675 | OR | Clinical Genetics (M.D.) Physician primary |
This provider holds licence MD23675 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 - Medical Genetics And Genomics
- PAC ID
- 4284704461
Medicare enrolment is recorded as approved under the provider type Practitioner - Medical Genetics And Genomics. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Clinical Genetics (M.D.) covers
A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders. NUCC Health Care Provider Taxonomy, code 207SG0201X
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 | 1255346771 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 31, 2006 |
| Last updated | Feb 14, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
501 N GRAHAM ST STE 330B Portland, OR 97227 (503) 944-5970 |
| Mailing address |
PO BOX 4399 Portland, OR 97208 |
| Other identifiers |
286496
(OR) |
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 | 2 | 5 | 5 | 3 | 4 | 6 | 7 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 1 | 5 | 6 | 4 | 3 | 7 | 5 |
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.