Margaret Halpin, CPM, LDM
Margaret Halpin, CPM, LDM is a provider specialising in Lay Midwife in Portland, OR, registered under NPI 1285186239.
Getting there
The practice address on file is 3025 NE OREGON ST, Portland, OR 97232. 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 |
|---|---|---|
| DEM-LD-10179887 | OR | Lay Midwife primary |
This provider holds licence DEM-LD-10179887 issued in OR. 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 Midwife, Lay covers
A person qualified by experience and limited specialized training to provide obstetric and neo-natal care in the management of women having normal pregnancy, labor and childbirth. The lay midwife is licensed in some states. NUCC Health Care Provider Taxonomy, code 175M00000X
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 | 1285186239 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 25, 2016 |
| Last updated | Oct 25, 2016 |
| Status | Active |
| Sole proprietor | No |
| Credential | CPM, LDM |
| Practice address |
3025 NE OREGON ST Portland, OR 97232 (360) 606-0931 |
| Other identifiers |
DEM-LD-10179887
· Other (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 | 8 | 5 | 1 | 8 | 6 | 2 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 7 | 5 | 2 | 8 | 3 | 2 | 6 |
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.