Catherine Mamah, M.D.
NPI 1811062912ActiveIndividual· Psychiatry & Neurology, Neurology· Vancouver, WA
Psychiatry & Neurology, Neurology (M.D.) in Vancouver, Washington, trained at Univ of Rochester School of Dental Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $257,633 for 282 claims, against $4,992 paid for services in 2024. Argenx US, Inc. reported $20.57 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1811062912 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Nov 22, 2006 |
| Last updated in NPPES | Aug 19, 2025 |
| Certified by provider | Aug 19, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 836 | WI |
| Psychiatry & Neurology, Neurology | 2084N0400X | MD60577656 | WA |
| Psychiatry & Neurology, Neuromuscular Medicine | 2084N0008X | MD60577656 | WA |
| Psychiatry & Neurology, Neurology | 2084N0400X | 105347 | CA |
| Psychiatry & Neurology, Neurology | 2084N0400X | 60081 | MN |
| Psychiatry & Neurology, Neurology | 2084N0400X | EL31992 | NH |
| Psychiatry & Neurology, Clinical Neurophysiology | 2084N0600X | MD60577656 | WA |
| Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology | 2084N0402X | MD60577656 | WA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurology (MN); Practitioner - Neurology (NH); Practitioner - Neurology (OH); Practitioner - Neurology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 40 |
|---|---|
| Services billed | 84 across 4 procedure codes |
| Paid by Medicare | $4,992 |
Part D prescriptions in 2024
| Prescriptions (claims) | 282 · 326 30-day fills |
|---|---|
| Patients | 87 |
| Total drug cost | $257,633 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | Univ of Rochester School of Dental Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Neurology |
Medical groups
- Mary Hitchcock Memorial HospitalManchester, NH · 1,280 clinicians
- Kadlec Regional Medical CenterKennewick, WA · 414 clinicians
- Sanford Health of Northern MinnesotaBemidji, MN · 343 clinicians
Hospital affiliations
- Cheshire Medical CenterKeene, NH
- Kadlec Regional Medical CenterRichland, WA
- Mary Hitchcock Memorial HospitalLebanon, NH
- Prosser Memorial HospitalProsser, WA
- Sanford Bemidji Medical CenterBemidji, MN
Industry payments (Open Payments)
- 2025$20.57 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Argenx US, Inc. | $20.57 | 1 |
What the 2025 payments were for
- Food and Beverage$20.57 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other neurologists in Vancouver
- 1053721571
- 1124088406
- 1326381500
- 1508114232
- 1568723336
- 1831108455
- 1942316542
- 1952458812
- 1962834796
- 1184087520
- 1235157496
- 1235625922
All 35 neurologists in Vancouver · All neurologists in Washington