Claire Kassakian, MD
NPI 1316172984ActiveIndividual· Internal Medicine, Nephrology· Portland, OR
Internal Medicine, Nephrology (MD) in Portland, Oregon, trained at Warren Alpert Medical School of Brown University (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $198,009 for 1,760 claims, against $108,486 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $21.79 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1316172984 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 26, 2009 |
| Last updated in NPPES | Sep 25, 2025 |
| Certified by provider | Sep 25, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD167522 | OR |
| Internal Medicine, Nephrology | 207RN0300X | MD-25187 | HI |
| Internal Medicine, Nephrology | 207RN0300X | MD60683431 | 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 - Nephrology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 312 |
|---|---|
| Services billed | 2,132 across 29 procedure codes |
| Paid by Medicare | $108,486 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,760 · 3,355 30-day fills |
|---|---|
| Patients | 331 |
| Total drug cost | $198,009 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Northwest Renal Clinic IncPortland, OR · 40 clinicians
Hospital affiliations
- Adventist Health PortlandPortland, OR
- Adventist Health TillamookTillamook, OR
- Legacy Mount Hood Medical CenterGresham, OR
- Ohsu Hospital and ClinicsPortland, OR
- Providence Portland Medical CenterPortland, OR
Other facilities
- Fmc Clackamas Kidney CenterDialysis facility · Clackamas, OR
- Fmc Dialysis Mt HoodDialysis facility · Gresham, OR
- Fmc Maywood ParkDialysis facility · Portland, OR
- Pnrs Hollywood DialysisDialysis facility · Portland, OR
Industry payments (Open Payments)
- 2025$21.79 · 1 payment from 1 company
- 2024$36.37 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $21.79 | 1 |
What the 2025 payments were for
- Food and Beverage$21.79 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 83 nephrologists in Portland · All nephrologists in Oregon