Katherine D. Dempster, MD
NPI 1477755262ActiveIndividual· Internal Medicine· Portland, OR
Internal Medicine (MD) with Legacy Emanuel Hospital and Health Center and 1 other group, practicing in Portland, Oregon. Their prescriptions cost Medicare Part D more than their services did: $393,568 for 4,112 claims, against $17,201 paid for services in 2024. Sk Life Science, Inc. was the largest of 2 companies reporting payments in 2025, $144.00 in all, mostly food and beverage. Lists Legacy Emanuel Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1477755262 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 4, 2007 |
| Last updated in NPPES | Feb 26, 2026 |
| Certified by provider | Feb 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD28134 | OR |
| Internal Medicine | 207R00000X | MD.200886 | LA |
| Internal Medicine | 207R00000X | 79562 | AZ |
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 - Internal Medicine (AZ); Practitioner - Internal Medicine (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 149 |
|---|---|
| Services billed | 527 across 18 procedure codes |
| Paid by Medicare | $17,201 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,112 · 8,615 30-day fills |
|---|---|
| Patients | 300 |
| Total drug cost | $393,568 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Legacy Emanuel Hospital and Health CenterPortland, OR · 238 clinicians
- Northwest Allied Physicians LLCSahuarita, AZ · 120 clinicians
Hospital affiliations
- Legacy Emanuel Medical CenterPortland, OR
- Legacy Good Samaritan Medical CenterPortland, OR
- Legacy Meridian Park Medical CenterTualatin, OR
- Legacy Mount Hood Medical CenterGresham, OR
- Ohsu Hospital and ClinicsPortland, OR
Industry payments (Open Payments)
- 2025$144.00 · 3 payments from 2 companies
- 2024$22.46 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sk Life Science, Inc. | $104.97 | 1 |
| Otsuka America Pharmaceutical, Inc. | $39.03 | 2 |
What the 2025 payments were for
- Food and Beverage$144.00 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 958 internal medicine physicians in Portland · All internal medicine physicians in Oregon