Mark Thomas Day, DO
NPI 1225492796ActiveIndividual· Internal Medicine, Cardiovascular Disease· Lebanon, OR
Internal Medicine, Cardiovascular Disease (DO) in Lebanon, Oregon, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $551,707 for 1,338 claims, against $49,079 paid for services in 2024. Alnylam Pharmaceuticals Inc. was the largest of 9 companies reporting payments in 2025, $417.79 in all, mostly food and beverage.
Overview
| NPI | 1225492796 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 11, 2016 |
| Last updated in NPPES | Feb 28, 2023 |
| Certified by provider | Feb 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | DO197880 | OR |
| Internal Medicine | 207R00000X | 182616 | OR |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (OR); Practitioner - Cardiovascular Disease (Cardiology) (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 520 |
|---|---|
| Services billed | 1,050 across 41 procedure codes |
| Paid by Medicare | $49,079 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,338 · 2,751 30-day fills |
|---|---|
| Patients | 285 |
| Total drug cost | $551,707 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Des Moines University of Osteopathic Medicine and Health Sciences |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Legacy Clinics LLCPortland, OR · 713 clinicians
- Legacy Salmon Creek HospitalPortland, OR · 301 clinicians
- Legacy Emanuel Hospital and Health CenterPortland, OR · 238 clinicians
- Legacy Good Samaritan Hospital and Medical CenterPortland, OR · 191 clinicians
- Legacy Meridian Park HospitalTualatin, OR · 115 clinicians
- Legacy Mount Hood Medical CenterGresham, OR · 59 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
- Legacy Salmon Creek Medical CenterVancouver, WA
Industry payments (Open Payments)
- 2025$417.79 · 13 payments from 9 companies
- 2024$326.11 · 15 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alnylam Pharmaceuticals Inc. | $118.80 | 1 |
| Astrazeneca Pharmaceuticals LP | $66.05 | 3 |
| Novartis Pharmaceuticals Corporation | $51.87 | 2 |
| Heartflow, Inc. | $51.03 | 2 |
| Shockwave Medical, Inc | $35.93 | 1 |
What the 2025 payments were for
- Food and Beverage$417.79 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiologists in Lebanon
- 1891059135