James M. Dayton, MD
NPI 1679709711ActiveIndividual· Internal Medicine· Bend, OR
Internal Medicine (MD) in Bend, Oregon, trained at Oregon Health Sciences University School of Medicine (class of 2009). In 2024 Medicare paid $37,726 for 202 patients, and Part D covered 293 of their prescriptions, 86% of them generic.
Overview
| NPI | 1679709711 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 3, 2009 |
| Last updated in NPPES | Apr 23, 2020 |
| Certified by provider | Apr 23, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD158557 | OR |
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 - Hospitalist (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 202 |
|---|---|
| Services billed | 457 across 15 procedure codes |
| Paid by Medicare | $37,726 |
Part D prescriptions in 2024
| Prescriptions (claims) | 293 · 303 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $18,929 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- St Charles Health System IncRedmond, OR · 173 clinicians
Hospital affiliations
- St Charles MadrasMadras, OR
- St Charles Medical Center - BendBend, OR
- St Charles Medical Center PrinevillePrineville, OR
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 111 internal medicine physicians in Bend · All internal medicine physicians in Oregon