Mary Fiona Carroll, M.D.
NPI 1821004599ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Bend, OR
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Bend Memorial Clinic PC, practicing in Bend, Oregon. Their prescriptions cost Medicare Part D more than their services did: $1,568,527 for 4,456 claims, against $225,033 paid for services in 2024. Amgen Inc. was the largest of 5 companies reporting payments in 2025, $124.73 in all, mostly food and beverage. Lists Harney District Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1821004599 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 1, 2006 |
| Last updated in NPPES | Jan 29, 2021 |
| Certified by provider | Jan 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | MD25593 | OR |
| Internal Medicine | 207R00000X | MD25593 | OR |
| Specialist | 174400000X | MD25593 | 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 - Endocrinology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,099 |
|---|---|
| Services billed | 5,889 across 50 procedure codes |
| Paid by Medicare | $225,033 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,456 · 10,943 30-day fills |
|---|---|
| Patients | 803 |
| Total drug cost | $1,568,527 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Bend Memorial Clinic PCBend, OR · 221 clinicians
Hospital affiliations
- Harney District HospitalBurns, OR
- Peace Harbor Medical CenterFlorence, OR
- Sky Lakes Medical CenterKlamath Falls, OR
- St Charles Medical Center - BendBend, OR
- St Charles Medical Center PrinevillePrineville, OR
Industry payments (Open Payments)
- 2025$124.73 · 7 payments from 5 companies
- 2024$288.08 · 11 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $46.14 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $27.27 | 1 |
| Tandem Diabetes Care, Inc. | $18.65 | 1 |
| Medtronic, Inc. | $16.99 | 1 |
| Novo Nordisk Inc | $15.68 | 1 |
What the 2025 payments were for
- Food and Beverage$124.73 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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