Catherine Tremblay, MD
NPI 1235715277ActiveIndividual· Family Medicine· Geneva, IL
Family Medicine (MD) in Geneva, Illinois, trained at University of Minnesota Medical School (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $15,926 for 226 claims, against $4,767 paid for services in 2024.
Overview
| NPI | 1235715277 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2021 |
| Last updated in NPPES | Jun 14, 2021 |
| Certified by provider | Jun 14, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 125078407 | IL |
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 - Family Practice (MN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 68 across 17 procedure codes |
| Paid by Medicare | $4,767 |
Part D prescriptions in 2024
| Prescriptions (claims) | 226 · 513 30-day fills |
|---|---|
| Patients | 60 |
| Total drug cost | $15,926 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Minnesota Medical School |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Group Health IncBloomington, MN · 1,638 clinicians
Hospital affiliation
- Park Nicollet Methodist HospitalSaint Louis Park, MN
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 50 family medicine physicians in Geneva · All family medicine physicians in Illinois