Guy P. Guilfoy, MD
NPI 1154381341ActiveIndividual· Orthopaedic Surgery· Folsom, CA
Orthopaedic Surgery (MD) in Folsom, California, trained at Loma Linda University School of Medicine (class of 1982). 245 Medicare patients in 2024, $137,111 paid; nearly all of their 392 Part D prescriptions were generic (99%). Evolution Surgical, Inc reported $33.42 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1154381341 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 23, 2006 |
| Last updated in NPPES | Mar 28, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | G50096 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 245 |
|---|---|
| Services billed | 1,362 across 77 procedure codes |
| Paid by Medicare | $137,111 |
Part D prescriptions in 2024
| Prescriptions (claims) | 392 · 396 30-day fills |
|---|---|
| Patients | 142 |
| Total drug cost | $4,476 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Folsom Orthopaedic Surgery and Sports Injury Medical Clinic, Inc.Folsom, CA · 4 clinicians
Hospital affiliations
- Marshall Medical CenterPlacerville, CA
- Mercy Hospital of FolsomFolsom, CA
- Sutter Roseville Medical CenterRoseville, CA
Industry payments (Open Payments)
- 2025$33.42 · 2 payments from 1 company
- 2024$279.50 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Evolution Surgical, Inc | $33.42 | 2 |
What the 2025 payments were for
- Food and Beverage$33.42 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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