Ronald R. Castonguay, MD
NPI 1154467074ActiveIndividual· Specialist· Fresno, CA
Specialist (MD) with Saint Agnes Medical Foundation, practicing in Fresno, California. Medicare paid $30,861 for services to 70 patients in 2024. Stryker Corporation reported $1,357 in payments in 2025, mostly travel and lodging. Lists Saint Agnes Medical Center as a hospital affiliation.
Overview
| NPI | 1154467074 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 29, 2007 |
| Last updated in NPPES | Jun 11, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | — | — |
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 | 70 |
|---|---|
| Services billed | 1,305 across 29 procedure codes |
| Paid by Medicare | $30,861 |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Orthopedic Surgery |
Medical group
- Saint Agnes Medical FoundationFresno, CA · 161 clinicians
Hospital affiliation
- Saint Agnes Medical CenterFresno, CA
Industry payments (Open Payments)
- 2025$1,357 · 11 payments from 1 company
- 2024$1,556 · 15 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $1,357 | 11 |
What the 2025 payments were for
- Travel and Lodging$741.01 · 3 payments
- Food and Beverage$615.80 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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