Jon Warren Loo, MD
NPI 1871755017ActiveIndividual· Radiology, Diagnostic Radiology· Laguna Hills, CA
Radiology, Diagnostic Radiology (MD) in Laguna Hills, California, trained at Medical College of Wisconsin (class of 2008). Medicare paid $38,163 for services to 818 patients in 2024. Terumo Medical Corporation was the largest of 4 companies reporting payments in 2025, $423.61 in all, mostly food and beverage.
Overview
| NPI | 1871755017 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jun 30, 2008 |
| Last updated in NPPES | Apr 4, 2025 |
| Certified by provider | Apr 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | A123551 | CA |
| Radiology, Vascular & Interventional Radiology | 2085R0204X | PG167394 | 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 - Diagnostic Radiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 818 |
|---|---|
| Services billed | 1,259 across 134 procedure codes |
| Paid by Medicare | $38,163 |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Diagnostic Radiology |
Medical group
- Memorialcare Medical FoundationLong Beach, CA · 566 clinicians
Hospital affiliations
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
- Memorialcare Saddleback Medical CenterLaguna Hills, CA
Industry payments (Open Payments)
- 2025$423.61 · 6 payments from 4 companies
- 2024$75.43 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Terumo Medical Corporation | $198.92 | 2 |
| Penumbra, Inc. | $124.92 | 1 |
| Stryker Corporation | $69.22 | 2 |
| Inari Medical, Inc. | $30.55 | 1 |
What the 2025 payments were for
- Food and Beverage$423.61 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 diagnostic radiologists in Laguna Hills · All diagnostic radiologists in California