Joseph Quan, MD
NPI 1174505077ActiveIndividual· Internal Medicine, Cardiovascular Disease· Riverside, CA
Internal Medicine, Cardiovascular Disease (MD) in Riverside, California, trained at University of Vermont College of Medicine (class of 1977). Their prescriptions cost Medicare Part D more than their services did: $622,363 for 2,076 claims, against $116,645 paid for services in 2024. Medtronic, Inc. was the largest of 6 companies reporting payments in 2025, $1,181 in all, mostly food and beverage.
Overview
| NPI | 1174505077 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 16, 2005 |
| Last updated in NPPES | Apr 14, 2025 |
| Certified by provider | Apr 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | G46211 | CA |
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 - Cardiovascular Disease (Cardiology) (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 560 |
|---|---|
| Services billed | 1,847 across 48 procedure codes |
| Paid by Medicare | $116,645 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,076 · 5,162 30-day fills |
|---|---|
| Patients | 394 |
| Total drug cost | $622,363 |
| Generic share | 70% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 1977 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Riverside Medical Clinic IncRiverside, CA · 173 clinicians
Hospital affiliation
- Riverside Community HospitalRiverside, CA
Industry payments (Open Payments)
- 2025$1,181 · 14 payments from 6 companies
- 2024$880.77 · 19 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $754.82 | 8 |
| Boston Scientific Corporation | $194.72 | 2 |
| Edwards Lifesciences Corporation | $178.14 | 1 |
| Stryker Corporation | $23.93 | 1 |
| Cardiva Medical, Inc. | $20.66 | 1 |
What the 2025 payments were for
- Food and Beverage$635.75 · 12 payments
- Travel and Lodging$545.50 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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