Christopher Byerrum Seaman, M.D.
NPI 1306030242ActiveIndividual· Internal Medicine, Cardiovascular Disease· Riverside, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Riverside, California, trained at New York Medical College (class of 2006). Their prescriptions cost Medicare Part D more than their services did: $563,980 for 3,319 claims, against $81,344 paid for services in 2024. Medtronic, Inc. was the largest of 10 companies reporting payments in 2025, $519.18 in all, mostly food and beverage.
Overview
| NPI | 1306030242 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Sep 4, 2007 |
| Last updated in NPPES | Dec 6, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A101377 | CA |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | MD448744 | PA |
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 - Interventional Cardiology (CA); Practitioner - Cardiovascular Disease (Cardiology) (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 384 |
|---|---|
| Services billed | 1,022 across 30 procedure codes |
| Paid by Medicare | $81,344 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,319 · 5,833 30-day fills |
|---|---|
| Patients | 499 |
| Total drug cost | $563,980 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 2006 |
| Medicare specialty | Interventional Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- Cardiology Specialists Medical Group IncTemecula, CA · 12 clinicians
Hospital affiliations
- Corona Regional Medical CenterCorona, CA
- Riverside Community HospitalRiverside, CA
- St Bernardine Medical CenterSan Bernardino, CA
Industry payments (Open Payments)
- 2025$519.18 · 23 payments from 10 companies
- 2024$655.90 · 33 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $80.77 | 2 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $76.15 | 3 |
| Merck Sharp & Dohme LLC | $68.54 | 4 |
| Scpharmaceuticals Inc. | $63.89 | 3 |
| Abbott Laboratories | $61.28 | 3 |
What the 2025 payments were for
- Food and Beverage$519.18 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other cardiologists in Riverside
- 1073680898
- 1073896544
- 1124331012
- 1164548541
- 1174505077
- 1255561726
- 1275796963
- 1497137921
- 1518970755
- 1548479074
- 1871790717
- 1972651792
All 28 cardiologists in Riverside · All cardiologists in California