Bret A. Witter, M.D.
NPI 1396783387ActiveIndividual· Internal Medicine, Cardiovascular Disease· Los Alamitos, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Los Alamitos, California, trained at Baylor College of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $1,866,255 for 5,889 claims, against $324,880 paid for services in 2024. Amgen Inc. was the largest of 7 companies reporting payments in 2025, $191.22 in all, mostly food and beverage.
Overview
| NPI | 1396783387 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 3, 2006 |
| Last updated in NPPES | Oct 11, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A45250 | 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 | 1,452 |
|---|---|
| Services billed | 7,242 across 68 procedure codes |
| Paid by Medicare | $324,880 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,889 · 14,745 30-day fills |
|---|---|
| Patients | 795 |
| Total drug cost | $1,866,255 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1987 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Los Alamitos Internal Medical Group IncLos Alamitos, CA · 7 clinicians
Hospital affiliations
- Memorialcare Long Beach Medical CenterLong Beach, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$191.22 · 8 payments from 7 companies
- 2024$212.12 · 8 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $49.70 | 2 |
| Scpharmaceuticals Inc. | $26.76 | 1 |
| Pfizer Inc. | $26.70 | 1 |
| Abiomed | $24.71 | 1 |
| Altathera Pharmaceuticals LLC | $24.24 | 1 |
What the 2025 payments were for
- Food and Beverage$191.22 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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