Christopher James Berg, M.D.
NPI 1598296147ActiveIndividual· Internal Medicine, Cardiovascular Disease· Fountain Valley, CA
Internal Medicine, Cardiovascular Disease (M.D.) in Fountain Valley, California, trained at University of California, Geffen School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $370,579 for 1,708 claims, against $139,492 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 18 companies reporting payments in 2025, $963.76 in all, mostly food and beverage.
Overview
| NPI | 1598296147 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 24, 2017 |
| Last updated in NPPES | Jul 27, 2023 |
| Certified by provider | Jul 27, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | A160087 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 565 |
|---|---|
| Services billed | 1,688 across 41 procedure codes |
| Paid by Medicare | $139,492 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,708 · 4,258 30-day fills |
|---|---|
| Patients | 338 |
| Total drug cost | $370,579 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Telehealth | Offers telehealth |
Medical group
- California Heart AssociatesFountain Valley, CA · 13 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Memorialcare Orange Coast Medical CenterFountain Valley, CA
Industry payments (Open Payments)
- 2025$963.76 · 44 payments from 18 companies
- 2024$1,005 · 53 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $177.54 | 9 |
| Alnylam Pharmaceuticals Inc. | $149.63 | 7 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $125.85 | 6 |
| Boston Scientific Corporation | $71.95 | 3 |
| Atricure, Inc. | $62.68 | 3 |
What the 2025 payments were for
- Food and Beverage$963.76 · 44 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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