Christopher Warwick Wulff, MD
NPI 1760418172ActiveIndividual· Internal Medicine, Cardiovascular Disease· Walnut Creek, CA
Internal Medicine, Cardiovascular Disease (MD) in Walnut Creek, California, trained at Tulane University School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $1,277,117 for 5,285 claims, against $403,126 paid for services in 2024. Zoll Services LLC (A/K/A Zoll Lifecor Corp) was the largest of 13 companies reporting payments in 2025, $555.21 in all, mostly food and beverage.
Overview
| NPI | 1760418172 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 25, 2006 |
| Last updated in NPPES | Nov 11, 2022 |
| Certified by provider | Nov 11, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | G53168 | CA |
| Internal Medicine, Interventional Cardiology | 207RI0011X | G53168 | 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 - Interventional Cardiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,208 |
|---|---|
| Services billed | 8,158 across 61 procedure codes |
| Paid by Medicare | $403,126 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,285 · 13,724 30-day fills |
|---|---|
| Patients | 797 |
| Total drug cost | $1,277,117 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Tulane University School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Interventional Cardiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- John Muir Physician NetworkPleasant Hill, CA · 494 clinicians
Industry payments (Open Payments)
- 2025$555.21 · 24 payments from 13 companies
- 2024$1,297 · 61 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $151.33 | 5 |
| Novartis Pharmaceuticals Corporation | $105.51 | 5 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $58.57 | 3 |
| Boston Scientific Corporation | $55.23 | 2 |
| Bridgebio Pharma, Inc. | $23.57 | 1 |
What the 2025 payments were for
- Food and Beverage$555.21 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 31 cardiologists in Walnut Creek · All cardiologists in California