David Berz, MD, PHD, MPH
NPI 1437375128ActiveIndividual· Internal Medicine, Hematology & Oncology· Los Angeles, CA
Internal Medicine, Hematology & Oncology (MD, PHD, MPH) with Valkyrie Pharmaceutics, practicing in Los Angeles, California. Their prescriptions cost Medicare Part D more than their services did: $2,451,594 for 495 claims, against $1,213,279 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 19 companies reporting payments in 2025, $1,243 in all, mostly food and beverage. Lists Cedars-Sinai Medical Center as a hospital affiliation.
Overview
| NPI | 1437375128 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD, MPH |
| Sole proprietor | Yes |
| NPI issued | Apr 18, 2007 |
| Last updated in NPPES | Feb 20, 2023 |
| Certified by provider | Feb 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A118786 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 232 |
|---|---|
| Services billed | 49,884 across 90 procedure codes |
| Paid by Medicare | $1,213,279 |
Part D prescriptions in 2024
| Prescriptions (claims) | 495 · 584 30-day fills |
|---|---|
| Patients | 96 |
| Total drug cost | $2,451,594 |
| Generic share | 61% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Valkyrie PharmaceuticsPanorama City, CA · 2 clinicians
Hospital affiliation
- Cedars-Sinai Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2025$1,243 · 50 payments from 19 companies
- 2024$10,874 · 105 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $257.58 | 13 |
| Astellas Pharma US Inc | $146.67 | 6 |
| Regeneron Pharmaceuticals, Inc. | $117.70 | 1 |
| Novartis Pharmaceuticals Corporation | $78.60 | 4 |
| Pfizer Inc. | $68.99 | 4 |
What the 2025 payments were for
- Food and Beverage$1,243 · 50 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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