David W. Mantik, MD
NPI 1669421012ActiveIndividual· Radiology, Radiation Oncology· Redding, CA
Radiology, Radiation Oncology (MD) in Redding, California, licensed in CA and WV, with an NPI issued in May 2006. Enrolled in Medicare as practitioner - radiation oncology. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $37.26 in all, mostly food and beverage.
Overview
| NPI | 1669421012 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 10, 2006 |
| Last updated in NPPES | Jun 18, 2020 |
| Certified by provider | Jun 18, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | G34416 | CA |
| Radiology, Radiation Oncology | 2085R0001X | 25351 | WV |
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 - Radiation Oncology (NM) |
|---|
Industry payments (Open Payments)
- 2025$37.26 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $22.06 | 1 |
| Sumitomo Pharma America, Inc. | $15.20 | 1 |
What the 2025 payments were for
- Food and Beverage$37.26 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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