David J. Underwood, M.D
NPI 1023080686ActiveIndividual· Radiology, Diagnostic Radiology· Covina, CA
Radiology, Diagnostic Radiology (M.D) in Covina, California, trained at University of Southern California Keck School of Medicine (class of 1991). Medicare paid $41,778 for services to 794 patients in 2024. Stryker Corporation reported $40.60 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1023080686 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Feb 7, 2006 |
| Last updated in NPPES | Oct 21, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | G75458 | 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 - Diagnostic Radiology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 794 |
|---|---|
| Services billed | 1,593 across 147 procedure codes |
| Paid by Medicare | $41,778 |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Diagnostic Radiology |
| Secondary specialties | Interventional Radiology |
Medical group
- Arrowhead Radiology Medical Group IncColton, CA · 10 clinicians
Hospital affiliation
- Arrowhead Regional Medical CenterColton, CA
Industry payments (Open Payments)
- 2025$40.60 · 2 payments from 1 company
- 2024$172.88 · 8 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $40.60 | 2 |
What the 2025 payments were for
- Food and Beverage$40.60 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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