Gregory John Schaner, MD
NPI 1871577734ActiveIndividual· Radiology, Diagnostic Radiology· Oakland, CA
Radiology, Diagnostic Radiology (MD) in Oakland, California, trained at Loma Linda University School of Medicine (class of 1983). Medicare paid $284,832 for services to 5,171 patients in 2024. Medtronic, Inc. reported $29.68 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1871577734 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 5, 2005 |
| Last updated in NPPES | Feb 23, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Diagnostic Radiology Primary | 2085R0202X | G53787 | 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 | 5,171 |
|---|---|
| Services billed | 9,717 across 232 procedure codes |
| Paid by Medicare | $284,832 |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Diagnostic Radiology |
Medical group
- Jason L Hwang MD IncMacon, GA · 53 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Mark Twain Medical CenterSan Andreas, CA
Industry payments (Open Payments)
- 2025$29.68 · 1 payment from 1 company
- 2024$72.26 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $29.68 | 1 |
What the 2025 payments were for
- Food and Beverage$29.68 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 83 diagnostic radiologists in Oakland · All diagnostic radiologists in California