John L. Lederer, M.D.
NPI 1740253327ActiveIndividual· Radiology, Radiation Oncology· Honolulu, HI
Radiology, Radiation Oncology (M.D.) in Honolulu, Hawaii, trained at Baylor College of Medicine (class of 1980). 288 Medicare patients in 2024, $500,861 paid; nearly all of their 246 Part D prescriptions were generic (98%). Elekta, Inc. was the largest of 10 companies reporting payments in 2025, $526.13 in all, mostly food and beverage.
Overview
| NPI | 1740253327 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 13, 2006 |
| Last updated in NPPES | Jun 17, 2025 |
| Certified by provider | Jun 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | 6681 | HI |
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 (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 288 |
|---|---|
| Services billed | 3,383 across 40 procedure codes |
| Paid by Medicare | $500,861 |
Part D prescriptions in 2024
| Prescriptions (claims) | 246 · 267 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $1,328 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 1980 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Cancer Center of Hawaii LLCHonolulu, HI · 6 clinicians
- Pacific Radiation Oncology LLCHonolulu, HI · 6 clinicians
Hospital affiliation
- Pali Momi Medical CenterAiea, HI
Industry payments (Open Payments)
- 2025$526.13 · 15 payments from 10 companies
- 2024$286.13 · 12 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Elekta, Inc. | $137.44 | 1 |
| Janssen Scientific Affairs, LLC | $84.60 | 1 |
| Astrazeneca Pharmaceuticals LP | $69.38 | 3 |
| Teleflex LLC | $67.81 | 3 |
| Siemens Medical Solutions USA, Inc. | $44.49 | 2 |
What the 2025 payments were for
- Food and Beverage$526.13 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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