Doctor profile · Federal record
Dr. John Lederer, M.D.
Radiation Oncology Physician (CMS: Radiation Oncology) · Honolulu, HI
- NPI 1740253327
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 46 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2226 Liliha St Ste B2
Honolulu, HI 968171605
(808) 547-6881 - Mailing address
-
2226 Liliha St Ste 300
Honolulu, HI 968171605
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- June 17, 2025
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State license (1)
- Hawaii #6681
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1740253327. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,411
Distinct HCPCS
10
Medicare allowed
$593,764
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77300 |
Calculation of radiation therapy dose | 484 | 80 | $35 | |
77014 |
Ct guidance for insertion of radiation therapy fields | 437 | 90 | $66 | |
77427 |
Radiation treatment management, 5 treatment sessions | 377 | 84 | $190 | |
G6015 |
Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session | 281 | 100 | $391 | |
77334 |
Design and construction of complex radiation treatment device | 246 | 54 | $66 | |
G6002 |
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 242 | 74 | $38 | |
77338 |
Design and construction of radiation treatment device for high precision radiation therapy | 155 | 57 | $244 | |
77301 |
High precision radiation therapy planning | 113 | 55 | $976 | |
G6012 |
Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev | 111 | 58 | $253 | |
A4648 |
Tissue marker, implantable, any type, each | 101 | 37 | $113 |
In context: peer comparison
Among 8 peers in Honolulu Radiation Oncology Physician, average services per provider: 119. This provider delivers 29× the peer median.Open Payments
Industry payments received
All-time total
$286
Transactions
12
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 3 | $76.73 | |
| Novartis Pharmaceuticals Corporation | 2 | $59.78 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $54.46 | |
| Pfizer INC. | 1 | $37.99 | |
| Servier Pharmaceuticals LLC | 1 | $23.25 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $18.27 | |
| Bayer Healthcare Pharmaceuticals INC. | 1 | $15.65 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
268
Patients
237
Total drug cost
$1,152
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ciprofloxacin Hcl | Generic | 121 | 106 | $536 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 69 | 67 | $223 |
| Tamsulosin Hcl | Generic | 30 | 19 | $276 |
| Lorazepam | Generic | 26 | 24 | $43 |
| Cephalexin | Generic | 22 | 21 | $73 |
Frequently asked questions
What is Dr. John Lederer's medical specialty?
Dr. John Lederer practices Radiation Oncology Physician in Honolulu, HI.
Where does Dr. John Lederer practice?
Dr. John Lederer practices at 2226 Liliha St Ste B2, Honolulu, HI 968171605. Office phone: 8085476881.
What is Dr. John Lederer's NPI?
Dr. John Lederer's National Provider Identifier (NPI) is 1740253327, issued by NPPES.
Does Dr. John Lederer accept Medicare assignment?
Yes. Dr. John Lederer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Lederer commonly perform?
Top Medicare-reported procedures in 2023: Calculation of radiation therapy dose (HCPCS 77300); Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.