Physician

John L. Lederer, M.D.

According to 2025 Medicare claims, John Lederer, M.D. (NPI: 1740253327) practices radiation oncology in the Urban Honolulu, HI market, with the plurality of this provider's patient population coming from Honolulu, HI. This provider's primary affiliated billing organization is CANCER CENTER OF HAWAII, LLC (NPI: 1285746636; TIN: 201497111) and primary practice location at 96817-1605.

Lederer's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 288 traditional Medicare patients, billed 3,383 HCPCS/CPT codes, and received $500,861 in Medicare payments. The top billing code was G6015 (Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session). Part D data shows 246 prescription claims across 114 beneficiaries totaling $1,328 in drug costs, led by Ciprofloxacin Hcl (Ciprofloxacin Hcl). Open Payments data shows 12 records totaling $286. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has declined steadily, from $646,537 to $500,861. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $3,943 and ending at $1,328. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.

Part B Carrier Billing Trend

Medicare payment trend, with N of patients and claim lines in the table.

Year	Patients	Clm Lines	Payment
2015	479	5,183	$646,537
2016	428	5,110	$633,148
2017	395	5,305	$675,812
2018	446	6,489	$856,337
2019	410	5,036	$658,457
2020	317	3,712	$531,536
2021	336	3,653	$532,628
2022	293	4,052	$563,610
2023	290	3,517	$503,810
2024	288	3,383	$500,861

Part D Events Trend

Drug cost trend, with N of patients and prescription claims in the table.

Year	Patients	Claims	Drug Cost
2015	93	186	$3,943
2016	122	220	$3,174
2017	109	206	$4,865
2018	123	269	$2,452
2019	126	306	$3,365
2020	100	234	$96,226
2021	85	164	$75,457
2022	119	274	$1,632
2023	133	299	$1,858
2024	114	246	$1,328

DME Billing Trend

Medicare payment trend, with N of patients and DME claim records in the table.

No connected DME records

* / # = suppressed by CMS; 0 = reported zero; N/R = not reported or blank.

Top 5 Part B carrier billing codes in 2024

By total payments.

Code	Description	Patients	Clm Lines	Total Payment
G6015	Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session	107	325	$312
99205	New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	80	80	$172
77263	Complex radiation therapy planning	83	84	$120
77014	Ct guidance for insertion of radiation therapy fields	80	489	$52
77300	Calculation of radiation therapy dose	79	454	$27

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Ciprofloxacin Hcl	Ciprofloxacin Hcl	98	470	$436
Tamsulosin Hcl	Tamsulosin Hcl	21	1,045	$227
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	48	200	$116
Cephalexin	Cephalexin	21	42	$45
Lorazepam	Lorazepam	21	30	$11

Top 5 DME services in 2024

No connected or detailed DME service-level records for 2024.

Open Payments Summary in 2024

Category	Definition	Records	Total Reported Amount	Top Related Entity
General Payments	Reported payment or transfer-of-value amount.	12	$286	Merck Sharp & Dohme LLC
Research Payments	Reported research-related payment or transfer-of-value amount.	0	$0	N/R
Ownership / Investment Interests	Reported value of ownership or investment interests.	0	$0	N/R

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FAQ

What Medicare data is available for John L. Lederer, M.D.?

Tedicare shows public-source Medicare data for John L. Lederer, M.D. (NPI 1740253327), including provider identity, specialty, market context, Medicare Part B activity, Part D prescribing, DME records, Open Payments where available, billing organization details, and ACO affiliation signals where available. Profile data covers 2015-2024, with current attribution based on 2025 claims where available.

Does John L. Lederer, M.D. have ACO affiliation data?

No ACO affiliation record is shown in the available Tedicare data for this profile.

What billing organization is linked to John L. Lederer, M.D.?

John L. Lederer, M.D. is linked to CANCER CENTER OF HAWAII, LLC (billing NPI 1285746636) in the available physician profile data.

Does John L. Lederer, M.D. have Open Payments data?

John L. Lederer, M.D. has 12 connected Open Payments records in the available 2024 summary data.

Can I download physician-level Medicare data from Tedicare?

Yes. Tedicare provides sample physician export data and paid custom physician data exports for research, planning, outreach, and market analysis. Exports can include physician profile fields, market and specialty context, billing organization details, ACO affiliation signals where available, and Medicare utilization data.