Physician

Leslie Klein, M.D.

According to 2025 Medicare claims, Leslie Klein, M.D. (NPI: 1619101771) practices hematology/oncology in the Phoenix-Mesa-Chandler, AZ market, with the plurality of this provider's patient population coming from Maricopa, AZ. This provider's primary affiliated billing organization is IRONWOOD PHYSICIANS, PC (NPI: 1740269299; TIN: 731636831) and primary practice location at 85260-6746. Klein is affiliated with the Banner Health Network (ACO ID: A3229), participating under the MSSP model.

Klein's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 803 traditional Medicare patients, billed 173,269 HCPCS/CPT codes, and received $2,555,124 in Medicare payments. The top billing code was 78815 (Nuclear medicine study from skull base to mid-thigh with ct scan). Part D data shows 1,376 prescription claims across 220 beneficiaries totaling $4,481,500 in drug costs, led by Revlimid (Lenalidomide). 2023 DME data shows 23 claims. Open Payments data shows 113 records totaling $2,271. 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 moved sharply higher in recent years, from $7,132 to $2,555,124. Similarly, Part D prescription costs have moved sharply higher in recent years, from $23,679 to $4,481,500. 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	33	154	$7,132
2016	249	23,349	$341,384
2017	378	66,680	$595,009
2018	299	81,261	$742,112
2019	310	121,657	$1,425,152
2020	335	130,888	$1,510,730
2021	440	129,372	$1,979,066
2022	644	157,178	$2,534,328
2023	776	154,355	$2,119,386
2024	803	173,269	$2,555,124

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	22	79	$23,679
2016	43	151	$10,108
2017	86	340	$118,548
2018	120	623	$236,127
2019	173	914	$715,373
2020	184	1,194	$1,394,500
2021	199	1,231	$1,214,830
2022	208	1,250	$1,403,186
2023	228	1,335	$2,697,079
2024	220	1,376	$4,481,500

DME Billing Trend

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

Year	Patients	Claims	Payment
2015	N/R	N/R	N/R
2016	N/R	N/R	N/R
2017	N/R	N/R	N/R
2018	N/R	N/R	N/R
2019	N/R	N/R	N/R
2020	N/R	N/R	N/R
2021	N/R	N/R	N/R
2022	N/R	N/R	N/R
2023	N/R	23	$2,279
2024	N/R	N/R	N/R

* / # = 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
78815	Nuclear medicine study from skull base to mid-thigh with ct scan	106	120	$1,150
A9552	Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries	135	150	$278
99213	Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more	324	641	$63
71260	Ct scan of chest with contrast	107	122	$48
Q9967	Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml	125	12,775	$0

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Revlimid	Lenalidomide	46	1,197	$862,858
Lenalidomide	Lenalidomide	41	1,134	$554,908
Vitrakvi	Larotrectinib Sulfate	13	390	$493,866
Imbruvica	Ibrutinib	23	644	$402,017
Pomalyst	Pomalidomide	16	448	$366,137

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.	113	$2,271	ABBVIE INC.
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 Leslie Klein, M.D.?

Tedicare shows public-source Medicare data for Leslie Klein, M.D. (NPI 1619101771), 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 Leslie Klein, M.D. have ACO affiliation data?

Leslie Klein, M.D. is shown with ACO affiliation data for Banner Health Network (MSSP, ACO ID A3229).

What billing organization is linked to Leslie Klein, M.D.?

Leslie Klein, M.D. is linked to IRONWOOD PHYSICIANS, PC (billing NPI 1740269299) in the available physician profile data.

Does Leslie Klein, M.D. have Open Payments data?

Leslie Klein, M.D. has 113 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.