Physician

Ruben Niesvizky, MD

According to 2025 Medicare claims, Ruben Niesvizky, MD (NPI: 1710074885) practices medical oncology in the Nassau County-Suffolk County, NY market, with the plurality of this provider's patient population coming from Nassau, NY. This provider's primary affiliated billing organization is WEILL MEDICAL COLLEGE OF CORNELL (NPI: 1770892580; TIN: 131623978) and primary practice location at 10065-8722. Niesvizky is affiliated with the NewYork Quality Care (ACO ID: A2571), participating under the MSSP model.

Niesvizky's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 229 traditional Medicare patients, billed 130,183 HCPCS/CPT codes, and received $3,861,505 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 514 prescription claims across 74 beneficiaries totaling $160,338 in drug costs, led by Gammaked (Immune Globul G/Gly/Iga Avg 46). Open Payments data shows 86 records totaling $871,119. 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 risen steadily, from $1,395,566 to $3,861,505. In contrast, Part D prescription costs have fallen sharply in recent years, from $16,314 to $160,338. 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	253	64,339	$1,395,566
2016	273	66,321	$2,299,124
2017	287	126,365	$2,969,389
2018	242	108,737	$3,141,982
2019	293	154,024	$4,070,793
2020	248	93,001	$3,161,556
2021	242	148,294	$4,523,007
2022	276	200,106	$5,402,592
2023	248	135,818	$3,556,262
2024	229	130,183	$3,861,505

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	68	249	$16,314
2016	86	459	$603,736
2017	100	782	$1,989,892
2018	112	978	$2,487,053
2019	114	979	$2,323,577
2020	96	753	$721,123
2021	82	530	$290,570
2022	86	423	$183,282
2023	80	439	$211,272
2024	74	514	$160,338

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
99215	Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	178	826	$161
99214	Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	57	141	$113
96401	Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle	60	612	$70
96365	Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less	57	432	$61
36415	Insertion of needle into vein for collection of blood sample	186	1,024	$9

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Gammaked	Immune Globul G/Gly/Iga Avg 46	12	336	$71,016
Privigen	Immun Glob G(Igg)/Pro/Iga 0-50	12	336	$25,738
Eliquis	Apixaban	21	630	$11,994
Valacyclovir	Valacyclovir Hcl	63	2,745	$2,636
Dexamethasone	Dexamethasone	17	983	$490

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.	31	$143,017	GlaxoSmithKline, LLC.
Research Payments	Reported research-related payment or transfer-of-value amount.	55	$728,102	PFIZER INC.
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 Ruben Niesvizky, MD?

Tedicare shows public-source Medicare data for Ruben Niesvizky, MD (NPI 1710074885), 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 Ruben Niesvizky, MD have ACO affiliation data?

Ruben Niesvizky, MD is shown with ACO affiliation data for NewYork Quality Care (MSSP, ACO ID A2571).

What billing organization is linked to Ruben Niesvizky, MD?

Ruben Niesvizky, MD is linked to WEILL MEDICAL COLLEGE OF CORNELL (billing NPI 1770892580) in the available physician profile data.

Does Ruben Niesvizky, MD have Open Payments data?

Ruben Niesvizky, MD has 86 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.