Physician

John S Sierocki, M.D.

According to 2025 Medicare claims, John Sierocki, M.D. (NPI: 1487792354) practices medical oncology in the Trenton-Princeton, NJ market, with the plurality of this provider's patient population coming from Mercer, NJ. This provider's primary affiliated billing organization is PRINCETON MEDICAL GROUP,P.A. (NPI: 1063513679; TIN: 222306123) and primary practice location at 08536-1913. Sierocki is affiliated with the Aledade 25 NJ MSSP Enhanced (ACO ID: A3891), participating under the MSSP model.

Sierocki's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 276 traditional Medicare patients, billed 140,977 HCPCS/CPT codes, and received $1,785,247 in Medicare payments. The top billing code was 84443 (Blood test, thyroid stimulating hormone (tsh)). Part D data shows 2,749 prescription claims across 258 beneficiaries totaling $2,073,977 in drug costs, led by Xtandi (Enzalutamide). 2023 DME data shows 11 claims. Open Payments data shows 1 records totaling $90. 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 $3,108,118 to $1,785,247. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $1,133,235 and ending at $2,073,977. In contrast, DME billing represents a smaller volume and moved sharply higher in recent years, from $1,683 to $2,263.

Part B Carrier Billing Trend

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

Year	Patients	Clm Lines	Payment
2015	409	223,611	$3,108,118
2016	436	244,401	$3,652,814
2017	406	320,982	$3,617,788
2018	368	263,644	$3,828,462
2019	332	220,536	$3,025,466
2020	291	180,222	$2,467,109
2021	317	223,286	$2,499,595
2022	334	219,856	$2,780,924
2023	336	263,866	$2,834,536
2024	276	140,977	$1,785,247

Part D Events Trend

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

Year	Patients	Claims	Drug Cost
2015	221	2,663	$1,133,235
2016	249	2,921	$994,133
2017	261	3,101	$1,049,620
2018	262	2,882	$1,397,674
2019	264	2,925	$1,403,122
2020	257	3,037	$923,583
2021	289	2,936	$832,633
2022	286	2,951	$753,488
2023	252	2,633	$695,505
2024	258	2,749	$2,073,977

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	24	$3,152
2018	N/R	11	$787
2019	N/R	N/R	N/R
2020	N/R	40	$2,174
2021	N/R	68	$1,688
2022	N/R	51	$1,560
2023	N/R	11	$820
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
84443	Blood test, thyroid stimulating hormone (tsh)	244	1,552	$16
80053	Blood test, comprehensive group of blood chemicals	254	1,612	$10
36415	Insertion of needle into vein for collection of blood sample	260	1,695	$9
85025	Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count	256	1,646	$8
83615	Lactate dehydrogenase (enzyme) level	242	1,600	$6

Top 5 Part D drugs in 2024

By total drug costs.

Drug	Generic	Claims	Total Day Supply	Total Drug Cost
Xtandi	Enzalutamide	19	570	$264,143
Nubeqa	Darolutamide	18	540	$244,158
Gammagard Liquid	Immun Glob G(Igg)/Gly/Iga Ov50	37	639	$210,793
Verzenio	Abemaciclib	17	476	$177,020
Lupron Depot	Leuprolide Acetate	42	2,016	$135,701

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.	1	$90	Gilead Sciences, 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 John S. Sierocki, M.D.?

Tedicare shows public-source Medicare data for John S. Sierocki, M.D. (NPI 1487792354), 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 S. Sierocki, M.D. have ACO affiliation data?

John S. Sierocki, M.D. is shown with ACO affiliation data for Aledade 25 NJ MSSP Enhanced (MSSP, ACO ID A3891).

What billing organization is linked to John S. Sierocki, M.D.?

John S. Sierocki, M.D. is linked to PRINCETON MEDICAL GROUP,P.A. (billing NPI 1063513679) in the available physician profile data.

Does John S. Sierocki, M.D. have Open Payments data?

John S. Sierocki, M.D. has 1 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.