What is John Sierocki's specialty?

John Sierocki (NPI 1487792354) is a Medicare-billing provider whose primary specialty is Medical Oncology in Princeton, NJ.

Where does John Sierocki practice?

John Sierocki practices in Princeton, NJ, based on the location reported in the CMS Medicare provider datasets for NPI 1487792354.

How much does Medicare pay John Sierocki?

John Sierocki (NPI 1487792354) received approximately $1.8M in total Medicare Part B payments, serving 276 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1487792354

John SierockiM.D.

Medical OncologyPrinceton, NJI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

3,240

Unique beneficiaries

—

Total services

84,174

Distinct HCPCS

Medicare payment

$564K

Peer benchmark

Total Medicare services vs. 68 Medical Oncology providers in NJ — top quintile (cohort median 1,435).

PRESCRIBING · PART D · 2024

Total Rx claims

2,290

Beneficiaries

—

Total drug cost

$1.2M

Distinct drugs

Brand share

19.0%

Top prescribed drugs

Levothyroxine Sodium183 claims

Pantoprazole Sodium133 claims

Letrozole88 claims

Omeprazole87 claims

Amlodipine Besylate81 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$90

Payment records

By payment type

Education$90

Top paying entities

Education$90

REFERRAL NETWORK

Where John Sierocki's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 34 inbound referrers · 65 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	324	18,505
Robert Berger Diagnostic Radiology · Kendall Park, NJ	52	589
Barry Perlman Diagnostic Radiology · Kendall Park, NJ	46	396
Andrew Costin Cardiology · Princeton, NJ	38	935
Kerstin Rubbert-Slawek Diagnostic Radiology · Kendall Park, NJ	38	355
Peter Yi Hematology-Oncology · Princeton, NJ	37	1,779
TENENZAPF, MARK	36	298
Mary Kitazono Hammell Diagnostic Radiology · Kendall Park, NJ	35	225
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	33	321
Prashant Bakhru Diagnostic Radiology · Kendall Park, NJ	31	169
David Youmans Diagnostic Radiology · Princeton, NJ	29	143
Fred Schlesinger Diagnostic Radiology · Kendall Park, NJ	28	149

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Norristown, PA	218	12,655
PRINCETON HEALTHCARE SYSTEM, A NEW JERSEY NON-PROFIT CORPORATION	162	3,411
Timothy Howard Diagnostic Radiology · Kendall Park, NJ	45	459
Barry Perlman Diagnostic Radiology · Kendall Park, NJ	43	287
GHAZI, JOHN	42	467
Robert Berger Diagnostic Radiology · Kendall Park, NJ	41	397
Andrew Costin Cardiology · Princeton, NJ	35	934
Peter Yi Hematology-Oncology · Princeton, NJ	34	1,574
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	33	289
TENENZAPF, MARK	33	275
Mary Kitazono Hammell Diagnostic Radiology · Kendall Park, NJ	32	184
Christopher Ananian Diagnostic Radiology · Kendall Park, NJ	32	314

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history