What is John Zubkus's specialty?

John Zubkus (NPI 1518919000) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Murfreesboro, TN.

Where does John Zubkus practice?

John Zubkus practices in Murfreesboro, TN, based on the location reported in the CMS Medicare provider datasets for NPI 1518919000.

How much does Medicare pay John Zubkus?

John Zubkus (NPI 1518919000) received approximately $3.0M in total Medicare Part B payments, serving 500 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518919000

John ZubkusMD

PRACTICETENNESSEE ONCOLOGY PHARMACY DISPENSINGSee all providers at this practice →

Hematology-OncologyMurfreesboro, TNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

3,704

Unique beneficiaries

—

Total services

65,900

Distinct HCPCS

Medicare payment

$443K

Peer benchmark

Total Medicare services vs. 206 Hematology-Oncology providers in TN — top quintile (cohort median 1,775).

PRESCRIBING · PART D · 2024

Total Rx claims

799

Beneficiaries

—

Total drug cost

$4.8M

Distinct drugs

Brand share

52.6%

Top prescribed drugs

Letrozole103 claims

Lenalidomide83 claims

Dexamethasone68 claims

Acyclovir54 claims

Enzalutamide51 claims

QUALITY · MIPS · 2024

Final MIPS score

92.7

Quality

3.6

Cost

70.8

Improvement activities

40.0

Promoting interop.

89.0

Payment adjustment

0.75%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$3K

Payment records

By payment type

Food and Beverage$3K

Top paying entities

Food and Beverage$3K

REFERRAL NETWORK

Where John Zubkus'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). 23 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
SAINT THOMAS RUTHERFORD HOSPITAL	115	872
Victor Gian Medical Oncology · Murfreesboro, TN	76	578
Pathgroup Labs, Llc Clinical Laboratory · Nashville, TN	47	218
HCA HEALTH SERVICES OF TENNESSEE, INC.	41	146
Darren Mullins Hematology-Oncology · Columbia, SC	37	429
Terence Casey Pathology · New Orleans, LA	34	168
VANDERBILT UNIVERSITY MEDICAL CENTER	31	167
Eric Green Diagnostic Radiology · Nashville, TN	27	106
MOSS, MAX	26	127
Gerald Thorburn Diagnostic Radiology · Nashville, TN	21	110
Charles Wendt Radiation Oncology · Murfreesboro, TN	20	557
Guy Mioton Internal Medicine · Murfreesboro, TN	18	103

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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

Healthparse Signals

Monitor this provider for changes — dated NPI change events