What is Timothy Toonen's specialty?

Timothy Toonen (NPI 1770552317) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Saint Paul, MN.

Where does Timothy Toonen practice?

Timothy Toonen practices in Saint Paul, MN, based on the location reported in the CMS Medicare provider datasets for NPI 1770552317.

How much does Medicare pay Timothy Toonen?

Timothy Toonen (NPI 1770552317) received approximately $607K in total Medicare Part B payments, serving 154 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1770552317

Timothy ToonenM.D.

PRACTICEMINNESOTA ONCOLOGY HEMATOLOGY, PASee all providers at this practice →

Hematology-OncologySaint Paul, MNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

803

Unique beneficiaries

—

Total services

1,885

Distinct HCPCS

Medicare payment

$43K

Peer benchmark

Total Medicare services vs. 189 Hematology-Oncology providers in MN — top quintile (cohort median 389).

PRESCRIBING · PART D · 2024

Total Rx claims

150

Beneficiaries

—

Total drug cost

$613K

Distinct drugs

Brand share

25.3%

Top prescribed drugs

Prednisone37 claims

Hydroxyurea29 claims

Lenalidomide20 claims

Acyclovir19 claims

Zanubrutinib18 claims

QUALITY · MIPS · 2024

Final MIPS score

89.2

Quality

72.3

Cost

0.0

Improvement activities

40.0

Promoting interop.

98.0

Payment adjustment

0.60%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Timothy Toonen'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). 11 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
ALLINA HEALTH SYSTEM	114	535
Sara Torgerson Hematology-Oncology · Saint Paul, MN	65	629
DUCKER, THOMAS	64	588
Matthew Baldwin Diagnostic Radiology · Roseville, MN	25	84
Paul Carolan Diagnostic Radiology · Roseville, MN	24	79
HEALTHEAST ST JOSEPHS HOSPITAL	19	155
Amy Schorn Nurse Practitioner · Scottsdale, AZ	16	43
Angela Tai Diagnostic Radiology · Roseville, MN	13	44
Keith Wittenberg Diagnostic Radiology · Roseville, MN	13	35
FARNIOK, KATHRYN	12	39
JONES, JOHN	11	55

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