What is Timothy Wassenaar's specialty?

Timothy Wassenaar (NPI 1518928993) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Waukesha, WI.

Where does Timothy Wassenaar practice?

Timothy Wassenaar practices in Waukesha, WI, based on the location reported in the CMS Medicare provider datasets for NPI 1518928993.

How much does Medicare pay Timothy Wassenaar?

Timothy Wassenaar (NPI 1518928993) received approximately $49K in total Medicare Part B payments, serving 332 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518928993

Timothy WassenaarMD

PRACTICEKINEX MEDICAL COMPANY, LLCSee all providers at this practice →

Hematology-OncologyWaukesha, WII

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

432

Unique beneficiaries

—

Total services

620

Distinct HCPCS

Medicare payment

$48K

Peer benchmark

Total Medicare services vs. 202 Hematology-Oncology providers in WI — below median (cohort median 680).

PRESCRIBING · PART D · 2024

Total Rx claims

1,231

Beneficiaries

—

Total drug cost

$4.4M

Distinct drugs

Brand share

37.3%

Top prescribed drugs

Acyclovir198 claims

Apixaban139 claims

Hydroxyurea126 claims

Dexamethasone63 claims

Lenalidomide58 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Timothy Wassenaar'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). 26 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
PROHEALTH OCONOMOWOC MEMORIAL HOSPITAL, INC.	88	1,073
David Yenerich Diagnostic Radiology · Waukesha, WI	28	89
Mark Bakalars Diagnostic Radiology · Waukesha, WI	25	93
Loganathan Elangovan Nephrology · Waukesha, WI	22	238
Gregory Kass Diagnostic Radiology · Waukesha, WI	21	55
Kathleen Klaas Diagnostic Radiology · Waukesha, WI	20	72
MAMEROW, STEVEN	20	42
John Grogan Diagnostic Radiology · Waukesha, WI	19	69
Jennifer Bergin Diagnostic Radiology · Waukesha, WI	19	79
FETE, JEFFREY	19	72
Andrew Adamson Diagnostic Radiology · Wilmington, NC	18	46
Michael Whittaker Pathology · Waukesha, WI	17	74

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