What is Rena Zimmerman's specialty?

Rena Zimmerman (NPI 1851350318) is a Medicare-billing provider whose primary specialty is Radiation Oncology in Mchenry, IL.

Where does Rena Zimmerman practice?

Rena Zimmerman practices in Mchenry, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1851350318.

How much does Medicare pay Rena Zimmerman?

Rena Zimmerman (NPI 1851350318) received approximately $63K in total Medicare Part B payments, serving 93 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1851350318

Rena ZimmermanM.D.

PRACTICEINTEGRATIVE RADIATION ONCOLOGY CONSULTANTSSee all providers at this practice →

Radiation OncologyMchenry, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

271

Unique beneficiaries

—

Total services

848

Distinct HCPCS

Medicare payment

$53K

Peer benchmark

Total Medicare services vs. 195 Radiation Oncology providers in IL — below median (cohort median 1,646).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

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 Rena Zimmerman'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). 12 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
CLALLAM COUNTY PUBLIC HOSPITAL DISTRICT 2	191	3,717
Michael Shevach Radiation Oncology · Lakeland, FL	129	4,474
Northwest Pathology Pllc Clinical Laboratory · Bellingham, WA	52	203
Michael Fishman Diagnostic Radiology · Lynnwood, WA	42	276
Edward Sessions Diagnostic Radiology · Lynnwood, WA	35	179
TURNER, DEBORAH	29	204
JAMESTOWN S'KLALLAM TRIBE	25	195
Kurt Norman Hematology-Oncology · Seattle, WA	19	155
SWEDISH HEALTH SERVICES	19	170
Sandra Tatro General Surgery · Port Angeles, WA	16	99
Fayzel Lee Anesthesiology · Port Angeles, WA	13	39
OLYMPIC AMBULANCE SERVICE INC.	11	97

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