What is Mark Ratain's specialty?

Mark Ratain (NPI 1255494779) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Chicago, IL.

Where does Mark Ratain practice?

Mark Ratain practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1255494779.

How much does Medicare pay Mark Ratain?

Mark Ratain (NPI 1255494779) received approximately $11K in total Medicare Part B payments, serving 90 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1255494779

Mark Ratain

PRACTICEMEDCENTRIX INCSee all providers at this practice →

Hematology-OncologyChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$10K

Peer benchmark

Total Medicare services vs. 444 Hematology-Oncology providers in IL — bottom quintile (cohort median 1,266).

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

Total received

$11K

Payment records

By payment type

Consulting Fee$11K

Top paying entities

Consulting Fee$11K

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 140088

Hospital

REFERRAL NETWORK

Where Mark Ratain'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). 3 inbound referrers · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
John Edward Blair Interventional Cardiology · Seattle, WA	13	38
MACMAHON, HEBER	11	40
Shellie Williams Geriatric Medicine · Chicago, IL	11	68

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
THE UNIVERSITY OF CHICAGO MEDICAL CENTER	57	396
Stacie Levine Geriatric Medicine · Chicago, IL	18	76
Monica Malec Geriatric Medicine · Chicago, IL	17	83
Shellie Williams Geriatric Medicine · Chicago, IL	11	86
Steven Montner Diagnostic Radiology · Chicago, IL	11	48
Medical Express Ambulance Service, Inc Ambulance Service Provider · Skokie, IL	11	63

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