What is Marika Greiff's specialty?

Marika Greiff (NPI 1699829044) is a Medicare-billing provider whose primary specialty is Physical Medicine and Rehabilitation in Chicago, IL.

Where does Marika Greiff practice?

Marika Greiff practices in Chicago, IL, based on the location reported in the CMS Medicare provider datasets for NPI 1699829044.

How much does Medicare pay Marika Greiff?

Marika Greiff (NPI 1699829044) received approximately $31K in total Medicare Part B payments, serving 60 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1699829044

Marika GreiffMD

PRACTICEUICSee all providers at this practice →

Physical Medicine and RehabilitationChicago, ILI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

138

Unique beneficiaries

—

Total services

385

Distinct HCPCS

Medicare payment

$29K

Peer benchmark

Total Medicare services vs. 355 Physical Medicine and Rehabilitation providers in IL — bottom quintile (cohort median 1,381).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$421

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Atorvastatin Calcium22 claims

Gabapentin17 claims

Amlodipine Besylate15 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 140018

Hospital

CCN 143025

Inpatient rehabilitation facility

REFERRAL NETWORK

Where Marika Greiff'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). 10 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Edward Michals Diagnostic Radiology · Chicago, IL	39	160
Thomas Anderson Diagnostic Radiology · Libertyville, IL	34	168
MUTHUKRISHNAN, SRIRANJINI	25	92
SONG, WOOJIN	13	35
Sergey Neckrysh Neurosurgery · Chicago, IL	13	114
Richard Green Diagnostic Radiology · Chicago, IL	13	43
Adhir Shroff Cardiology · Chicago, IL	12	32
BROWN, NANCY	11	39
MAR, WINNIE	11	29
FARZANEH-FAR, AFSHIN	11	31

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