What is Michael Willen's specialty?

Michael Willen (NPI 1912994849) is a Medicare-billing provider whose primary specialty is Hematology-Oncology in Clifton Park, NY.

Where does Michael Willen practice?

Michael Willen practices in Clifton Park, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1912994849.

How much does Medicare pay Michael Willen?

Michael Willen (NPI 1912994849) received approximately $6K in total Medicare Part B payments, serving 61 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1912994849

Michael WillenM.D.

Hematology-OncologyClifton Park, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$5K

Peer benchmark

Total Medicare services vs. 628 Hematology-Oncology providers in NY — bottom quintile (cohort median 883).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

5.4

Cost

76.6

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Michael Willen'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). 40 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
WEISSMAN, CHARLES	128	1,227
ALBANY MEDICAL CENTER HOSPITAL	105	748
SAMARITAN HOSPITAL OF TROY, NEW YORK	97	572
ST. PETER'S HOSPITAL OF THE CITY OF ALBANY	54	256
John Phelan Hematology-Oncology · Albany, NY	48	230
CENTREX CLINICAL LABORATORIES INC	47	261
Howard Schlossberg Medical Oncology · Clifton Park, NY	45	244
RESTA, REGINA	39	91
Laboratory Corporation Of America Holdings Clinical Laboratory · Raritan, NJ	33	128
ELLIS HOSPITAL	31	146
Rufus Collea Medical Oncology · Albany, NY	28	136
Robert Benton Cardiology · Troy, NY	21	63

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