What is Mark Chazen's specialty?

Mark Chazen (NPI 1518931989) is a Medicare-billing provider whose primary specialty is Urology in Cheektowaga, NY.

Where does Mark Chazen practice?

Mark Chazen practices in Cheektowaga, NY, based on the location reported in the CMS Medicare provider datasets for NPI 1518931989.

How much does Medicare pay Mark Chazen?

Mark Chazen (NPI 1518931989) received approximately $173K in total Medicare Part B payments, serving 582 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518931989

Mark ChazenM.D.

UrologyCheektowaga, NYI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

1,994

Unique beneficiaries

—

Total services

2,938

Distinct HCPCS

Medicare payment

$86K

Peer benchmark

Total Medicare services vs. 756 Urology providers in NY — above median (cohort median 1,574).

PRESCRIBING · PART D · 2024

Total Rx claims

1,015

Beneficiaries

—

Total drug cost

$178K

Distinct drugs

Brand share

32.7%

Top prescribed drugs

Tamsulosin Hcl317 claims

Finasteride125 claims

Mirabegron113 claims

Vibegron86 claims

Trospium Chloride71 claims

QUALITY · MIPS · 2024

Final MIPS score

75.6

Quality

39.8

Cost

83.3

Improvement activities

40.0

Promoting interop.

88.0

Payment adjustment

0.02%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$304

Payment records

By payment type

Food and Beverage$304

Top paying entities

Food and Beverage$304

REFERRAL NETWORK

Where Mark Chazen'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). 30 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
BERTRAND CHAFFEE HOSPITAL	50	289
SISTERS OF CHARITY HOSPITAL	46	117
Charles Lesh Diagnostic Radiology · Lewiston, NY	38	101
KALEIDA HEALTH	33	89
John Pinski Urology · Cheektowaga, NY	30	77
Andrew Dunn Diagnostic Radiology · Williamsville, NY	27	65
Keith Kaplan Diagnostic Radiology · Amherst, NY	24	49
Lasalle Ambulance Inc Ambulance Service Provider · Buffalo, NY	24	79
John Schrecengost Pathology · Jamestown, NY	23	79
TURKIEWICZ, MARY	22	46
PLATT, BRUCE	22	45
Michael Hocko Infectious Disease · Buffalo, NY	22	53

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