What is Ben Marsan's specialty?

Ben Marsan (NPI 1518977479) is a Medicare-billing provider whose primary specialty is Vascular Surgery in Darien, CT.

Where does Ben Marsan practice?

Ben Marsan practices in Darien, CT, based on the location reported in the CMS Medicare provider datasets for NPI 1518977479.

How much does Medicare pay Ben Marsan?

Ben Marsan (NPI 1518977479) received approximately $186K in total Medicare Part B payments, serving 251 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1518977479

Ben MarsanM.D.

PRACTICESASCO RIVER CENTERSee all providers at this practice →

Vascular SurgeryDarien, CTI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

608

Unique beneficiaries

—

Total services

1,254

Distinct HCPCS

Medicare payment

$82K

Peer benchmark

Total Medicare services vs. 67 Vascular Surgery providers in CT — above median (cohort median 1,148).

PRESCRIBING · PART D · 2024

Total Rx claims

107

Beneficiaries

—

Total drug cost

$31K

Distinct drugs

Brand share

73.8%

Top prescribed drugs

Clopidogrel Bisulfate45 claims

Rivaroxaban34 claims

Cilostazol28 claims

QUALITY · MIPS · 2024

Final MIPS score

97.6

Quality

8.2

Cost

77.2

Improvement activities

40.0

Promoting interop.

88.0

Payment adjustment

0.95%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$13K

Payment records

By payment type

Long term medical supply or device loan$11K

Food and Beverage$1K

Top paying entities

Long term medical supply or device loan$11K

Food and Beverage$1K

REFERRAL NETWORK

Where Ben Marsan'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Llc Clinical Laboratory · Wallingford, CT	79	302
STAMFORD HOSPITAL	65	423
NORWALK HOSPITAL ASSOCIATION	33	131
THE GRIFFIN HOSPITAL	29	132
Lee Goldstein Vascular Surgery · Stratford, CT	18	49
HARTFORD HEALTHCARE LABORATORIES	17	82
DVA RENAL HEALTHCARE INC	15	108
Jonathan Bowman Vascular Surgery · Darien, CT	13	52
MICHAELSON, STEPHEN	12	51

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