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PROVIDER PROFILE · NPI 1174523443

Mark BrennanDO

Vascular SurgeryJohnson City, NYI
CROSS-REFERENCE

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MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
129
Unique beneficiaries
—
Total services
143
Distinct HCPCS
7
Medicare payment
$10K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 316 Vascular Surgery providers in NY — bottom quintile (cohort median 1,108).
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (2)

CCN 330033
Hospital
CCN 330394
Hospital
PRESCRIBING · PART D · 2024
Total Rx claims
54
Beneficiaries
—
Total drug cost
$21K
Distinct drugs
2
Brand share
100.0%
Top prescribed drugs
Rivaroxaban33 claims
Clopidogrel Bisulfate21 claims
QUALITY · MIPS · 2024
Final MIPS score
96.4
Quality
90.7
Cost
0.0
Improvement activities
40.0
Promoting interop.
99.0
Payment adjustment
0.90%
Group
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$3K
Payment records
32
By payment type
Food and Beverage$2K
Travel and Lodging$327
REFERRAL NETWORK

Where Mark Brennan'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). 32 inbound referrers · 71 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Venkatesh Jayaraman
Nephrology · Binghamton, NY
65429
Peter Nicholson
Diagnostic Radiology · Jamestown, NY
60153
Francis Mangiacapra
Diagnostic Radiology · Johnson City, NY
54146
Mark Rivlin
Anesthesiology · Johnson City, NY
41102
James Vincens
Cardiology · Johnson City, NY
3076
VESTAL HEALTHCARE, LLC28107
Paul Traverse
Cardiology · Johnson City, NY
2752
Michail Vitellas
Cardiology · Johnson City, NY
2447
Jacqueline Havriliak
Certified Registered Nurse Anesthetist (CRNA) · Johnson City, NY
2462
Mahmood Ahmed
Internal Medicine · Johnson City, NY
2260
Afzal Rehman
Cardiology · Johnson City, NY
2041
VESTAL HEALTHCARE, LLC1961
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
UNITED HEALTH SERVICES HOSPITALS, INC.3102,332
Edward Santelli
Diagnostic Radiology · Johnson City, NY
109342
Karen Dunham
Physician Assistant · Johnson City, NY
71409
Hisham Kashou
Cardiology · Johnson City, NY
69298
Mohammad Quasem
Nephrology · Binghamton, NY
68468
Francis Mangiacapra
Diagnostic Radiology · Johnson City, NY
67202
Andrew Goldschmidt
Diagnostic Radiology · Johnson City, NY
66170
James Terzian
Diagnostic Radiology · Rome, GA
57137
Venkatesh Jayaraman
Nephrology · Binghamton, NY
57407
Peter Nicholson
Diagnostic Radiology · Jamestown, NY
56156
OUR LADY OF LOURDES MEMORIAL HOSPITAL INC.55224
ROTHE, ANDREA45127
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.