caretrace.iopowered by▸healthparse
SearchCohort Builder
Tools▾
KOL FinderTerritoriesDrug Compare
AI Query
Browse▾
By stateBy specialty
Pricing
SearchCohort BuilderToolsKOL FinderTerritoriesDrug CompareAI QueryBrowseBy stateBy specialtyPricing
PROVIDER PROFILE · NPI 1073734935

Marcus MayusM.D.

PRACTICEMARCUS MAYUS MD INCSee all providers at this practice →
Internal MedicineGreenwich, CTI
CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore
OIG/SAM exclusion screening, sanctions history
© 2026 CareTrace
PricingContactPrivacyTerms
FACILITY AFFILIATIONS

Hospital & Facility Affiliations (10)

CCN 077066
Home health agency
CCN 077074
Home health agency
CCN 077200
Home health agency
CCN 077252
Home health agency
CCN 077278
Home health agency
CCN 070006
Hospital
CCN 070018
Hospital
CCN 070022
Hospital
CCN 333030
Inpatient rehabilitation facility
CCN 075421
Nursing home
PRESCRIBING · PART D · 2024
Total Rx claims
16,259
Beneficiaries
—
Total drug cost
$1.6M
Distinct drugs
198
Brand share
18.8%
Top prescribed drugs
Levothyroxine Sodium927 claims
Rosuvastatin Calcium837 claims
Atorvastatin Calcium836 claims
Losartan Potassium543 claims
Amlodipine Besylate518 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
Total received
$5K
Payment records
243
By payment type
Food and Beverage$5K
Education$48
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
5,700
Unique beneficiaries
—
Total services
11,466
Distinct HCPCS
26
Medicare payment
$745K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,650 Internal Medicine providers in CT — top quintile (cohort median 549).
REFERRAL NETWORK

Where Marcus Mayus'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). 39 inbound referrers · 88 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
Greenwich Emergency Medical Service, Inc.
Ambulance Service Provider · Riverside, CT
125254
Francis Walsh
Nephrology · Cos Cob, CT
122447
Alexander Delvecchio
Clinical Cardiac Electrophysiology · Greenwich, CT
116383
David Evans
Diagnostic Radiology · Greenwich, CT
115262
NPI 1427168129100264
Glenn Gandelman
Cardiology · Greenwich, CT
63204
Christopher Howes
Interventional Cardiology · Branford, CT
56151
NPI 106342292155195
HARTFORD HEALTHCARE LABORATORIES49448
Francis Neeson
Cardiology · Greenwich, CT
4682
Erez Salik
Interventional Radiology · Greenwich, CT
4485
STAMFORD HOSPITAL43105
Refers patients to
Outbound — where patients go next
PhysicianPatientsVisits
GREENWICH HOSPITAL4972,696
James Brunetti
Internal Medicine · Greenwich, CT
2941,457
Francis Walsh
Nephrology · Cos Cob, CT
152661
Scott Sullivan
Diagnostic Radiology · Greenwich, CT
130288
MULLEN, DAVID126274
Kapil Desai
Diagnostic Radiology · Greenwich, CT
125253
Linda Latrenta
Diagnostic Radiology · Greenwich, CT
110230
Christopher Fey
Diagnostic Radiology · Greenwich, CT
103201
NPI 142716812994292
David Evans
Diagnostic Radiology · Greenwich, CT
84192
Laura Hodges
Diagnostic Radiology · Greenwich, CT
81202
Shannon Desimone
Nurse Practitioner · Stamford, CT
79361
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.