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PROVIDER PROFILE · NPI 1972592384

Marshall HamillM.D.

OphthalmologyHouston, TXI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
PRESCRIBING · PART D · 2024
Total Rx claims
847
Beneficiaries
—
Total drug cost
$68K
Distinct drugs
9
Brand share
30.7%
Top prescribed drugs
Fluorometholone368 claims
Difluprednate123 claims
Moxifloxacin Hcl98 claims
Polymyxin B Sulf/Trimethoprim93 claims
Prednisolone Acetate41 claims
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
698
Unique beneficiaries
—
Total services
886
Distinct HCPCS
10
Medicare payment
$128K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,238 Ophthalmology providers in TX — below median (cohort median 1,864).
REFERRAL NETWORK

Where Marshall Hamill'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). 11 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
CHI ST. LUKE'S HEALTH BAYLOR COLLEGE OF MEDICINE MEDICAL CENTER118335
MORETTO, MATTHEW44122
BIEGEL, DIANE4396
Quest Diagnostics Clinical Laboratories Inc
Clinical Laboratory · Houston, TX
40121
SELASSIE, RAHEL3873
HARRIS COUNTY HOSPITAL DISTRICT32105
BAYLOR COLLEGE OF MEDICINE AMBULATORY SURGERY CENTER2556
Clinical Pathology Laboratories, Inc.
Clinical Laboratory · Austin, TX
1837
UNIVERSITY OF TEXAS M. D. ANDERSON CANCER CENTER1766
Benjamin Frankfort
Ophthalmology · Houston, TX
1546
Melissa Wolf
Certified Registered Nurse Anesthetist (CRNA) · Houston, TX
1434
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.