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PROVIDER PROFILE · NPI 1780894527

Katrina HammelM.D.

PRACTICEWINONA HEALTH SERVICESSee all providers at this practice →
Internal MedicineWinona, MNI
CROSS-REFERENCE

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ProviderScore
OIG/SAM exclusion screening, sanctions history
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PRESCRIBING · PART D · 2024
Total Rx claims
16,375
Beneficiaries
—
Total drug cost
$1.5M
Distinct drugs
203
Brand share
23.8%
Top prescribed drugs
Atorvastatin Calcium858 claims
Omeprazole617 claims
Metoprolol Succinate613 claims
Levothyroxine Sodium595 claims
Amlodipine Besylate554 claims
QUALITY · MIPS · 2024
No data available for this provider in 2024.
INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024
No data available for this provider in 2024.
MEDICARE UTILIZATION · PART B · 2024
Total beneficiaries
930
Unique beneficiaries
—
Total services
1,442
Distinct HCPCS
13
Medicare payment
$73K
Peer benchmark
Q1
Q2
Q3
Q4
Q5
Total Medicare services vs. 1,849 Internal Medicine providers in MN — top quintile (cohort median 405).
REFERRAL NETWORK

Where Katrina Hammel'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). 37 inbound referrers · 0 outbound destinations.

Receives referrals from
Inbound — who sends patients here
PhysicianPatientsVisits
WINONA HEALTH SERVICES5211,731
GUNDERSEN LUTHERAN MEDICAL CENTER INC129380
Giustino Albanese
Diagnostic Radiology · Madison, WI
103139
Joseph Kaiya
Internal Medicine · Winona, MN
85176
Marla Mcconkey
Physician Assistant · Red Wing, MN
79156
TRI-COUNTY MEMORIAL HOSPITAL, INC.67191
Bruce Bowser
Diagnostic Radiology · Wichita, KS
5978
Amy Macal
Nurse Practitioner · Winona, MN
5592
Carlos Morales
Emergency Medicine · Winona, MN
55115
TRI-COUNTY MEMORIAL HOSPITAL, INC.47163
Bryan Reed
Internal Medicine · La Crosse, WI
43154
NPI 148766418141157
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.