What is Katrina Hammel's specialty?

Katrina Hammel (NPI 1780894527) is a Medicare-billing provider whose primary specialty is Internal Medicine in Winona, MN.

Where does Katrina Hammel practice?

Katrina Hammel practices in Winona, MN, based on the location reported in the CMS Medicare provider datasets for NPI 1780894527.

How much does Medicare pay Katrina Hammel?

Katrina Hammel (NPI 1780894527) received approximately $82K in total Medicare Part B payments, serving 530 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1780894527

Katrina HammelM.D.

PRACTICEWINONA HEALTH SERVICESSee all providers at this practice →

Internal MedicineWinona, MNI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

930

Unique beneficiaries

—

Total services

1,442

Distinct HCPCS

Medicare payment

$73K

Peer benchmark

Total Medicare services vs. 1,849 Internal Medicine providers in MN — top quintile (cohort median 405).

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.

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

Physician	Patients	Visits
WINONA HEALTH SERVICES	521	1,731
GUNDERSEN LUTHERAN MEDICAL CENTER INC	129	380
Giustino Albanese Diagnostic Radiology · Madison, WI	103	139
Joseph Kaiya Internal Medicine · Winona, MN	85	176
Marla Mcconkey Physician Assistant · Red Wing, MN	79	156
TRI-COUNTY MEMORIAL HOSPITAL, INC.	67	191
Bruce Bowser Diagnostic Radiology · Wichita, KS	59	78
Amy Macal Nurse Practitioner · Winona, MN	55	92
Carlos Morales Emergency Medicine · Winona, MN	55	115
TRI-COUNTY MEMORIAL HOSPITAL, INC.	47	163
Bryan Reed Internal Medicine · La Crosse, WI	43	154
NPI 1487664181	41	157

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