JOHN HERATH, MD
GLMC ONALASKA CLINIC
Direct Primary Care
Managing complex health needs across the lifespan through evidence-based internal medicine.
Credentials & Training
Federally verified- Credential
- MD
- Medical school
- University of Minnesota Medical School
- Graduated
- 1999
- Medicare specialty
- Internal Medicine
- Group practice
- Gundersen Clinic Ltd · 422 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked October 2026.
About
John Herath, MD, practices in Onalaska, Wisconsin. The specialty of internal medicine focuses on the diagnosis and treatment of complex illnesses in adults.
Internal medicine physicians manage acute and chronic conditions, providing care for issues such as heart disease, diabetes, kidney disease, and respiratory illnesses. Care encompasses preventive screenings, managing ongoing conditions, and diagnosing complex symptoms.
The practice operates as a direct-pay service. Medicare assignment is accepted by the provider.
Areas of Focus
Conditions Treated
Specialties
Patients Served
Frequently Asked Questions
What types of care does internal medicine cover?
Internal medicine physicians manage acute and chronic conditions, providing care for issues such as heart disease, diabetes, kidney disease, and respiratory illnesses.
Is this provider accepting new patients?
Information regarding new patient status is not available.
Does this provider accept Medicare?
Yes, the provider accepts Medicare assignment.
What is the typical focus of an internal medicine visit?
Visits generally involve the diagnosis and treatment of complex illnesses in adults, covering preventive screenings and managing ongoing conditions.
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