ASPIRUS MARATHON CLINIC
Medicare Clinicians for NPI 1164500351
Clinic/Center in Marathon, WI
Clinicians Billing Medicare Through This Organization CMS
Clinicians who reassign their Medicare billing to this organization, per CMS enrollment records.
Aspirus Marathon Clinic in Marathon, WI bills Medicare for 410 clinicians across 38 Medicare specialties. The largest specialties are Nurse Practitioner with 108, Family Practice with 56 and Obstetrics/Gynecology with 39. Of these, 2 practice at this address and 119 within 10 miles. Search by name or filter by specialty; each name links to that clinician's NPI profile.
This page lists the 250 clinicians practicing nearest to this organization's location. All 410 are counted in the totals above.
Nurse Practitioner (91 of 108)
Medford, WI 54451
Family Practice (41 of 56)
Obstetrics/Gynecology (15 of 39)
Wausau, WI 54401
Physical Therapist in Private Practice (13 of 14)
Pediatric Medicine (10 of 15)
Occupational Therapist in Private Practice (9)
Urology (7 of 14)
Internal Medicine (6 of 14)
Podiatry (6 of 8)
Wausau, WI 54401
Wausau, WI 54401
Cardiac Electrophysiology (3)
Cardiovascular Disease (Cardiology) (3 of 15)
Clinical Psychologist (3)
General Surgery (3 of 4)
Hospitalist (3 of 4)
Neurology (3 of 34)
Orthopedic Surgery (3 of 9)
Physical Medicine and Rehabilitation (3 of 6)
Psychiatry (3 of 7)
Registered Dietitian or Nutrition Professional (3)
Diagnostic Radiology (2)
Interventional Cardiology (2 of 4)
Mental Health Counselor (2)
Nephrology (2 of 6)
Neurosurgery (2 of 4)
Qualified Speech Language Pathologist (2)
Thoracic Surgery (2 of 4)
Cardiac Surgery (1)
Certified Nurse Midwife (CNM) (1)
Emergency Medicine (1 of 2)
Endocrinology (1)
General Practice (1)
Pain Management (1 of 2)
Plastic and Reconstructive Surgery (1 of 2)
Sports Medicine (1)
About this data
Medicare reassignment. A clinician who works for a hospital, clinic or medical group usually signs a Medicare reassignment (form CMS-855R). It lets the organization bill Medicare for the clinician's services and receive the payment. This page lists the clinicians whose reassignment to Aspirus Marathon Clinic appears in the CMS Revalidation Reassignment List.
Who is included. Clinicians who bill Medicare under their own NPI through this organization. A clinician can reassign to more than one organization, so the same name may also appear under other groups.
Nearest 250. The totals and specialty counts cover all 410 clinicians. The list shows the 250 whose practice address is closest to this NPI's location, so each Aspirus Marathon Clinic location shows its own nearest clinicians.
Addresses and phone numbers come from each clinician's own NPPES record, so they may point to another office or to the clinician's own practice.
Source: CMS Revalidation Reassignment List, October 2026 release; addresses, phone numbers and Medicare status from NPPES and PECOS. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
