Quick answers
- Does Billie G. Kontny accept Medicare assignment?
- Yes. Medicare's clinician data says Billie G. Kontny accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Billie G. Kontny see?
- In 2024, CMS data shows 398 Original Medicare patients and 685 services for Billie G. Kontny. This counts Original Medicare only and measures volume, not quality.
- What is Billie G. Kontny's NPI number?
- 1043236128. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Billie G. Kontny, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 398 |
|---|---|
| Services billed to Medicare | 685 |
| Different services or procedures | 86 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Biopsy of large bowel using a flexible endoscope (45380)104 services
- Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)52 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)50 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)46 services
- Colorectal cancer screening; colonoscopy on individual at high risk (G0105)45 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure69%
- High cholesterol69%
- Arthritis35%
- Diabetes26%
- Anxiety24%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)20%
Hospitals where Billie G. Kontny works
Medicare's Facility Affiliation Data lists Billie G. Kontny at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Fort Memorial HospitalFort Atkinson, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520071
Practice locations
Addresses where Billie G. Kontny is enrolled with Medicare (CMS data updated October 2, 2026).
- 212 Milwaukee Ave WFort Atkinson, WI 53538 (920) 563‑7900
Group practices
Medicare enrollment lists Billie G. Kontny as a member of this group (CMS data updated October 2, 2026).
- Fort Healthcare Inc155 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Fort Atkinson
Clinicians with the same Medicare primary specialty in Fort Atkinson, WI — not a recommendation.
Other clinicians in Fort Healthcare Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1043236128 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians