Quick answers
- Which hospitals does Jon A. Ferlmann work at?
- Medicare's official clinician data lists Jon A. Ferlmann at 3 hospitals: Aurora Lakeland Medical Center, Aurora Memorial Hospital Burlington and Corewell Health Watervliet Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jon A. Ferlmann see patients?
- Medicare's clinician data lists 1 practice location in Lake Geneva, WI. Call before your visit to confirm the address.
- What is Jon A. Ferlmann's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jon A. Ferlmann accept Medicare assignment?
- Yes. Medicare's clinician data says Jon A. Ferlmann accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Jon A. Ferlmann?
- (262) 249-5000, as listed in official Medicare / NPI Registry data.
- What is Jon A. Ferlmann's NPI number?
- 1669001046. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jon A. Ferlmann works
Medicare's Facility Affiliation Data lists Jon A. Ferlmann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aurora Lakeland Medical CenterElkhorn, WI · Acute Care Hospital · CCN 520102
- Aurora Memorial Hospital BurlingtonBurlington, WI · Acute Care Hospital · CCN 520059
- Corewell Health Watervliet HospitalWatervliet, MI · Acute Care Hospital · CCN 230078
Practice locations
Addresses where Jon A. Ferlmann is enrolled with Medicare (CMS data updated 2026-10-02).
- 146 E Geneva SqLake Geneva, WI 53147 (262) 249‑5000
Group practices
Medicare enrollment lists Jon A. Ferlmann as a member of this group (CMS data updated 2026-10-02).
- Aurora Medical Group, Inc.3,813 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Lake Geneva
Clinicians with the same Medicare primary specialty in Lake Geneva, WI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Arizona College Of Osteopathic Medicine Mid Western University |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1669001046 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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