Quick answers
- Which hospitals does Jennifer Althoff work at?
- Medicare's official clinician data lists Jennifer Althoff at 2 hospitals: Mayo Clinic Health System Franciscan Healthcare Sparta and Mayo Clinic Health System-Franciscan Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jennifer Althoff see patients?
- Medicare's clinician data lists 4 practice locations, including Onalaska, WI, Sparta, WI and La Crosse, WI. Call before your visit to confirm the address.
- What is Jennifer Althoff's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Jennifer Althoff accept Medicare assignment?
- Yes. Medicare's clinician data says Jennifer Althoff 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 Jennifer Althoff?
- (608) 392-5000, as listed in official Medicare / NPI Registry data.
- What is Jennifer Althoff's NPI number?
- 1073545729. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jennifer Althoff works
Medicare's Facility Affiliation Data lists Jennifer Althoff at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mayo Clinic Health System Franciscan Healthcare SpartaSparta, WI · Critical Access Hospital · CCN 521305
- Mayo Clinic Health System-Franciscan Medical Center IncLa Crosse, WI · Acute Care Hospital · CCN 520004
Practice locations
Addresses where Jennifer Althoff is enrolled with Medicare (CMS data updated 2026-10-02).
- 191 Theater RdOnalaska, WI 54650 (608) 392‑5000
- 310 W Main StSparta, WI 54656 (608) 269‑1770
- 700 W Ave SLa Crosse, WI 54601 (608) 785‑0940
- 800 E Blackhawk AvePrairie Du Chien, WI 53821 (608) 326‑0808
Group practices
Medicare enrollment lists Jennifer Althoff as a member of this group (CMS data updated 2026-10-02).
- Mayo Clinic Health System-Southwest Wisconsin Region Inc534 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Onalaska
Clinicians with the same Medicare primary specialty in Onalaska, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073545729 |
| 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