Quick answers
- Which hospitals does Matthew K. Zimmermann work at?
- Medicare's official clinician data lists Matthew K. Zimmermann at 1 hospital: Gundersen Lutheran Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew K. Zimmermann see patients?
- Medicare's clinician data lists 5 practice locations, including Onalaska, WI, La Crosse, WI and Pr Du Chien, WI. Call before your visit to confirm the address.
- What is Matthew K. Zimmermann's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Matthew K. Zimmermann accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew K. Zimmermann 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 Matthew K. Zimmermann?
- (608) 783-4681, as listed in official Medicare / NPI Registry data.
- What is Matthew K. Zimmermann's NPI number?
- 1740285089. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew K. Zimmermann works
Medicare's Facility Affiliation Data lists Matthew K. Zimmermann at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Gundersen Lutheran Medical CenterLa Crosse, WI · Acute Care Hospital · CCN 520087
Practice locations
Addresses where Matthew K. Zimmermann is enrolled with Medicare (CMS data updated 2026-10-02).
- 1600 Main StOnalaska, WI 54650 (608) 783‑4681
- 1910 S AveLa Crosse, WI 54601 (608) 782‑7300
- 610 E Taylor StPr Du Chien, WI 53821 (608) 326‑6466
- 710 Denton StLa Crosse, WI 54601 (608) 782‑7300
- 724 Denton StLa Crosse, WI 54601 (608) 782‑7300
Group practices
Medicare enrollment lists Matthew K. Zimmermann as a member of these groups (CMS data updated 2026-10-02).
- Gundersen Lutheran Medical Center Inc895 clinicians in the group
- Gundersen Clinic Ltd418 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Onalaska
Clinicians with the same Medicare primary specialty in Onalaska, WI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740285089 |
| 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