Quick answers
- Which hospitals does Colin J. Kratochwill work at?
- Medicare's official clinician data lists Colin J. Kratochwill at 4 hospitals: Black River Memorial Hospital, Crossing Rivers Health Medical Center, Gundersen Lutheran Medical Center and Vernon Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Colin J. Kratochwill see patients?
- Medicare's clinician data lists 6 practice locations, including Onalaska, WI, Viroqua, WI and Tomah, WI. Call before your visit to confirm the address.
- What is Colin J. Kratochwill's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Colin J. Kratochwill accept Medicare assignment?
- Yes. Medicare's clinician data says Colin J. Kratochwill 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 Colin J. Kratochwill?
- (608) 783-4681, as listed in official Medicare / NPI Registry data.
- What is Colin J. Kratochwill's NPI number?
- 1659525798. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Colin J. Kratochwill works
Medicare's Facility Affiliation Data lists Colin J. Kratochwill at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Black River Memorial HospitalBlack River Falls, WI · Critical Access Hospital · CCN 521333
- Crossing Rivers Health Medical CenterPrairie Du Chien, WI · Critical Access Hospital · CCN 521330
- Gundersen Lutheran Medical CenterLa Crosse, WI · Acute Care Hospital · CCN 520087
- Vernon Memorial HospitalViroqua, WI · Critical Access Hospital · CCN 521348
Practice locations
Addresses where Colin J. Kratochwill is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1600 Main StOnalaska, WI 54650 (608) 783‑4681
- 407 S Main StViroqua, WI 54665 (608) 637‑3195
- 505 Gopher DrTomah, WI 54660 (608) 372‑4111
- 507 S Main StViroqua, WI 54665 (608) 637‑2101
- 610 E Taylor StPr Du Chien, WI 53821 (608) 326‑6466
Group practices
Medicare enrollment lists Colin J. Kratochwill as a member of this group (CMS data updated 2026-10-02).
- 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 | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659525798 |
| 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