Quick answers
- Which hospitals does Amber R. Oshan work at?
- Medicare's official clinician data lists Amber R. Oshan at 1 hospital: Gundersen Lutheran Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Amber R. Oshan see patients?
- Medicare's clinician data lists 6 practice locations, including Sparta, WI, Onalaska, WI and Friendship, WI. Call before your visit to confirm the address.
- What is Amber R. Oshan's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Amber R. Oshan accept Medicare assignment?
- Yes. Medicare's clinician data says Amber R. Oshan 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.
- Does Amber R. Oshan offer telehealth?
- Medicare's clinician data says Amber R. Oshan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Amber R. Oshan?
- (608) 269-6731, as listed in official Medicare / NPI Registry data.
- What is Amber R. Oshan's NPI number?
- 1649274085. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Amber R. Oshan works
Medicare's Facility Affiliation Data lists Amber R. Oshan 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 Amber R. Oshan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1111 W Wisconsin StSparta, WI 54656 (608) 269‑6731
- 1600 Main StOnalaska, WI 54650 (608) 783‑4681
- 402 A W Lake StFriendship, WI 53934 (608) 339‑8471
- 402 W Lake StFriendship, WI 53934 (608) 339‑3331
- 505 Gopher DrTomah, WI 54660 (608) 372‑4111
Group practices
Medicare enrollment lists Amber R. Oshan 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 Sparta
Clinicians with the same Medicare primary specialty in Sparta, WI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1649274085 |
| 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