Quick answers
- Which hospitals does Daniel S. Wientzen work at?
- Medicare's official clinician data lists Daniel S. Wientzen at 4 hospitals: Gundersen Lutheran Medical Center, Gundersen Palmer Lutheran Hospital and Clinics, Regional Health Services of Howard County and Winnmed. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Daniel S. Wientzen see patients?
- Medicare's clinician data lists 2 practice locations, including Decorah, IA. Call before your visit to confirm the address.
- What is Daniel S. Wientzen's specialty?
- Medicare lists Family Practice as the primary specialty, and also Emergency Medicine.
- Does Daniel S. Wientzen accept Medicare assignment?
- Yes. Medicare's clinician data says Daniel S. Wientzen 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 Daniel S. Wientzen offer telehealth?
- Medicare's clinician data says Daniel S. Wientzen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Daniel S. Wientzen?
- (563) 382-3140, as listed in official Medicare / NPI Registry data.
- What is Daniel S. Wientzen's NPI number?
- 1952417248. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Daniel S. Wientzen works
Medicare's Facility Affiliation Data lists Daniel S. Wientzen 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
- Gundersen Palmer Lutheran Hospital and ClinicsWest Union, IA · Critical Access Hospital · CCN 161316
- Regional Health Services of Howard CountyCresco, IA · Critical Access Hospital · CCN 161328
- WinnmedDecorah, IA · Critical Access Hospital · CCN 161371
Practice locations
Addresses where Daniel S. Wientzen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1830 State Hwy 9Decorah, IA 52101 (563) 382‑3140
- 1830 State Hwy 9, Suite 100Decorah, IA 52101 (563) 382‑3140
Group practices
Medicare enrollment lists Daniel S. Wientzen as a member of these groups (CMS data updated 2026-10-02).
- Gundersen Clinic Ltd418 clinicians in the group
- Gundersen Regional Clinics, LLC53 clinicians in the group
Specialties
- Family Practiceprimary
- Emergency Medicinealso
Other family doctors in Decorah
Clinicians with the same Medicare primary specialty in Decorah, IA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1952417248 |
| 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