Quick answers
- Which hospitals does William Du work at?
- Medicare's official clinician data lists William Du at 1 hospital: Buffalo Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Du see patients?
- Medicare's clinician data lists 3 practice locations, including New Ulm, MN, River Falls, WI and Minneapolis, MN. Call before your visit to confirm the address.
- What is William Du's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does William Du accept Medicare assignment?
- Yes. Medicare's clinician data says William Du 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 William Du offer telehealth?
- Medicare's clinician data says William Du offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William Du?
- (507) 217-1327, as listed in official Medicare / NPI Registry data.
- What is William Du's NPI number?
- 1558723783. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Du works
Medicare's Facility Affiliation Data lists William Du at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Buffalo HospitalBuffalo, MN · Acute Care Hospital · CCN 240076
Practice locations
Addresses where William Du is enrolled with Medicare (CMS data updated 2026-10-02).
- 1324 5th St NNew Ulm, MN 56073 (507) 217‑1327
- 1629 E Division StRiver Falls, WI 54022 (715) 307‑6000
- 2925 Chicago AveMinneapolis, MN 55407 (651) 262‑7633
Group practices
Medicare enrollment lists William Du as a member of this group (CMS data updated 2026-10-02).
- Allina Health System3,842 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in New Ulm
Clinicians with the same Medicare primary specialty in New Ulm, MN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1558723783 |
| 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