Quick answers
- Which hospitals does I-Wen Tseng work at?
- Medicare's official clinician data lists I-Wen Tseng at 1 hospital: Cass Lake Indian Health Services Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does I-Wen Tseng see patients?
- Medicare's clinician data lists 1 practice location in Cass Lake, MN. Call before your visit to confirm the address.
- What is I-Wen Tseng's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does I-Wen Tseng accept Medicare assignment?
- Yes. Medicare's clinician data says I-Wen Tseng 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 I-Wen Tseng's NPI number?
- 1376613323. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where I-Wen Tseng works
Medicare's Facility Affiliation Data lists I-Wen Tseng at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cass Lake Indian Health Services HospitalCass Lake, MN · Critical Access Hospital · CCN 241358
Practice locations
Addresses where I-Wen Tseng is enrolled with Medicare (CMS data updated 2026-10-02).
- 425 7th St NWCass Lake, MN 56633
Group practices
Medicare enrollment lists I-Wen Tseng as a member of this group (CMS data updated 2026-10-02).
- Department of Health and Human Services PHS IHS20 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376613323 |
| 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