Quick answers
- Does Zachary H. Hollen accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary H. Hollen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Zachary H. Hollen's NPI number?
- 1356021620. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Zachary H. Hollen works
Medicare's Facility Affiliation Data lists Zachary H. Hollen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Essentia Health DuluthDuluth, MN · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 240019
Practice locations
Addresses where Zachary H. Hollen is enrolled with Medicare (CMS data updated October 2, 2026).
- 1101 9th St NVirginia, MN 55792 (218) 741‑0150
- 400 E 3rd StDuluth, MN 55805 (218) 786‑8364
Group practices
Medicare enrollment lists Zachary H. Hollen as a member of this group (CMS data updated October 2, 2026).
- The Duluth Clinic Ltd1,144 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Minnesota
Clinicians with the same Medicare primary specialty in Minnesota — not a recommendation.
Other clinicians in The Duluth Clinic Ltd
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1356021620 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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