Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Hand Surgery

Benjamin S. Zellner, MD

Works at hospitals in Appleton, WI · Sturgeon Bay, WI · Green Bay, WI … · Wisconsin, Michigan

Summary

Benjamin S. Zellner, MD (Hand Surgery) is listed by Medicare at 4 hospitals in Appleton, WI, Sturgeon Bay, WI and Green Bay, WI and other places. NPI 1265752877. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Benjamin S. Zellner, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Hand SurgeryPrimary specialty
YesAccepts Medicare assignment
16Years since medical school (graduated 2010)
University Of Wisconsin School Of MedicineMedical school
MaleGender (as listed)
Orthopedic and Sports Medicine Specialists of Green Bay, SCGroup practice

Quick answers

Which hospitals does Benjamin S. Zellner work at?
Medicare's official clinician data lists Benjamin S. Zellner at 4 hospitals: Ascension NE Wisconsin - St Elizabeth Campus, Door County Medical Center, St Marys Hospital Medical Center and Uphs Marquette DLP Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Benjamin S. Zellner see patients?
Medicare's clinician data lists 1 practice location in Green Bay, WI. Call before your visit to confirm the address.
What is Benjamin S. Zellner's specialty?
Medicare lists Hand Surgery as the primary specialty.
Does Benjamin S. Zellner accept Medicare assignment?
Yes. Medicare's clinician data says Benjamin S. Zellner 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 the phone number for Benjamin S. Zellner?
(920) 430-8113, as listed in official Medicare / NPI Registry data.
What is Benjamin S. Zellner's NPI number?
1265752877. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Benjamin S. Zellner works

Medicare's Facility Affiliation Data lists Benjamin S. Zellner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Benjamin S. Zellner is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Benjamin S. Zellner as a member of this group (CMS data updated 2026-10-02).

  • Orthopedic and Sports Medicine Specialists of Green Bay, SC50 clinicians in the group

Specialties

Find other Hand Surgery doctors in Wisconsin →

Other hand surgeons in Green Bay

Clinicians with the same Medicare primary specialty in Green Bay, WI — not a recommendation.

All hand surgeons in Green Bay →

Clinician information

CredentialMD
Medical schoolUniversity Of Wisconsin School Of Medicine
Graduation year2010
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265752877
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians