Quick answers
- Which hospitals does Gary Dier work at?
- Medicare's official clinician data lists Gary Dier at 5 hospitals: Ascension NE Wisconsin - St Elizabeth Campus, SSM Health St Agnes Hospital-Fond Du Lac, Thedacare Regional Med Ctr - Neenah, Thedacare Regional Medical Center - Appleton Inc and Waupun Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gary Dier see patients?
- Medicare's clinician data lists 1 practice location in Woodruff, WI. Call before your visit to confirm the address.
- What is Gary Dier's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Gary Dier accept Medicare assignment?
- Yes. Medicare's clinician data says Gary Dier 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 Gary Dier?
- (614) 340-7740, as listed in official Medicare / NPI Registry data.
- What is Gary Dier's NPI number?
- 1518966118. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gary Dier works
Medicare's Facility Affiliation Data lists Gary Dier at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension NE Wisconsin - St Elizabeth CampusAppleton, WI · Acute Care Hospital · CCN 520009
- SSM Health St Agnes Hospital-Fond Du LacFond Du Lac, WI · Acute Care Hospital · CCN 520088
- Thedacare Regional Med Ctr - NeenahNeenah, WI · Acute Care Hospital · CCN 520045
- Thedacare Regional Medical Center - Appleton IncAppleton, WI · Acute Care Hospital · CCN 520160
- Waupun Memorial HospitalWaupun, WI · Critical Access Hospital · CCN 521327
Practice locations
Addresses where Gary Dier is enrolled with Medicare (CMS data updated 2026-10-02).
- 7770 S Cross Cut TrailWoodruff, WI 54568 (614) 340‑7740
Group practices
Medicare enrollment lists Gary Dier as a member of this group (CMS data updated 2026-10-02).
- Radiology Associates of the Fox Valley SC81 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Maryland School Of Medicine |
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518966118 |
| 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