Quick answers
- Which hospitals does Spencer Gantz work at?
- Medicare's official clinician data lists Spencer Gantz at 2 hospitals: Thedacare Regional Medical Center - Appleton Inc and Thedacare Regional Medical Center - Neenah. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Spencer Gantz see patients?
- Medicare's clinician data lists 1 practice location in Appleton, WI. Call before your visit to confirm the address.
- What is Spencer Gantz's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Spencer Gantz accept Medicare assignment?
- Yes. Medicare's clinician data says Spencer Gantz 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 Spencer Gantz?
- (920) 749-4000, as listed in official Medicare / NPI Registry data.
- What is Spencer Gantz's NPI number?
- 1639600547. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Spencer Gantz works
Medicare's Facility Affiliation Data lists Spencer Gantz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Thedacare Regional Medical Center - Appleton IncAppleton, WI · Acute Care Hospital · CCN 520160
- Thedacare Regional Medical Center - NeenahNeenah, WI · Acute Care Hospital · CCN 520045
Practice locations
Addresses where Spencer Gantz is enrolled with Medicare (CMS data updated 2026-10-02).
- 1818 N Meade StAppleton, WI 54911 (920) 749‑4000
Group practices
Medicare enrollment lists Spencer Gantz as a member of this group (CMS data updated 2026-10-02).
- Womens Health Specialists SC27 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Appleton
Clinicians with the same Medicare primary specialty in Appleton, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639600547 |
| 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