Quick answers
- Which hospitals does Mark D. Rhyner work at?
- Medicare's official clinician data lists Mark D. Rhyner at 1 hospital: Froedtert Memorial Lutheran Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Rhyner see patients?
- Medicare's clinician data lists 1 practice location in Germantown, WI. Call before your visit to confirm the address.
- What is Mark D. Rhyner's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Mark D. Rhyner accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Rhyner 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.
- Does Mark D. Rhyner offer telehealth?
- Medicare's clinician data says Mark D. Rhyner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark D. Rhyner?
- (262) 253-5060, as listed in official Medicare / NPI Registry data.
- What is Mark D. Rhyner's NPI number?
- 1679668750. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark D. Rhyner works
Medicare's Facility Affiliation Data lists Mark D. Rhyner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Froedtert Memorial Lutheran HospitalMilwaukee, WI · Acute Care Hospital · CCN 520177
Practice locations
Addresses where Mark D. Rhyner is enrolled with Medicare (CMS data updated 2026-10-02).
- W168n11237 Western AveGermantown, WI 53022 (262) 253‑5060
Group practices
Medicare enrollment lists Mark D. Rhyner as a member of this group (CMS data updated 2026-10-02).
- Froedtert Andthe Medical College of Wisconsin Community Physicians Inc1,285 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Germantown
Clinicians with the same Medicare primary specialty in Germantown, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1679668750 |
| 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