Quick answers
- Which hospitals does John P. Tomashek work at?
- Medicare's official clinician data lists John P. Tomashek at 5 hospitals: Ascension All Saints Hospital, Ascension Columbia St Marys Hospital Milwaukee, Ascension SE Wisconsin Hospital, Ascension St Francis Hospital and Orthopaedic Hospital of Wisconsin. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John P. Tomashek see patients?
- Medicare's clinician data lists 20 practice locations, including Franklin, WI, Mount Pleasant, WI and Wauwatosa, WI. Call before your visit to confirm the address.
- What is John P. Tomashek's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does John P. Tomashek accept Medicare assignment?
- Yes. Medicare's clinician data says John P. Tomashek 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 John P. Tomashek?
- (414) 325-4700, as listed in official Medicare / NPI Registry data.
- What is John P. Tomashek's NPI number?
- 1013999564. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John P. Tomashek works
Medicare's Facility Affiliation Data lists John P. Tomashek at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension All Saints HospitalRacine, WI · Acute Care Hospital · CCN 520096
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · CCN 520051
- Ascension SE Wisconsin HospitalMilwaukee, WI · Acute Care Hospital · CCN 520136
- Ascension St Francis HospitalMilwaukee, WI · Acute Care Hospital · CCN 520078
- Orthopaedic Hospital of WisconsinGlendale, WI · Acute Care Hospital · CCN 520194
Practice locations
Addresses where John P. Tomashek is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 20; the Medicare profile lists all.
- 10101 S 27th StFranklin, WI 53132 (414) 325‑4700
- 10180 Washington AveMount Pleasant, WI 53177 (414) 973‑7830
- 10950 W Capitol DrWauwatosa, WI 53222 (414) 464‑4460
- 12831 N Port Washington RdMequon, WI 53097 (414) 973‑7844
- 13111 N Port Washington RdMequon, WI 53097 (262) 243‑7300
Group practices
Medicare enrollment lists John P. Tomashek as a member of this group (CMS data updated 2026-10-02).
- Premier Radiology Wisconsin LLC106 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Franklin
Clinicians with the same Medicare primary specialty in Franklin, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013999564 |
| 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