Quick answers
- Which hospitals does Zachary McCallips work at?
- Medicare's official clinician data lists Zachary McCallips at 2 hospitals: Aurora Medical Center and Aurora St Lukes Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Zachary McCallips see patients?
- Medicare's clinician data lists 1 practice location in Grafton, WI. Call before your visit to confirm the address.
- What is Zachary McCallips's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Zachary McCallips accept Medicare assignment?
- Yes. Medicare's clinician data says Zachary McCallips 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 Zachary McCallips?
- (262) 329-8650, as listed in official Medicare / NPI Registry data.
- What is Zachary McCallips's NPI number?
- 1811575558. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Zachary McCallips works
Medicare's Facility Affiliation Data lists Zachary McCallips at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Aurora Medical CenterGrafton, WI · Acute Care Hospital · CCN 520207
- Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · CCN 520138
Practice locations
Addresses where Zachary McCallips is enrolled with Medicare (CMS data updated 2026-10-02).
- 975 Port Washington RdGrafton, WI 53024 (262) 329‑8650
Group practices
Medicare enrollment lists Zachary McCallips as a member of this group (CMS data updated 2026-10-02).
- Aurora Medical Group, Inc.3,813 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Grafton
Clinicians with the same Medicare primary specialty in Grafton, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 2021 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811575558 |
| 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