Quick answers
- Which hospitals does Nicholas E. Graunke work at?
- Medicare's official clinician data lists Nicholas E. Graunke at 2 hospitals: Ascension Columbia St Marys Hospital Milwaukee and Froedtert Memorial Lutheran Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nicholas E. Graunke see patients?
- Medicare's clinician data lists 14 practice locations, including Mequon, WI, Milwaukee, WI and New Berlin, WI. Call before your visit to confirm the address.
- What is Nicholas E. Graunke's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Nicholas E. Graunke accept Medicare assignment?
- Yes. Medicare's clinician data says Nicholas E. Graunke 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 Nicholas E. Graunke?
- (262) 243-7300, as listed in official Medicare / NPI Registry data.
- What is Nicholas E. Graunke's NPI number?
- 1386277838. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicholas E. Graunke works
Medicare's Facility Affiliation Data lists Nicholas E. Graunke at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Columbia St Marys Hospital MilwaukeeMilwaukee, WI · Acute Care Hospital · CCN 520051
- Froedtert Memorial Lutheran HospitalMilwaukee, WI · Acute Care Hospital · CCN 520177
Practice locations
Addresses where Nicholas E. Graunke is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 14; the Medicare profile lists all.
- 13111 N Port Washington RdMequon, WI 53097 (262) 243‑7300
- 13133 N Port Washington Rd, Suite G06Mequon, WI 53097 (262) 243‑8371
- 2301 N Lake DrMilwaukee, WI 53211
- 2323 N Lake DrMilwaukee, WI 53211 (414) 585‑1000
- 2350 N Lake DrMilwaukee, WI 53211
Group practices
Medicare enrollment lists Nicholas E. Graunke as a member of these groups (CMS data updated 2026-10-02).
- The Medical College of Wisconsin Inc2,115 clinicians in the group
- Froedtert Andthe Medical College of Wisconsin Community Physicians Inc1,285 clinicians in the group
- Columbia St Marys Hospital Milwaukee Inc306 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Mequon
Clinicians with the same Medicare primary specialty in Mequon, WI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386277838 |
| 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