Quick answers
- Which hospitals does James D. Larson work at?
- Medicare's official clinician data lists James D. Larson at 1 hospital: Aurora Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James D. Larson see patients?
- Medicare's clinician data lists 3 practice locations, including Mequon, WI, Port Washington, WI and Milwaukee, WI. Call before your visit to confirm the address.
- What is James D. Larson's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does James D. Larson accept Medicare assignment?
- Yes. Medicare's clinician data says James D. Larson 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 James D. Larson?
- (262) 268-5100, as listed in official Medicare / NPI Registry data.
- What is James D. Larson's NPI number?
- 1164632410. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James D. Larson works
Medicare's Facility Affiliation Data lists James D. Larson 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
Practice locations
Addresses where James D. Larson is enrolled with Medicare (CMS data updated 2026-10-02).
- 12203 N Corporate PkwyMequon, WI 53092
- 1475 W Grand AvePort Washington, WI 53074 (262) 268‑5100
- 3003 W Good Hope RdMilwaukee, WI 53209 (414) 352‑3100
Group practices
Medicare enrollment lists James D. Larson as a member of this group (CMS data updated 2026-10-02).
- Aurora Advanced Healthcare, Inc.1,124 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Mequon
Clinicians with the same Medicare primary specialty in Mequon, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164632410 |
| 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