Quick answers
- Which hospitals does Mark E. Pearson work at?
- Medicare's official clinician data lists Mark E. Pearson at 1 hospital: Waukesha Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark E. Pearson see patients?
- Medicare's clinician data lists 1 practice location in Waukesha, WI. Call before your visit to confirm the address.
- What is Mark E. Pearson's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Mark E. Pearson accept Medicare assignment?
- Yes. Medicare's clinician data says Mark E. Pearson 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 Mark E. Pearson?
- (262) 785-0777, as listed in official Medicare / NPI Registry data.
- What is Mark E. Pearson's NPI number?
- 1407857048. 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 E. Pearson works
Medicare's Facility Affiliation Data lists Mark E. Pearson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Waukesha Memorial HospitalWaukesha, WI · Acute Care Hospital · CCN 520008
Practice locations
Addresses where Mark E. Pearson is enrolled with Medicare (CMS data updated 2026-10-02).
- 20800 Swenson Dr, Suite 175Waukesha, WI 53186 (262) 785‑0777
Group practices
Medicare enrollment lists Mark E. Pearson as a member of this group (CMS data updated 2026-10-02).
- West Suburban Ctr for Arthritis7 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Waukesha
Clinicians with the same Medicare primary specialty in Waukesha, WI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 1982 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407857048 |
| 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