Quick answers
- Does Annie Shergill accept Medicare assignment?
- Yes. Medicare's clinician data says Annie Shergill accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Annie Shergill's NPI number?
- 1609257153. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Annie Shergill works
Medicare's Facility Affiliation Data lists Annie Shergill at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Aurora St Lukes Medical CenterMilwaukee, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520138
- St Joseph's Medical Center of StocktonStockton, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050084
Practice locations
Addresses where Annie Shergill is enrolled with Medicare (CMS data updated October 2, 2026).
- 2424 S 90th St, Suite 410West Allis, WI 53227 (414) 908‑6500
- 2801 W Kinnickinnic River Pkwy, Suite 1080Milwaukee, WI 53215 (414) 908‑6500
- 782 E Harding WayStockton, CA 95204 (209) 546‑5200
Group practices
Medicare enrollment lists Annie Shergill as a member of these groups (CMS data updated October 2, 2026).
- Dignity Health Medical Foundation1,184 clinicians in the group
- Gi Associates LLC55 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Wisconsin
Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.
Other clinicians in Dignity Health Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609257153 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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