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Gastroenterology

Annie Shergill, MD

Works at hospitals in Milwaukee, WI · Stockton, CA · Wisconsin, California

Summary

Dr. Annie Shergill, MD is a gastroenterologist at 2424 S 90th St, Suite 410, West Allis, WI 53227. Phone: (414) 908-6500. Accepts Medicare assignment. NPI 1609257153. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Annie Shergill, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

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.

Practice locations

Addresses where Annie Shergill is enrolled with Medicare (CMS data updated October 2, 2026).

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

Find other Gastroenterology doctors in Wisconsin →

Other gastroenterologists in Wisconsin

Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.

All gastroenterologists in Wisconsin →

Other clinicians in Dignity Health Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609257153
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians