Gretchen Nonawzki, DO

Hospitals where Gretchen Nonawzki works

Medicare's Facility Affiliation Data lists Gretchen Nonawzki 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.

• Kaiser Foundation Hospital - RosevilleRoseville, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050772
• Kaiser Foundation Hospital - SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050425

Practice locations

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

• 2025 Morse AveSacramento, CA 95825 (916) 973‑5000

Group practices

Medicare enrollment lists Gretchen Nonawzki as a member of this group (CMS data updated October 2, 2026).

• Permanente Medical Group Inc10,996 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Sacramento

Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.

• Tamara S. Heibult, MD
• Jessica H. Derkacs, MD
• Trevor S. Cadogan, MD
• Abhinav Chandra, MD
• Brandon C. Phong, MD
• Josephine Livingston, MD
• John P. Lemos, MD
• Ellen M. Shank, MD

All emergency medicine doctors in Sacramento →

Other clinicians in Permanente Medical Group Inc

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

• Jeffrey S. Margolis, MD
• Lisa Deangelis, MD
• Quan A. Ta, MD
• Estelle S. Lin, MD
• Priti P. Dahya, MD
• Faezeh M. Ghaffari, MD

Clinician information

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