Ashley M. Sherfey, DO

Hospitals where Ashley M. Sherfey works

Medicare's Facility Affiliation Data lists Ashley M. Sherfey 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.

• Mercy Medical CenterMerced, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050444
• Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050523

Practice locations

Addresses where Ashley M. Sherfey is enrolled with Medicare (CMS data updated October 2, 2026).

• 1420 N Tracy BlvdTracy, CA 95376 (209) 835‑1500

Group practices

Medicare enrollment lists Ashley M. Sherfey as a member of this group (CMS data updated October 2, 2026).

• Cep America - California1,292 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Tracy

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

• Kanthi Kiran, MD
• Tushar R. Patel, MD
• Luis A. Melendez Serrano, MD
• Jayakala Lakireddy, DO
• Andy K. Su, MD
• Mark J. Loewen, DO
• Steven M. Deford, MD
• Aleq Jaffery, MD

All emergency medicine doctors in Tracy →

Other clinicians in Cep America - California

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

• Matthias Barden, MD
• Josephine Livingston, MD
• Sean Barkan, MD
• Evan Sands, MD
• Brian J. Tanner, MD
• Rodolfo Zaragoza, 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