Katharine M. Ciesielski, MD

Hospitals where Katharine M. Ciesielski works

Medicare's Facility Affiliation Data lists Katharine M. Ciesielski 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.

• Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625

Practice locations

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

• 444 S San Vicente BlvdLos Angeles, CA 90048 (310) 423‑5000
• 450 N Roxbury Dr, Suite 600Beverly Hills, CA 90210 (310) 651‑2280

Group practices

Medicare enrollment lists Katharine M. Ciesielski as a member of these groups (CMS data updated October 2, 2026).

• Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
• Cedars-Sinai Medical Center799 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Los Angeles

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

• John Williams Iii, MD
• Quy T. Nguyen, MD
• Adel F. Samaan, MD
• Erin M. Meschter, MD
• Ludmila B. Bess, MD
• Seth Kivnick, MD
• Joanne M. Pace, MD
• Michael W. Weinberger, MD

All OB-GYNs in Los Angeles →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

• David Kayne, MD
• Mohammadreza Rostami, MD
• Steven D. Frankel, MD
• Mariam Torossian, MD
• Mahtab Sohrevardi, MD
• Robert Mocharla, 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