Kaitlyn M. Fruin, MD

Hospitals where Kaitlyn M. Fruin works

Medicare's Facility Affiliation Data lists Kaitlyn M. Fruin 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.

• Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050262
• Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050112

Practice locations

Addresses where Kaitlyn M. Fruin is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 100 Moody Ct, Suite 200Thousand Oaks, CA 91360 (805) 418‑3500
• 1245 16th StSanta Monica, CA 90404
• 1304 15th St, Suite 102Santa Monica, CA 90404 (310) 319‑4080
• 2020 Santa Monica Blvd, Suite 210Santa Monica, CA 90404 (310) 458‑2381
• 248 Hampshire Rd, Suite 100Thousand Oaks, CA 91361 (805) 370‑0040

Group practices

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

• The Regents of the University of California1,462 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Thousand Oaks

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

• Sagar P. Parekh, DO
• Lauren H. Beshay, MD
• Jose-Nitram P. Aliling, MD
• Peter I. Margolis, MD
• Mercedes Ann T. De Las Alas, MD
• Nithyalakshimi Nambiar, MD
• Zoya Furman, MD
• Siamak Basiratmand, MD

All internal medicine doctors in Thousand Oaks →

Other clinicians in The Regents of the University of California

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

• Katherine M. Cohen, NP
• Phillip F. Yadegari, MD
• James S. Lee, MD
• Jenny J. Kim, MD
• Nisha V. Sunku, MD
• Benjamin Noble, DO

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