Karissa N. Britten, MD

Hospitals where Karissa N. Britten works

Medicare's Facility Affiliation Data lists Karissa N. Britten 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
• Huntington HospitalPasadena, CA · Acute Care Hospital · Emergency services: listed by Medicare · CCN 050438

Practice locations

Addresses where Karissa N. Britten is enrolled with Medicare (CMS data updated October 2, 2026).

• 625 S Fair Oaks Ave, Suite 345Pasadena, CA 91105 (424) 314‑0203
• 8700 Beverly BlvdWest Hollywood, CA 90048 (310) 423‑3277
• 9090 Wilshire Blvd, Fl 3Beverly Hills, CA 90211 (310) 888‑8680

Group practices

Medicare enrollment lists Karissa N. Britten 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

• Hematology/Oncologyprimary

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in Pasadena

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

• Jenny Zhou, MD
• Stephen Huang, MD
• Henry Wang, MD
• Tiffany Y. Shaw, MD
• Rahul R. Naik, MD
• Tina Wang, MD
• Weber Chen, MD
• Sunil Tulpule, MD

All hematologist-oncologists in Pasadena →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

• Shilpa Amin, MD
• Avner Gereboff, MD
• Bahar A. Mjos, DO
• Jason B. Aaronson, MD
• Tanya L. Tivorsak, MD
• Serghei Burcovschii, 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