Alexis K. Kahanu Leung, MD

Medicare activity in 2024

Official CMS public-use data for Alexis K. Kahanu Leung, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Emergency department visit with high level of medical decision making (99285)367 services
2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)290 services
3. Emergency department visit with moderate level of medical decision making (99284)102 services
4. Critical care, first 30-74 minutes (99291)34 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis44%
• Ischemic heart disease42%
• Diabetes40%
• Heart failure37%

Hospitals where Alexis K. Kahanu Leung works

Medicare's Facility Affiliation Data lists Alexis K. Kahanu Leung 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.

• Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380

Practice locations

Addresses where Alexis K. Kahanu Leung is enrolled with Medicare (CMS data updated October 2, 2026).

• 24451 Health Ctr DrLaguna Hills, CA 92653 (949) 837‑4500
• 2580 W El Camino Real, Suite 6Mountain View, CA 94040 (650) 540‑8851

Group practices

Medicare enrollment lists Alexis K. Kahanu Leung as a member of these groups (CMS data updated October 2, 2026).

• Cep America - California1,292 clinicians in the group
• Carbon Health Medical Group of California PC334 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Laguna Hills

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

• Gregory G. Simsarian, MD
• Dania A. Youssef, DO
• George D. Hsieh, MD
• Nahal Nikroo, MD
• Erica L. Bailey, MD

All emergency medicine doctors in Laguna Hills →

Other clinicians in Cep America - California

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

• Daniel A. Khushigian, DO
• Alexander M. Guendel, MD
• Alistaire S. Sarradet, DO
• Mackenzie L. Barton, DO
• Matthias Barden, MD
• Jon R. Haynes, 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. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians