Tengis R. Riznis, MD

Hospitals where Tengis R. Riznis works

Medicare's Facility Affiliation Data lists Tengis R. Riznis 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.

• Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050603
• Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050567

Group practices

Medicare enrollment lists Tengis R. Riznis as a member of this group (CMS data updated October 2, 2026).

• Healthcare Partners Affiliates Medical Group754 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Mission Viejo

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

• Daljeet Singh, MD
• Nishchal Kumar, MD
• Matthew A. Zeller, DO
• Quoc B. Ta, MD
• Camellia Shoapour, MD
• Stefanie J. Fightlin, DO
• Konstantinos Melahoures, MD
• J M. Galbraith, MD

All family doctors in Mission Viejo →

Other clinicians in Healthcare Partners Affiliates Medical Group

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

• Megan Gonzalez, MD
• Tatiana V. Sams, MD
• Priya Sharma, MD
• Jaraad B. Huq, DO
• Arnab Ganguly, MD
• Manwinder Kaur, 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