Raymond Ryan N. Ruiz, MD

Medicare activity in 2024

Official CMS public-use data for Raymond Ryan N. Ruiz, 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. Critical care, first 30-74 minutes (99291)199 services
2. Emergency department visit with high level of medical decision making (99285)179 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)90 services
4. Emergency department visit with moderate level of medical decision making (99284)35 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%
• Diabetes64%
• Arthritis57%
• Ischemic heart disease46%
• Chronic kidney disease45%

Hospitals where Raymond Ryan N. Ruiz works

Medicare's Facility Affiliation Data lists Raymond Ryan N. Ruiz 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.

• AHMC Anaheim Regional Medical CenterAnaheim, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050226
• Glendale Memorial Hospital & Health CenterGlendale, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050058
• Mission Community HospitalPanorama City, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050704
• Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050116
• PIH Health Good Samaritan HospitalLos Angeles, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050471

Practice locations

Addresses where Raymond Ryan N. Ruiz is enrolled with Medicare (CMS data updated October 2, 2026).

• 1111 W La Palma AveAnaheim, CA 92801 (951) 898‑0823
• 1225 Wilshire BlvdLos Angeles, CA 90017 (213) 977‑2420
• 18300 Roscoe BlvdNorthridge, CA 91325 (818) 885‑5396

Group practices

Medicare enrollment lists Raymond Ryan N. Ruiz as a member of these groups (CMS data updated October 2, 2026).

• Can Emergency Physicians Medical Group Inc45 clinicians in the group
• Ridgeline Emergency Physicians Medical Group, Inc.41 clinicians in the group
• Anaheim Emergency Medical Group21 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Anaheim

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

• David H. Whitaker, DO
• Hsu-Hsiang Chang, DO
• Richard A. Washofsky, MD
• Jessica A. Rendin, MD
• Jonathan J. Sorci, MD
• Jennifer Stever, DO
• Tuan A. Nguyen, DO
• Dwight C. Arakaki, MD

All emergency medicine doctors in Anaheim →

Other clinicians in Can Emergency Physicians Medical Group Inc

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

• Vladimir Ayvazyan, MD
• Jose Suson, NP
• Alan N. Rojas, MD
• Frank Fower, MD
• Hrak Derderian, MD
• Assibi Abudu, 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