Nilo O. Arnaiz, MD

Hospitals where Nilo O. Arnaiz works

Medicare's Facility Affiliation Data lists Nilo O. Arnaiz 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.

• Kaiser Foundation Hospital - Orange County - AnaheimAnaheim, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050609

Practice locations

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

• 3430 E La Palma AveAnaheim, CA 92806 (888) 988‑2800
• 3460 E La Palma AveAnaheim, CA 92806 (714) 644‑2010
• 5475 E La Palma AveAnaheim, CA 92807 (714) 279‑6088
• 6640 Alton PkwyIrvine, CA 92618 (949) 932‑5000
• 6650 Alton PkwyIrvine, CA 92618 (949) 932‑5000

Group practices

Medicare enrollment lists Nilo O. Arnaiz as a member of this group (CMS data updated October 2, 2026).

• Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

• Pulmonary Diseaseprimary
• Critical Care (Intensivists)also

Find other Pulmonary Disease doctors in California →

Other pulmonologists in Anaheim

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

• George Yuen, MD
• Anooshiravan Hami, MD
• Johnny H. Ju, MD
• Tammy H. Le, MD
• Joon H. Kim, MD
• George M. Girgis, MD
• Ahmed E. Badr, MD
• Roberto L. Mempin, MD

All pulmonologists in Anaheim →

Other clinicians in Southern California Permanente Medical Group

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

• Lisa M. Heindl, MD
• Ethan B. Rand, MD
• Dhaval Trivedi, MD
• Jonathan Y. Lyu, DO
• Tucker V. Burr, MD
• Syed A. Hasan, 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