Ivan C. Namihas Jr., MD

Medicare activity in 2024

Official CMS public-use data for Ivan C. Namihas Jr., 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. Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (G6002)911 services
2. Design and construction of complex radiation treatment device (77334)427 services
3. Radiation treatment management, 5 treatment sessions (77427)312 services
4. Calculation of radiation therapy dose (77300)228 services
5. Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved (77290)129 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).

• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High cholesterol70%
• High blood pressure67%
• Arthritis32%
• Diabetes31%
• Ischemic heart disease24%

Hospitals where Ivan C. Namihas Jr. works

Medicare's Facility Affiliation Data lists Ivan C. Namihas Jr. 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.

• Loma Linda University Medical CenterLoma Linda, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050327

Practice locations

Addresses where Ivan C. Namihas Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

• 11234 Anderson StLoma Linda, CA 92350 (909) 558‑2824
• 11234 Anderson StLoma Linda, CA 92354
• 11370 Anderson StLoma Linda, CA 92354
• 81 Highland Springs AveBeaumont, CA 92223 (909) 558‑4000
• File Number, Suite 54701Los Angeles, CA 90074

Group practices

Medicare enrollment lists Ivan C. Namihas Jr. as a member of this group (CMS data updated October 2, 2026).

• Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group

Specialties

• Radiation Oncologyprimary

Find other Radiation Oncology doctors in California →

Other radiation oncologists in Loma Linda

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

• Gary Y. Yang, MD
• Jason Slater, MD
• Peter Zaki, MD
• Lilia N. Loredo, MD
• Jerry D. Slater, MD
• Stephanie Y. Kwan, MD
• David A. Bush, MD
• Jessica Jutzy

All radiation oncologists in Loma Linda →

Other clinicians in Faculty Physicians and Surgeons of Llusm

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

• Kian Mehrazarin, MD
• Ahmed M. Abou-Zamzam, MD
• Sonny C. Lee, MD
• Ronela K. Moldovan, OD
• Thaddeus E. Wilson, MD
• Nicholas C. Kinder, DO

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