Donald S. Mayekawa, MD

Medicare activity in 2024

Official CMS public-use data for Donald S. Mayekawa, 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. X-ray of chest, 1 view (71045)1,260 services
2. Ct scan head or brain without contrast (70450)352 services
3. Ultrasound study of arm or leg veins with compression and maneuvers (93970)345 services
4. Ct scan of abdomen and pelvis without contrast (74176)178 services
5. X-ray of abdomen, 1 view (74018)95 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%
• Arthritis65%
• Diabetes53%
• Ischemic heart disease47%
• Heart failure46%

Hospitals where Donald S. Mayekawa works

Medicare's Facility Affiliation Data lists Donald S. Mayekawa 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.

• Cedar-Sinai Marina del Rey HospitalMarina del Rey, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050740
• Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625
• Centinela Hospital Medical CenterInglewood, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050739
• Saint John's Health CenterSanta Monica, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050290

Practice locations

Addresses where Donald S. Mayekawa is enrolled with Medicare (CMS data updated October 2, 2026).

• 222 E Main St, Suite 213 214Barstow, CA 92311 (780) 242‑4444
• 4650 Lincoln BlvdMarina Del Rey, CA 90292 (310) 823‑8911
• 555 E Hardy StInglewood, CA 90301 (310) 673‑4660
• 8263 Grove Ave, Suite 102Rancho Cucamonga, CA 91730 (909) 982‑8638

Group practices

Medicare enrollment lists Donald S. Mayekawa as a member of these groups (CMS data updated October 2, 2026).

• Beverly Radiology Medical Group III328 clinicians in the group
• Centinela Radiology Medical Group9 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in Barstow

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

• Aaron J. Schein, MD
• Randall L. Baldassarre, MD
• Lawrence C. Wei, MD
• John B. Braunstein, MD
• Dwight K. Lee, MD
• Kaleigh M. Ritchie, DO
• Marshall E. Bein, MD
• Bryan L. Winkler, MD

All radiologists in Barstow →

Other clinicians in Beverly Radiology Medical Group III

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

• William P. Mansfield, MD
• Aaron J. Schein, MD
• Naser Rahbar, MD
• Paul K. Tung, DO
• Julie K. Sun, MD
• Donald E. Decker, 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