Stephanie Y. Chiu, MD

Medicare activity in 2024

Official CMS public-use data for Stephanie Y. Chiu, 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)10,316 services
2. Ct scan of chest without contrast (71250)124 services
3. X-ray of chest, 2 views (71046)81 services
4. Ct scan of abdomen and pelvis without contrast (74176)47 services
5. Ct scan of abdomen and pelvis before and after contrast (74178)45 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%
• Arthritis58%
• Diabetes39%
• Ischemic heart disease36%
• COPD31%

Practice locations

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

• 222 E Main St, Suite 213 214Barstow, CA 92311 (780) 242‑4444
• 2301 Bahamas DrBakersfield, CA 93309 (661) 326‑9600
• 2336 Santa Monica Blvd, Suite 206Santa Monica, CA 90404 (310) 315‑1000
• 2428 Santa Monica Blvd, Suite 100Santa Monica, CA 90404 (310) 582‑7900
• 35800 Bob Hope Dr, Suite 150bRancho Mirage, CA 92270 (760) 318‑2988

Group practices

Medicare enrollment lists Stephanie Y. Chiu as a member of these groups (CMS data updated October 2, 2026).

• Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
• Beverly Radiology Medical Group III328 clinicians in the group
• Desert Advanced Imaging Medical Center208 clinicians in the group
• Fresno Imaging Center133 clinicians in the group
• Kern Radiology Medical Group Inc100 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.

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

All radiologists in Barstow →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

• Milton F. Shapiro, MD
• Tawney Freeman, PA
• Daron H. Dulgarian, MD
• Stephanie A. Lee-Felker, MD
• Britt Malatskey, MD
• Nina Babaian, 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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
4. Medicare Care Compare — official Medicare tool to look up clinicians