Stephanie Y. Channual, MD

Medicare activity in 2024

Official CMS public-use data for Stephanie Y. Channual, 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)19 services
2. Ct scan head or brain without contrast (70450)17 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 cholesterol59%
• Diabetes46%
• Chronic kidney disease46%
• Arthritis33%
• Anxiety33%

Hospitals where Stephanie Y. Channual works

Medicare's Facility Affiliation Data lists Stephanie Y. Channual 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 Fontana/OntarioFontana, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050140

Practice locations

Addresses where Stephanie Y. Channual is enrolled with Medicare (CMS data updated October 2, 2026).

• 9333 Imperial HwyDowney, CA 90242 (800) 923‑4040

Group practices

Medicare enrollment lists Stephanie Y. Channual as a member of this group (CMS data updated October 2, 2026).

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

Specialties

• Interventional Radiologyprimary

Find other Interventional Radiology doctors in California →

Other interventional radiologists in Downey

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

• Alexander Cho, MD
• Marwan H. Saab, MD
• Malwinder S. Singha, MD
• Minh-Chau Vu, MD
• Peter P. Lew, MD
• John S. Lee, MD
• Dustin Brown, MD
• Frank C. Soto, MD

All interventional radiologists in Downey →

Other clinicians in Southern California Permanente Medical Group

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

• Kelly E. Goldman, MD
• John K. Su, MD
• Catherine G. Pattengill, MD
• Ishita Sharma, MD
• Justin S. Wu, MD
• Charles W. Chia, 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