Jiayang Xiao, MD

Medicare activity in 2024

Official CMS public-use data for Jiayang Xiao, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)51 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)22 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)16 services
4. Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)11 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 cholesterol75%
• High blood pressure70%
• Arthritis49%
• Chronic kidney disease28%
• Diabetes27%
• Osteoporosis20%

Hospitals where Jiayang Xiao works

Medicare's Facility Affiliation Data lists Jiayang Xiao 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.

• Providence St. Jude Medical CenterFullerton, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050168

Practice locations

Addresses where Jiayang Xiao is enrolled with Medicare (CMS data updated October 2, 2026).

• 12214 Lakewood Blvd, Suite 110Downey, CA 90242 (562) 904‑4430
• 12400 Bloomfield AveSanta Fe Springs, CA 90670 (562) 967‑2820
• 12675 La Mirada Blvd, Suite 201and401La Mirada, CA 90638 (562) 903‑7339
• 5630 E Santa Ana Canyon RdAnaheim, CA 92807 (714) 602‑2400

Group practices

Medicare enrollment lists Jiayang Xiao as a member of these groups (CMS data updated October 2, 2026).

• Providence Medical Foundation1,466 clinicians in the group
• PIH Health Physicians622 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Downey

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

• Pamela Vila, DO
• Gudars M. Rahnema, DO
• Daniel H. Brown, MD
• Joseph A. Kwee, MD
• Sahir M. Gharib, MD
• Robert J. Wielenga, MD
• Martin T. Sechrist, DO
• Vu D. Tran, MD

All family doctors in Downey →

Other clinicians in Providence Medical Foundation

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

• Steven J. Korenstein, MD
• Thomas S. Bailey Jr., MD
• Doan H. Pham, PA
• Madeleine S. Ramos, MD
• Maria L. Savitt, MD
• Bradley Borsari, 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