Christina Chou, MD

Medicare activity in 2024

Official CMS public-use data for Christina Chou, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)77 services
2. Measurement of liver stiffness (91200)50 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)40 services
4. Biopsy of large bowel using a flexible endoscope (45380)19 services
5. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)16 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 cholesterol64%
• Diabetes49%
• Chronic kidney disease40%
• Arthritis34%
• Ischemic heart disease26%

Hospitals where Christina Chou works

Medicare's Facility Affiliation Data lists Christina Chou 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.

• Alameda HospitalAlameda, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050211
• Highland HospitalOakland, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050320

Practice locations

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

• 1411 E 31st StOakland, CA 94602 (510) 437‑4800
• 664 Southland MallHayward, CA 94545 (510) 266‑1700

Group practices

Medicare enrollment lists Christina Chou as a member of this group (CMS data updated October 2, 2026).

• Alameda Health System601 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in California →

Other gastroenterologists in Oakland

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

• Susie W. Cohn, MD
• Kimberly Cusato, MD
• Howard Y. Chang, MD
• Mitchell L. Liverant, MD
• Liana Vesga, MD
• Lawrence C. Ku, MD
• Kevin J. Kane, MD
• Yu-Ming Chang, MD

All gastroenterologists in Oakland →

Other clinicians in Alameda Health System

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

• Dustin Wong, DO
• Steven Sackrin, MD
• Robert Dionisio, MD
• Amy E. Herrick, CNA
• Joy C. Liu, MD
• Thomas C. Chen, 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