Stephanie M. Wong, MD

Medicare activity in 2024

Official CMS public-use data for Stephanie M. Wong, 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)546 services
2. Hospital discharge day management, more than 30 minutes (99239)129 services
3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)55 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)37 services
5. Advance care planning, first 30 minutes (99497)23 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%
• Chronic kidney disease57%
• Heart failure53%
• Diabetes49%
• Arthritis45%

Hospitals where Stephanie M. Wong works

Medicare's Facility Affiliation Data lists Stephanie M. Wong 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.

• Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050043
• Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050305
• Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007

Practice locations

Addresses where Stephanie M. Wong is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

• 123 S San Mateo DrSan Mateo, CA 94401 (650) 343‑4200
• 1501 Trousdale DrBurlingame, CA 94010 (650) 696‑3520
• 1501 Trousdale Dr, Suite 215Burlingame, CA 94010 (415) 600‑6400
• 2450 Ashby AveBerkeley, CA 94705
• 2450 Ashby Ave, Rm 5505Berkeley, CA 94705 (510) 204‑4444

Group practices

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

• Sutter Bay Medical Foundation3,829 clinicians in the group
• Peninsula Hospitalist Associates Inc41 clinicians in the group

Specialties

• Hospitalistprimary
• Internal Medicinealso

Find other Hospitalist doctors in California →

Other hospitalists in San Mateo

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

• Tuan M. Dang, DO
• Taha Jabbar, MD
• Hamza Abbasi, MD
• Abren Belay, MD
• Anjali Thakkar, MD
• Humayun Tufail, MD
• Wutt Y. Linn, MD

All hospitalists in San Mateo →

Other clinicians in Sutter Bay Medical Foundation

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

• Brianna D. Cheeks, PA
• Katharine L. Ball, MD
• Christopher M. Kolly, DO
• Steven R. Lane, MD
• Ghislaine Vandissel, DO
• Anh-Quan Nguyen, 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