Diana C. Wu, MD

Medicare activity in 2024

Official CMS public-use data for Diana C. Wu, 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. Electrocardiogram (ecg) 1 to 3 leads with review by physician (93040)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%

Hospitals where Diana C. Wu works

Medicare's Facility Affiliation Data lists Diana C. Wu 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
• Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488

Practice locations

Addresses where Diana C. Wu is enrolled with Medicare (CMS data updated October 2, 2026).

• 1357 Oakland CtWalnut Creek, CA 94596 (925) 676‑0505
• 818 Webster StOakland, CA 94607 (510) 986‑6800

Group practices

Medicare enrollment lists Diana C. Wu as a member of these groups (CMS data updated October 2, 2026).

• Asian Health Services94 clinicians in the group
• Planned Parenthood Shasta Diablo Inc6 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Walnut Creek

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

• James Z. Liang, DO
• Thearith Seng, MD
• Maryam B. Safa, MD
• Sherille Sevilla, DO
• Trevor N. Brodsky-Brooks, MD
• Nazira Mojadidi, MD
• Cynthia J. Savage, MD
• Ramon Ryan Garcia, MD

All family doctors in Walnut Creek →

Other clinicians in Asian Health Services

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

• Eliza M. Chan
• Clara Chen, MD
• Christina P. Ng
• Annie N. Le, NP
• Mei Chow Kwan, MD
• Paula S. Ong, PA

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