Gertrude Shiu, MD

Medicare activity in 2024

Official CMS public-use data for Gertrude Shiu, 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 moderate level of decision making, if using time, 30 minutes or more (99214)24 services
2. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)23 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)18 services
4. Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)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).

• Arthritis67%
• High cholesterol57%
• High blood pressure50%
• Anxiety30%
• Osteoporosis28%
• Depression26%

Hospitals where Gertrude Shiu works

Medicare's Facility Affiliation Data lists Gertrude Shiu 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.

• Mercy General HospitalSacramento, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050017
• Methodist Hospital of SacramentoSacramento, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050590

Practice locations

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

• 4400 Duckhorn Dr, Suite 100Sacramento, CA 95834 (916) 575‑8000

Group practices

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

• Dignity Health Medical Foundation1,184 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Sacramento

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

• Hailey R. Macnear, MD
• Elizabeth M. Gonzalez, MD
• Marianne S. Muchura, MD
• Katie Alton, MD
• Sarah G. Kirshner, MD
• Alisha A. Watkins, MD
• Nicole M. Hebert, MD
• Arielle J. Gire-Dumas, MD

All OB-GYNs in Sacramento →

Other clinicians in Dignity Health Medical Foundation

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

• Shaoxing N. Barnes
• Ivonne E. Reyes, NP
• Daniel M. Gensler, NP
• Sufen Chiu, MD
• Tara Sarabakhsh, DO
• Dene Daugherty, 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