Anna Maria V. Sapugay, MD

Medicare activity in 2024

Official CMS public-use data for Anna Maria V. Sapugay, 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)3,800 services
2. X-ray of chest, 2 views (71046)290 services
3. Screening mammography (77067)245 services
4. Screening 3d breast mammography (77063)210 services
5. X-ray of knee, 4 or more views (73564)159 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 cholesterol73%
• High blood pressure70%
• Arthritis47%
• Diabetes35%
• Chronic kidney disease26%
• Anxiety21%

Hospitals where Anna Maria V. Sapugay works

Medicare's Facility Affiliation Data lists Anna Maria V. Sapugay 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
• California Pacific Medical Center-Davies Campus HospitalSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050008
• 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 Anna Maria V. Sapugay is enrolled with Medicare (CMS data updated October 2, 2026).

• 20101 Lake Chabot Rd, Fl 4Castro Valley, CA 94546 (510) 886‑3400

Group practices

Medicare enrollment lists Anna Maria V. Sapugay as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Castro Valley

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

• Garima Loharuka, DO
• Alexandria C. Kragie, MD
• Setareh Hafezi, MD
• Deepti Gupta, MD
• Ricci Regina R. Sylla
• Tien M. Le, DO
• Sonia L. Badheka, DO
• Mahkam Tavallaee, MD

All OB-GYNs in Castro Valley →

Other clinicians in Sutter Bay Medical Foundation

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

• Ira C. Chan, MD
• Wanda Hu, MD
• Debra Wang, MD
• Muong C. Saeteurn, CSW
• Jannell F. Henderson, MD
• Al V. Taira, 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