Ravi K. Aggu Sher, MD

Medicare activity in 2024

Official CMS public-use data for Ravi K. Aggu Sher, 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. Critical care, first 30-74 minutes (99291)341 services
2. Critical care, each additional 30 minutes (99292)46 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)35 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)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%
• Diabetes60%
• Ischemic heart disease60%
• Chronic kidney disease58%
• Heart failure51%

Hospitals where Ravi K. Aggu Sher works

Medicare's Facility Affiliation Data lists Ravi K. Aggu Sher 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.

• Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380
• Washington HospitalFremont, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050195

Practice locations

Addresses where Ravi K. Aggu Sher is enrolled with Medicare (CMS data updated October 2, 2026).

• 2000 Mowry AveFremont, CA 94538 (510) 248‑1000
• 2425 Samaritan DrSan Jose, CA 95124 (888) 924‑1036
• 50 E Hamilton Ave, Suite 280Campbell, CA 95008 (408) 227‑2646
• 700 Lawrence ExpySanta Clara, CA 95051 (408) 851‑1000

Group practices

Medicare enrollment lists Ravi K. Aggu Sher as a member of these groups (CMS data updated October 2, 2026).

• Permanente Medical Group Inc10,996 clinicians in the group
• University Healthcare Alliance327 clinicians in the group
• Washington Township Medical Foundation117 clinicians in the group

Specialties

• Critical Care (Intensivists)primary
• Internal Medicinealso

Find other Critical Care (Intensivists) doctors in California →

Other critical care doctors in Fremont

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

• Rohit Arora, MD
• John J. Redinski, DO
• Carmencita A. Agcaoili, MD
• Wendy W. Hsu, MD
• Cyrus Shariat, MD
• Doan Luu, MD
• Leena S. Jalota, MD
• Candy F. Wong, MD

All critical care doctors in Fremont →

Other clinicians in Permanente Medical Group Inc

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

• Aiying A. Xiao, MD
• Lester G. Reffigee, MD
• Peter R. Knudsen, MD
• Lynda X. Yu, MD
• Daniel Taylor, DO
• Nhi Vo, 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