Rachel Feder, MD

Medicare activity in 2024

Official CMS public-use data for Rachel Feder, 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. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)63 services
2. Biopsy of large bowel using a flexible endoscope (45380)42 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)39 services
4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)28 services
5. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)28 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 cholesterol64%
• High blood pressure59%
• Arthritis36%
• Diabetes29%
• Osteoporosis26%
• Ischemic heart disease22%

Hospitals where Rachel Feder works

Medicare's Facility Affiliation Data lists Rachel Feder 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.

• Eden Medical CenterCastro Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050488
• Washington HospitalFremont, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050195

Practice locations

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

• 2000 Mowry AveFremont, CA 94538 (510) 797‑7111
• 3200 Kearney StFremont, CA 94538 (510) 490‑1222

Group practices

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

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in California →

Other gastroenterologists in Fremont

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

• Anmol S. Mahal, MD
• Arun Srivatsa, MD
• Zaid Imam, MD
• Ritesh Jha, MD
• Mary Y. Hu, MD
• Saurabh Sethi, MD
• Shakir A. Hyder, MD
• Sharareh Moraveji, MD

All gastroenterologists in Fremont →

Other clinicians in Sutter Bay Medical Foundation

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

• Alvin H. Rivera, MD
• Kevin Hua, DO
• Jori Leslie, CSW
• Johanna M. Wolgast, MD
• Eric Hoffman, MD
• Alexander D. Newton, 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