Subramanian Sivarajan, MD

Medicare activity in 2024

Official CMS public-use data for Subramanian Sivarajan, 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. Injection, darbepoetin alfa, 1 microgram (non-esrd use) (J0881)11,760 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)423 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)186 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)135 services
5. Injection of drug or substance under skin or into muscle (96372)102 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%
• Chronic kidney disease75%
• Diabetes44%
• Arthritis39%
• Ischemic heart disease39%

Hospitals where Subramanian Sivarajan works

Medicare's Facility Affiliation Data lists Subramanian Sivarajan 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.

• Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
• Sequoia HospitalRedwood City, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050197
• Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

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

• 795 El Camino RealPalo Alto, CA 94301 (415) 600‑1020

Group practices

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

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Nephrologyprimary

Find other Nephrology doctors in California →

Other nephrologists in Palo Alto

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

• Luis Alvarez, MD
• Cynthia Wong, MD
• Paul C. Grimm, MD
• Sara G. Kibrom, MD
• McKenna L. Eisenbeisz, MD
• Mary B. Leonard, MD

All nephrologists in Palo Alto →

Other clinicians in Sutter Bay Medical Foundation

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

• Parker J. Strickland
• Caitrin Temmen
• Shyam R. Shah, MD
• Carl B. Lindberg
• Mario Rofael, PA
• Spencer B. Lewis, 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