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Hematology/Oncology

Sangeeta Aggarwal, MD

Works at hospitals in San Jose, CA · Stanford, CA · California

Summary

Dr. Sangeeta Aggarwal, MD is a hematologist-oncologist at 751 S Bascom Ave, Santa Clara Vly Med, San Jose, CA 95128. Phone: (408) 885-5000. Accepts Medicare assignment. In 2024, Sangeeta Aggarwal had 274 Original Medicare patients and 601 services. NPI 1225008394. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Sangeeta Aggarwal, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Sangeeta Aggarwal accept Medicare assignment?
Yes. Medicare's clinician data says Sangeeta Aggarwal accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Sangeeta Aggarwal see?
In 2024, CMS data shows 274 Original Medicare patients and 601 services for Sangeeta Aggarwal. This counts Original Medicare only and measures volume, not quality.
What is Sangeeta Aggarwal's NPI number?
1225008394. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Sangeeta Aggarwal, 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.

Original Medicare patients274
Services billed to Medicare601
Different services or procedures20
Participating Medicare providerYes
Average age of these patients73

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)290 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)106 services
  3. Telephone medical discussion with physician, 21-30 minutes (99443)48 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)43 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)22 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 pressure72%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)62%
  • High cholesterol60%
  • Diabetes47%
  • Arthritis25%
  • Chronic kidney disease19%

Hospitals where Sangeeta Aggarwal works

Medicare's Facility Affiliation Data lists Sangeeta Aggarwal 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.

Practice locations

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

Group practices

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

  • County of Santa Clara1,022 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in San Jose

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

All hematologist-oncologists in San Jose →

Other clinicians in County of Santa Clara

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

Clinician information

CredentialMD
Graduation year1989 (37 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1225008394
CorrectionsReport an error or suggest an update →

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