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Gynecological Oncology

Sahana Somasegar, MD

Works at hospitals in Evanston, IL · Arlington Heights, IL · Chicago, IL · Illinois

Summary

Dr. Sahana Somasegar, MD is a gynecologic oncologist at 1300 Oak Ave, Evanston, IL 60201. Phone: (847) 869-1300. Accepts Medicare assignment. NPI 1508359464. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

From official Medicare data

This page shows what Medicare's official clinician data says about Sahana Somasegar, 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 Sahana Somasegar accept Medicare assignment?
Yes. Medicare's clinician data says Sahana Somasegar 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.
What is Sahana Somasegar's NPI number?
1508359464. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sahana Somasegar works

Medicare's Facility Affiliation Data lists Sahana Somasegar 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 Sahana Somasegar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Gynecological Oncology doctors in Illinois →

Other gynecologic oncologists in Evanston

Clinicians with the same Medicare primary specialty in Evanston, IL — not a recommendation.

All gynecologic oncologists in Evanston →

Other clinicians in Endeavor Health Medical Group

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

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1508359464
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians