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Internal Medicine

Sonia P. Gandhi, MD

Works at hospitals in Arlington Heights, IL · Illinois

Summary

Dr. Sonia P. Gandhi, MD is an internal medicine doctor at 2650 Ridge Ave, Evanston, IL 60201. Phone: (847) 618-1000. Accepts Medicare assignment. In 2024, Sonia P. Gandhi had 451 Original Medicare patients and 1,257 services. NPI 1225371370. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 2650 Ridge Ave, Evanston, IL 60201 · Directions (1 more location)
  • Phone: (847) 618‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: Northwest Community Hospital 1
  • Group practice: Endeavor Health Medical Group
  • Medical school: Chicago College Of Medicine And Surgery · graduated 2013 (13 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Sonia P. Gandhi, 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 Sonia P. Gandhi accept Medicare assignment?
Yes. Medicare's clinician data says Sonia P. Gandhi 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 Sonia P. Gandhi see?
In 2024, CMS data shows 451 Original Medicare patients and 1,257 services for Sonia P. Gandhi. This counts Original Medicare only and measures volume, not quality.
What is Sonia P. Gandhi's NPI number?
1225371370. 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 Sonia P. Gandhi, 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 patients451
Services billed to Medicare1,257
Different services or procedures10
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)607 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)244 services
  3. Hospital discharge day management, more than 30 minutes (99239)202 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)82 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)69 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%
  • Arthritis70%
  • Ischemic heart disease51%
  • Heart failure43%
  • Diabetes42%

Hospitals where Sonia P. Gandhi works

Medicare's Facility Affiliation Data lists Sonia P. Gandhi 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.

  • Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252

Practice locations

Addresses where Sonia P. Gandhi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sonia P. Gandhi as a member of this group (CMS data updated October 2, 2026).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Evanston

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

All internal medicine doctors 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
Medical schoolChicago College Of Medicine And Surgery
Graduation year2013 (13 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1225371370
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