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Emergency Medicine

Sydney W. Schneidman, MD

Works at hospitals in Winfield, IL · Illinois

Summary

Dr. Sydney W. Schneidman, MD is an emergency medicine doctor at 1025 W Everett Rd, Suite 101, Lake Forest, IL 60045. Phone: (847) 234-7950. Accepts Medicare assignment. In 2024, Sydney W. Schneidman had 400 Original Medicare patients and 1,754 services. NPI 1679730766. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1025 W Everett Rd, Suite 101, Lake Forest, IL 60045 · Directions
  • Phone: (847) 234‑7950
  • Medicare: Accepts Medicare assignment
  • Hospital: Northwestern Medicine Central Dupage Hospital
  • Group practice: Mass Medical SC
  • Medical school: graduated 1979 (47 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Sydney W. Schneidman, 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 Sydney W. Schneidman accept Medicare assignment?
Yes. Medicare's clinician data says Sydney W. Schneidman 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 Sydney W. Schneidman see?
In 2024, CMS data shows 400 Original Medicare patients and 1,754 services for Sydney W. Schneidman. This counts Original Medicare only and measures volume, not quality.
What is Sydney W. Schneidman's NPI number?
1679730766. 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 Sydney W. Schneidman, 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 patients400
Services billed to Medicare1,754
Different services or procedures92
Participating Medicare providerYes
Average age of these patients77

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)239 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)162 services
  3. Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza (87428)85 services
  4. Injection, ceftriaxone sodium, per 250 mg (J0696)80 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)67 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 cholesterol66%
  • High blood pressure58%
  • Arthritis46%
  • Osteoporosis28%
  • Ischemic heart disease26%
  • Anxiety19%

Hospitals where Sydney W. Schneidman works

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

Group practices

Medicare enrollment lists Sydney W. Schneidman as a member of this group (CMS data updated October 2, 2026).

  • Mass Medical SC5 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Illinois →

Other emergency medicine doctors in Lake Forest

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

All emergency medicine doctors in Lake Forest →

Other clinicians in Mass Medical SC

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

Clinician information

CredentialMD
Graduation year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679730766
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