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Hospitalist

Peter Lyson, MD

Works at hospitals in Harvey, IL · Palos Heights, IL · New Lenox, IL · Illinois

Summary

Peter Lyson, MD (Hospitalist) is listed by Medicare at 3 hospitals in Harvey, IL, Palos Heights, IL and New Lenox, IL. NPI 1154900199. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Peter Lyson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

HospitalistPrimary specialty
YesAccepts Medicare assignment
5Years since medical school (graduated 2021)
Loyola University Of Chicago, Stritch School Of MedicineMedical school
MaleGender (as listed)
Dupage Medical Group LtdGroup practice (+1 more)

Quick answers

Which hospitals does Peter Lyson work at?
Medicare's official clinician data lists Peter Lyson at 3 hospitals: Ingalls Memorial Hospital, Palos Community Hospital and Silver Cross Hospital and Medical Centers. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Peter Lyson see patients?
Medicare's clinician data lists 3 practice locations, including Calumet City, IL, Flossmoor, IL and Bloomingdale, IL. Call before your visit to confirm the address.
What is Peter Lyson's specialty?
Medicare lists Hospitalist as the primary specialty.
Does Peter Lyson accept Medicare assignment?
Yes. Medicare's clinician data says Peter Lyson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Peter Lyson?
(954) 939-5000, as listed in official Medicare / NPI Registry data.
What is Peter Lyson's NPI number?
1154900199. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Peter Lyson works

Medicare's Facility Affiliation Data lists Peter Lyson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Peter Lyson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Peter Lyson as a member of these groups (CMS data updated 2026-10-02).

  • Dupage Medical Group Ltd1,322 clinicians in the group
  • Harvey Emergency Physicians PLLC49 clinicians in the group

Specialties

Find other Hospitalist doctors in Illinois →

Other hospitalists in Illinois

Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.

All hospitalists in Illinois →

Clinician information

CredentialMD
Medical schoolLoyola University Of Chicago, Stritch School Of Medicine
Graduation year2021
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154900199
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians