Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Ronald Sam, DO

Works at hospitals in Oak Lawn, IL · Evergreen Park, IL · Illinois

Summary

Ronald Sam, DO (Internal Medicine) is listed by Medicare at 2 hospitals in Oak Lawn, IL and Evergreen Park, IL. NPI 1073537643. 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 Ronald Sam, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
33Years since medical school (graduated 1993)
MaleGender (as listed)
Lake County Acute Care LLPGroup practice

Quick answers

Which hospitals does Ronald Sam work at?
Medicare's official clinician data lists Ronald Sam at 2 hospitals: Advocate Christ Hospital & Medical Center and OSF Little Company of Mary Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ronald Sam see patients?
Medicare's clinician data lists 4 practice locations, including Gurnee, IL, Round Lake Beach, IL and Oak Lawn, IL. Call before your visit to confirm the address.
What is Ronald Sam's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Pediatric Medicine.
Does Ronald Sam accept Medicare assignment?
Yes. Medicare's clinician data says Ronald Sam 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 Ronald Sam?
(847) 249-2800, as listed in official Medicare / NPI Registry data.
What is Ronald Sam's NPI number?
1073537643. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ronald Sam works

Medicare's Facility Affiliation Data lists Ronald Sam 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 Ronald Sam is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ronald Sam as a member of this group (CMS data updated 2026-10-02).

  • Lake County Acute Care LLP18 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Gurnee

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

All internal medicine doctors in Gurnee →

Clinician information

CredentialDO
Graduation year1993
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1073537643
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