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Family Practice

Paul Omastiak, MD

Works at hospitals in Oak Lawn, IL · Illinois

Summary

Paul Omastiak, MD (Family Practice) is listed by Medicare at 1 hospital in Oak Lawn, IL. NPI 1821020124. 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 Paul Omastiak, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
45Years since medical school (graduated 1981)
Saint Louis University School Of MedicineMedical school
MaleGender (as listed)
Lawn Medical Center, S.C.Group practice

Quick answers

Which hospitals does Paul Omastiak work at?
Medicare's official clinician data lists Paul Omastiak at 1 hospital: Advocate Christ Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Paul Omastiak see patients?
Medicare's clinician data lists 1 practice location in Oak Lawn, IL. Call before your visit to confirm the address.
What is Paul Omastiak's specialty?
Medicare lists Family Practice as the primary specialty.
Does Paul Omastiak accept Medicare assignment?
Yes. Medicare's clinician data says Paul Omastiak 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 Paul Omastiak?
(708) 425-5500, as listed in official Medicare / NPI Registry data.
What is Paul Omastiak's NPI number?
1821020124. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Paul Omastiak works

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

Group practices

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

  • Lawn Medical Center, S.C.11 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Oak Lawn

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

All family doctors in Oak Lawn →

Clinician information

CredentialMD
Medical schoolSaint Louis University School Of Medicine
Graduation year1981
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821020124
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