Quick answers
- Which hospitals does Patrick J. Oleary work at?
- Medicare's official clinician data lists Patrick J. Oleary at 5 hospitals: Advocate Good Samaritan Hospital, Advocate Illinois Masonic Medical Center, Carle Health Methodist Hospital, Edward Hospital and Elmhurst Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Patrick J. Oleary see patients?
- Medicare's clinician data lists 1 practice location in Winfield, IL. Call before your visit to confirm the address.
- What is Patrick J. Oleary's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Patrick J. Oleary accept Medicare assignment?
- Yes. Medicare's clinician data says Patrick J. Oleary 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.
- Does Patrick J. Oleary offer telehealth?
- Medicare's clinician data says Patrick J. Oleary offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Patrick J. Oleary?
- (630) 933-8100, as listed in official Medicare / NPI Registry data.
- What is Patrick J. Oleary's NPI number?
- 1942278890. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Patrick J. Oleary works
Medicare's Facility Affiliation Data lists Patrick J. Oleary at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · CCN 140288
- Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · CCN 140182
- Carle Health Methodist HospitalPeoria, IL · Acute Care Hospital · CCN 140209
- Edward HospitalNaperville, IL · Acute Care Hospital · CCN 140231
- Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · CCN 140200
Practice locations
Addresses where Patrick J. Oleary is enrolled with Medicare (CMS data updated 2026-10-02).
- 25 N Winfield Rd, Suite 300Winfield, IL 60190 (630) 933‑8100
Group practices
Medicare enrollment lists Patrick J. Oleary as a member of this group (CMS data updated 2026-10-02).
- Dupage Medical Group Ltd1,322 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Illinois →
Other cardiologists in Winfield
Clinicians with the same Medicare primary specialty in Winfield, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | R Franklin University Of Med & Sci/chicago Medical School |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1942278890 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians