Quick answers
- Which hospitals does David P. Ondrula work at?
- Medicare's official clinician data lists David P. Ondrula at 2 hospitals: Advocate Good Shepherd Hospital and Advocate Sherman Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David P. Ondrula see patients?
- Medicare's clinician data lists 1 practice location in Barrington, IL. Call before your visit to confirm the address.
- What is David P. Ondrula's specialty?
- Medicare lists General Surgery as the primary specialty, and also Colorectal Surgery (Proctology).
- Does David P. Ondrula accept Medicare assignment?
- Yes. Medicare's clinician data says David P. Ondrula 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 David P. Ondrula?
- (847) 381-8161, as listed in official Medicare / NPI Registry data.
- What is David P. Ondrula's NPI number?
- 1013950690. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David P. Ondrula works
Medicare's Facility Affiliation Data lists David P. Ondrula at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Shepherd HospitalBarrington, IL · Acute Care Hospital · CCN 140291
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · CCN 140030
Practice locations
Addresses where David P. Ondrula is enrolled with Medicare (CMS data updated 2026-10-02).
- 802 Fox Glen CtBarrington, IL 60010 (847) 381‑8161
Group practices
Medicare enrollment lists David P. Ondrula as a member of this group (CMS data updated 2026-10-02).
- Advanced Surgical Care of Northern Illinois, Ltd9 clinicians in the group
Specialties
Other general surgeons in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013950690 |
| 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