Quick answers
- Which hospitals does Peter H. O Donnell work at?
- Medicare's official clinician data lists Peter H. O Donnell at 2 hospitals: The University of Chicago Medical Center and UChicago Medicine Northwest Indiana. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Peter H. O Donnell see patients?
- Medicare's clinician data lists 3 practice locations, including Chicago, IL. Call before your visit to confirm the address.
- What is Peter H. O Donnell's specialty?
- Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
- Does Peter H. O Donnell accept Medicare assignment?
- Yes. Medicare's clinician data says Peter H. O Donnell 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 H. O Donnell?
- (888) 824-0200, as listed in official Medicare / NPI Registry data.
- What is Peter H. O Donnell's NPI number?
- 1861695819. 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 H. O Donnell works
Medicare's Facility Affiliation Data lists Peter H. O Donnell at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- The University of Chicago Medical CenterChicago, IL · Acute Care Hospital · CCN 140088
- UChicago Medicine Northwest IndianaCrown Point, IN · Acute Care Hospital · CCN 150195
Practice locations
Addresses where Peter H. O Donnell is enrolled with Medicare (CMS data updated 2026-10-02).
- 355 E Grand AveChicago, IL 60611 (888) 824‑0200
- 47 W Polk St, Suite G1Chicago, IL 60605 (888) 824‑0200
- 5841 S Maryland AveChicago, IL 60637 (773) 702‑1000
Group practices
Medicare enrollment lists Peter H. O Donnell as a member of these groups (CMS data updated 2026-10-02).
- University of Chicago1,712 clinicians in the group
- The University of Chicago Medical Center915 clinicians in the group
Specialties
- Hematology/Oncologyprimary
- Internal Medicinealso
Other hematologist-oncologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861695819 |
| 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