Quick answers
- Where does Aaron T. Donnell see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago, IL. Call before your visit to confirm the address.
- What is Aaron T. Donnell's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Aaron T. Donnell accept Medicare assignment?
- Yes. Medicare's clinician data says Aaron T. 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 Aaron T. Donnell?
- (773) 388-2322, as listed in official Medicare / NPI Registry data.
- What is Aaron T. Donnell's NPI number?
- 1154304848. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Aaron T. Donnell is enrolled with Medicare (CMS data updated 2026-10-02).
- 2551 N Clark St, Suite 100Chicago, IL 60614 (773) 388‑2322
- 836 W Wellington Ave G, Suite 346Chicago, IL 60657 (773) 388‑2322
Group practices
Medicare enrollment lists Aaron T. Donnell as a member of this group (CMS data updated 2026-10-02).
- Chicago Family Asthma and Allergy SC3 clinicians in the group
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Tennessee, Hsc, College Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154304848 |
| 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
- 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