Quick answers
- Where does John Andreoni see patients?
- Medicare's clinician data lists 2 practice locations, including Palos Heights, IL. Call before your visit to confirm the address.
- What is John Andreoni's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Infectious Disease.
- Does John Andreoni accept Medicare assignment?
- Yes. Medicare's clinician data says John Andreoni 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 John Andreoni?
- (708) 361-5778, as listed in official Medicare / NPI Registry data.
- What is John Andreoni's NPI number?
- 1225024508. 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 John Andreoni is enrolled with Medicare (CMS data updated 2026-10-02).
- 7804 W College DrPalos Heights, IL 60463 (708) 361‑5778
- 7804 W College Dr, Suite 1NWPalos Heights, IL 60463
Group practices
Medicare enrollment lists John Andreoni as a member of this group (CMS data updated 2026-10-02).
- Southwest Infectious Disease and Internal Medicine S C11 clinicians in the group
Specialties
- Internal Medicineprimary
- Infectious Diseasealso
Other internal medicine doctors in Palos Heights
Clinicians with the same Medicare primary specialty in Palos Heights, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loyola University Of Chicago, Stritch School Of Medicine |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225024508 |
| 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