Quick answers
- Where does Marissa Liveris see patients?
- Medicare's clinician data lists 2 practice locations, including Naperville, IL and Downers Grove, IL. Call before your visit to confirm the address.
- What is Marissa Liveris's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Marissa Liveris accept Medicare assignment?
- Yes. Medicare's clinician data says Marissa Liveris 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 Marissa Liveris?
- (630) 852-4050, as listed in official Medicare / NPI Registry data.
- What is Marissa Liveris's NPI number?
- 1255766531. 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 Marissa Liveris is enrolled with Medicare (CMS data updated 2026-10-02).
- 1020 E Ogden Ave, Suite 205Naperville, IL 60563 (630) 852‑4050
- 3825 Highland Ave, Suite 204Downers Grove, IL 60515 (630) 987‑4797
Group practices
Medicare enrollment lists Marissa Liveris as a member of this group (CMS data updated 2026-10-02).
- Allergy and Asthma Associates of Dupage, P.C.4 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Naperville
Clinicians with the same Medicare primary specialty in Naperville, IL — not a recommendation.
Clinician information
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255766531 |
| 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