Quick answers
- Which hospitals does Mark T. De Meo work at?
- Medicare's official clinician data lists Mark T. De Meo at 2 hospitals: Rush Oak Park Hospital and Rush University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark T. De Meo see patients?
- Medicare's clinician data lists 4 practice locations, including Chicago, IL and Oak Brook, IL. Call before your visit to confirm the address.
- What is Mark T. De Meo's specialty?
- Medicare lists Gastroenterology as the primary specialty.
- Does Mark T. De Meo accept Medicare assignment?
- Yes. Medicare's clinician data says Mark T. De Meo 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.
- Does Mark T. De Meo offer telehealth?
- Medicare's clinician data says Mark T. De Meo offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark T. De Meo?
- (312) 942-5904, as listed in official Medicare / NPI Registry data.
- What is Mark T. De Meo's NPI number?
- 1972549327. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark T. De Meo works
Medicare's Facility Affiliation Data lists Mark T. De Meo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Rush Oak Park HospitalOak Park, IL · Acute Care Hospital · CCN 140063
- Rush University Medical CenterChicago, IL · Acute Care Hospital · CCN 140119
Practice locations
Addresses where Mark T. De Meo is enrolled with Medicare (CMS data updated 2026-10-02).
- 1520 W Harrison StChicago, IL 60607 (312) 942‑5904
- 1653 W Congress PkwyChicago, IL 60612
- 1700 W Van Buren StChicago, IL 60612 (312) 563‑2875
- 2011 York RdOak Brook, IL 60523
Group practices
Medicare enrollment lists Mark T. De Meo as a member of this group (CMS data updated 2026-10-02).
- Rush University Medical Group1,551 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1972549327 |
| 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