Quick answers
- Which hospitals does Constantine Delis work at?
- Medicare's official clinician data lists Constantine Delis at 4 hospitals: Advocate Good Samaritan Hospital, Community First Medical Center, Loyola Gottlieb Memorial Hospital and Loyola University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Constantine Delis see patients?
- Medicare's clinician data lists 6 practice locations, including Chicago, IL, Melrose Park, IL and Oak Park, IL. Call before your visit to confirm the address.
- What is Constantine Delis's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Constantine Delis accept Medicare assignment?
- Yes. Medicare's clinician data says Constantine Delis 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 Constantine Delis?
- (773) 826-7283, as listed in official Medicare / NPI Registry data.
- What is Constantine Delis's NPI number?
- 1003892043. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Constantine Delis works
Medicare's Facility Affiliation Data lists Constantine Delis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Good Samaritan HospitalDowners Grove, IL · Acute Care Hospital · CCN 140288
- Community First Medical CenterChicago, IL · Acute Care Hospital · CCN 140251
- Loyola Gottlieb Memorial HospitalMelrose Park, IL · Acute Care Hospital · CCN 140008
- Loyola University Medical CenterMaywood, IL · Acute Care Hospital · CCN 140276
Practice locations
Addresses where Constantine Delis is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 3435 W Van Buren StChicago, IL 60624 (773) 826‑7283
- 5645 W Addison StChicago, IL 60634 (773) 282‑7000
- 6 N 9th Ave, Suite 309Melrose Park, IL 60160 (773) 366‑4156
- 701 W N AveMelrose Park, IL 60160 (708) 681‑3200
- 733 W Madison StOak Park, IL 60302 (708) 386‑8757
Group practices
Medicare enrollment lists Constantine Delis as a member of this group (CMS data updated 2026-10-02).
- Associates in Nephrology SC52 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Chicago College Of Osteopathy |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003892043 |
| 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