Constantine Delis, DO
NPI 1003892043 · Nephrology Physician · Melrose Park, IL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Constantine Delis, DO is a Nephrology Physician provider in Melrose Park, IL (NPI 1003892043).
Provider details
- NPI number
- 1003892043
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 036092711 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,549 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 682 | $81 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 205 | $356 |
| Hemodialysis Procedure With Physician Evaluation90935 | 198 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 190 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 67 | $176 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 72 | 27 |
| Hydralazine Hcl | 31 | 16 |
| Allopurinol | 30 | 12 |
| Sucroferric Oxyhydroxidebrand: Velphoro | 29 | — |
| Lisinopril | 23 | — |
| Carvedilol | 23 | — |
| Furosemide | 22 | 11 |
| Nifedipinebrand: Nifedipine Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$317 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-21
- Last updated
- 2025-07-28
- Certified
- 2025-07-28
Frequently asked questions
- What is Constantine Delis's NPI number?
- Constantine Delis's National Provider Identifier (NPI) is 1003892043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Constantine Delis's specialty?
- Constantine Delis is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Constantine Delis located?
- Constantine Delis's practice location on file with NPPES is 675 W North Ave Ste 209, Melrose Park, IL 60160-1630.
- What is Constantine Delis's phone number?
- The practice phone number listed in the NPPES registry for Constantine Delis is (312) 654-2744.
- Does Constantine Delis accept Medicare?
- Constantine Delis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Constantine Delis's NPI active?
- Yes — Constantine Delis's NPI (1003892043) is active in the NPPES registry as of the last update on 2025-07-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.