Constantine Geor Delis, DO
Nephrology Physician · Melrose Park, IL
Constantine Geor Delis, DO is a nephrology physician with a practice address in Melrose Park, Illinois, and NPI 1003892043, issued on Dec 21, 2005. Check the license (Illinois 036092711, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Constantine Geor Delis
- Credential
- DO
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 036092711 IL
Self-reported in NPPES; status is on the state search - Practice location
- 675 W North Ave Ste 209, Melrose Park, IL 60160
- Phone
- (312) 654-2744
- Enumerated
- Dec 21, 2005
- Record last updated
- Jul 28, 2025
- Fax
- (708) 338-1790
- Medicaid ID
- 036092711 IL
- Medicare enrollment
- Enrolled (PECOS I20040203000514); accepts Medicare assignment
- Medical or professional school
- Chicago College Of Osteopathy, 1993
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Verify Constantine Geor Delis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036092711Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average nephrology physician in 2024
572 Medicare Part D claims for 113 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Sevelamer Carbonate72 claims
- Hydralazine Hcl31 claims
- Allopurinol30 claims
- Velphoro29 claims
- Carvedilol23 claims
- Lisinopril23 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $317.18
9 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Associates IN Nephrology SCBerwyn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Constantine Geor Delis among 572 nephrology physician records in Illinois
Constantine Geor Delis, DO is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated1993 · median 2002 among the 433 with a school on file
- Record last updated2025 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 nephrology physician records list a practice address in Melrose Park
They are 9 of the 634 NPPES records with a practice address in Melrose Park, and 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in Melrose Park → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Neetha Dhananjaya, M.D.Melrose Park, IL 601601720058639
- Martin Finn, MDMelrose Park, IL 601601922005792
- Rajani Kosuri, M.D.Melrose Park, IL 601601346455185
- David Kracker, MDMelrose Park, IL 601601194722934
- Rizwan Moinuddin, DOMelrose Park, IL 601601275568578
- George Naratadam, D.O.Melrose Park, IL 601601235162637
- Benjamin Strickland, DOMelrose Park, IL 601601316566698
- Osvaldo Wagener, M.D.Melrose Park, IL 601601770563009
Common questions
What is Constantine Geor Delis, DO's NPI number?
Constantine Geor Delis, DO's National Provider Identifier (NPI) is 1003892043, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Constantine Geor Delis, DO located?
The NPPES record lists a practice address at 675 W North Ave Ste 209, Melrose Park, IL, 60160. Phone: (312) 654-2744. Providers update this record themselves, so call before visiting.
How can I verify Constantine Geor Delis, DO's license?
NPPES lists Illinois license number 036092711, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Constantine Geor Delis, DO prescribe under Medicare Part D?
In 2024, Constantine Geor Delis, DO had 572 Medicare Part D claims for 113 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.