Nicholas G. Apostolopoulos, MD
Family Medicine Physician · Naperville, IL
Nicholas G. Apostolopoulos, MD is a family medicine physician with a practice address in Naperville, Illinois, and NPI 1790870822, issued on Oct 4, 2006. Check the license (Illinois 036098378, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Nicholas G. Apostolopoulos
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036098378 IL
01050797A IN
Self-reported in NPPES; status is on the state search - Practice location
- 4003 S Route 59, Naperville, IL 60564
- Phone
- (888) 693-6437
- Enumerated
- Oct 4, 2006
- Record last updated
- Aug 3, 2023
- Fax
- (630) 432-6667
- Medicare enrollment
- Enrolled (PECOS I20050216000257); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 4003 S Route 59
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy DusekNurse Practitioner1669837001
- Jimmy Enomoto, DPTPhysical Therapist1316425820
- Thomas Fry, D.O.Family Medicine Physician1619085206
- Devyn Harter, PT, DPTPhysical Therapist1780249953
- Dorota Kawczynska-Pstrucha, PTPhysical Therapist1801831839
- Brian Lenahan, D.O.Family Medicine Physician1053462788
Verify Nicholas G. Apostolopoulos 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 036098378Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average family medicine physician in 2024
176 Medicare Part D claims for 122 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin34 claims
- Nitrofurantoin Mono-Macro14 claims
- Mupirocin12 claims
- Cephalexin11 claims
- Prednisone11 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.
Bills Medicare through one group practice
- University OF ChicagoChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nicholas G. Apostolopoulos among 6,215 family medicine physician records in Illinois
Nicholas G. Apostolopoulos, MD is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1996 · median 2006 among the 3,714 with a school on file
- Record last updated2023 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 family medicine physician records list a practice address in Naperville
They are 86 of the 4,634 NPPES records with a practice address in Naperville, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Naperville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Deborah Coleman, MDNaperville, IL 605641427161678
- James CunnarNaperville, IL 605641164538617
- Thomas Fry, D.O.Naperville, IL 605641619085206
- Joseph Giordano, DONaperville, IL 605641275520934
- Brian Lenahan, D.O.Naperville, IL 605641053462788
- Barbara Opalka, D.O.Naperville, IL 605641063404150
- Michael Peters, MDNaperville, IL 605641023005097
- Soujanya Pulluru, MDNaperville, IL 605641912974940
Common questions
What is Nicholas G. Apostolopoulos, MD's NPI number?
Nicholas G. Apostolopoulos, MD's National Provider Identifier (NPI) is 1790870822, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nicholas G. Apostolopoulos, MD located?
The NPPES record lists a practice address at 4003 S Route 59, Naperville, IL, 60564. Phone: (888) 693-6437. Providers update this record themselves, so call before visiting.
How can I verify Nicholas G. Apostolopoulos, MD's license?
NPPES lists Illinois license number 036098378, 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 Nicholas G. Apostolopoulos, MD prescribe under Medicare Part D?
In 2024, Nicholas G. Apostolopoulos, MD had 176 Medicare Part D claims for 122 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.