NPPES file of Aug 9, 2026

Gregory C. Nacopoulos, DO

Surgery Physician · Robinson, IL

Gregory C. Nacopoulos, DO is a surgery physician with a practice address in Robinson, Illinois, and NPI 1407953987, issued on Sep 19, 2006. Check the license (Illinois 036102151, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407953987
Name
Gregory C. Nacopoulos
Credential
DO
Primary taxonomy
Surgery Physician 208600000X
License number
036102151 IL
Self-reported in NPPES; status is on the state search
Practice location
1000 N Allen St, Robinson, IL 62454
Phone
(618) 546-2618
Enumerated
Sep 19, 2006
Record last updated
Jul 14, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(618) 546-2648
Medicaid ID
036102151 IL
Medicare enrollment
Enrolled (PECOS I20041101000061); accepts Medicare assignment
Medical or professional school
Midwestern University, Chicago College Of Osteopathic Med, 1995
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1000 N Allen St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Katie AydtSpeech-Language Pathologist1669039871
  2. Clara Barthelme, NP-CNurse Practitioner1417787656
  3. Devan Beeman, PTAPhysical Therapy Assistant1063075711
  4. Rikki Benson, M.A. CCC-SLPSpeech-Language Pathologist1891079448
  5. Carol Bergbower, CRNACertified Registered Nurse Anesthetist1346281763
  6. Nicholas Brissey, DPMFoot & Ankle Surgery Podiatrist1801258629

Verify Gregory C. Nacopoulos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036102151
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $135.00

1 payment: compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program; the largest payer was C. R. Bard, Inc. & Subsidiaries. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregory Nacopoulos$135.00
  2. Specialty average$3,513.80

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Thorek Memorial HospitalChicago, IL · Acute Care Hospitals

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).

Gregory C. Nacopoulos among 1,520 surgery physician records in Illinois

Gregory C. Nacopoulos, DO is one of 1,520 surgery physician records with a practice address in Illinois. 66% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 64% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated1995 · median 2004 among the 650 with a school on file
  • Record last updated2014 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 surgery physician records list a practice address in Robinson

They are 4 of the 145 NPPES records with a practice address in Robinson, and 1,520 surgery physician records in Illinois.

The 8 surgery physician records with the nearest ZIP codes

  1. Joseph Kunzelman, MDRobinson, IL 624541588654057
  2. Preston Reilly, MDRobinson, IL 624541033114137
  3. Fred Scott, DORobinson, IL 624541780674655
  4. Justin Orenich, D.O.Olney, IL 624501750615456
  5. Paul Sutherland, MDOlney, IL 624501649252511
  6. Michael Boyd, MDLawrenceville, IL 624391407955248
  7. Joseph Blaser, D.O.Vandalia, IL 624711316064157
  8. Ruben Boyajian, MDEffingham, IL 624011912917188

Common questions

What is Gregory C. Nacopoulos, DO's NPI number?

Gregory C. Nacopoulos, DO's National Provider Identifier (NPI) is 1407953987, issued on Sep 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory C. Nacopoulos, DO located?

The NPPES record lists a practice address at 1000 N Allen St, Robinson, IL, 62454. Phone: (618) 546-2618. Providers update this record themselves, so call before visiting.

How can I verify Gregory C. Nacopoulos, DO's license?

NPPES lists Illinois license number 036102151, 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.

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.