Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Gregory C Nacopoulos, DO

Individual provider Surgery Physician · NPI 1407953987

Dr. Gregory C Nacopoulos, DO practises General Surgery in Robinson, Illinois. Graduated from Midwestern University, Chicago College of Osteopathic Med in 1995, 31 years ago. Practices with Thorek Memorial Hospital, a 47-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
31
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IL
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1000 N Allen St
Robinson, IL 62454-1114 Not confirmed with CMS for 12 years — call before visiting
Phone: (618) 546-2618
Fax: (618) 546-2648
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 036102151 (IL)

Record details

NPI number1407953987
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedSeptember 19, 2006
Last updated in NPPESJuly 14, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Also practisesVASCULAR SURGERY
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 1995 (31 years in practice)
Group practice Thorek Memorial Hospital — 47 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Honoraria $9,000 1 payment
Travel and Lodging $5,405 11 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $360 1 payment · a meal or drink at a meeting or visit, not a fee
Consulting Fee $265 1 payment

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Thorek Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 47 clinicians in the practice; 12 are shown here.

Other providers in Robinson