Demetrius K. Lopes, M.D.
NPI 1184693244ActiveIndividual· Neurological Surgery· Park Ridge, IL
Neurological Surgery (M.D.) with Advocate Health and Hospitals Corporation, practicing in Park Ridge, Illinois. Mostly services rather than prescriptions: Medicare paid $119,165 for 170 patients in 2024, with only 16 Part D claims. Stryker Corporation was the largest of 5 companies reporting payments in 2025, $42,256 in all, mostly consulting fees. Lists Advocate Good Samaritan Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1184693244 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Feb 25, 2022 |
| Certified by provider | Feb 25, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 036105112 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurosurgery (IL); Practitioner - Neurosurgery (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 170 |
|---|---|
| Services billed | 394 across 40 procedure codes |
| Paid by Medicare | $119,165 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 33 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $177.05 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical group
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
Hospital affiliations
- Advocate Good Samaritan HospitalDowners Grove, IL
- Advocate Good Shepherd HospitalBarrington, IL
- Advocate Illinois Masonic Medical CenterChicago, IL
- Advocate Lutheran General HospitalPark Ridge, IL
- Advocate Sherman HospitalElgin, IL
Industry payments (Open Payments)
- 2025$42,256 · 33 payments from 5 companies
- 2024$1,504 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $39,507 | 28 |
| Rapid Medical Ltd | $2,400 | 1 |
| Siemens Medical Solutions USA, Inc. | $291.38 | 2 |
| Medical Device Business Services, Inc. | $37.35 | 1 |
| Route 92 Medical, Inc. | $20.87 | 1 |
What the 2025 payments were for
- Consulting Fee$24,450 · 8 payments
- Travel and Lodging$17,333 · 14 payments
- Food and Beverage$472.84 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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