Mark Hamming
NPI 1861653453ActiveIndividual· Orthopaedic Surgery· Gurnee, IL
Orthopaedic Surgery in Gurnee, Illinois, trained at Rush Medical College of Rush University (class of 2008). 643 Medicare patients in 2024, $312,671 paid; nearly all of their 256 Part D prescriptions were generic (99%). Davol Inc. was the largest of 5 companies reporting payments in 2025, $127.11 in all, mostly food and beverage.
Overview
| NPI | 1861653453 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jun 17, 2008 |
| Last updated in NPPES | Aug 14, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | 036-136089 | 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 - Orthopedic Surgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 643 |
|---|---|
| Services billed | 5,862 across 99 procedure codes |
| Paid by Medicare | $312,671 |
Part D prescriptions in 2024
| Prescriptions (claims) | 256 · 262 30-day fills |
|---|---|
| Patients | 154 |
| Total drug cost | $1,944 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Illinois Bone and Joint Institute, LLCGurnee, IL · 604 clinicians
Hospital affiliations
- Advocate Condell Medical CenterLibertyville, IL
- Northwestern Lake Forest HospitalLake Forest, IL
- Vista Medical Center EastWaukegan, IL
Other facilities
- Aspire Home Healthcare, LLCHome health agency · Morton Grove, IL
Industry payments (Open Payments)
- 2025$127.11 · 5 payments from 5 companies
- 2024$131.70 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Davol Inc. | $36.38 | 1 |
| Zimmer Biomet Holdings, Inc. | $27.88 | 1 |
| Vericel Corporation | $24.28 | 1 |
| Lightbody Medical Technologies Inc | $23.06 | 1 |
| Treace Medical Concepts, Inc. | $15.51 | 1 |
What the 2025 payments were for
- Food and Beverage$127.11 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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