Tyler Koski, MD
NPI 1124041603ActiveIndividual· Neurological Surgery· Chicago, IL
Neurological Surgery (MD) in Chicago, Illinois, trained at Michigan State University College of Human Medicine (class of 2000). Mostly services rather than prescriptions: Medicare paid $596,368 for 351 patients in 2024, with only 12 Part D claims. Globus Medical, Inc. was the largest of 5 companies reporting payments in 2025, $449,303 in all, mostly royalties and licenses.
Overview
| NPI | 1124041603 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 25, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | — | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurosurgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 351 |
|---|---|
| Services billed | 1,560 across 61 procedure codes |
| Paid by Medicare | $596,368 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12 · 12 30-day fills |
|---|---|
| Total drug cost | $32.65 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Michigan State University College of Human Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Neurosurgery |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Medicine Delnor Community HospitalGeneva, IL
- Northwestern Memorial HospitalChicago, IL
Other facilities
- Aspire Home Healthcare, LLCHome health agency · Morton Grove, IL
- Home Care ExpertsHome health agency · Burr Ridge, IL
- Marianjoy Rehabilitation CenterInpatient rehabilitation facility · Wheaton, IL
Industry payments (Open Payments)
- 2025$449,303 · 38 payments from 5 companies
- 2024$385,358 · 43 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Globus Medical, Inc. | $280,348 | 8 |
| Alphatec Spine, Inc | $103,525 | 20 |
| Medtronic, Inc. | $65,240 | 7 |
| Spineart USA Inc | $169.86 | 2 |
| Depuy Synthes Sales Inc. | $20.26 | 1 |
What the 2025 payments were for
- Royalty or License$432,425 · 14 payments
- Consulting Fee$10,800 · 2 payments
- Travel and Lodging$4,743 · 10 payments
- Food and Beverage$1,334 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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