Timothy Witham, M.D.
NPI 1841236825ActiveIndividual· Neurological Surgery· Chicago, IL
Neurological Surgery (M.D.) in Chicago, Illinois, trained at Johns Hopkins University School of Medicine (class of 1994). Medicare paid $245,816 for services to 290 patients in 2024. Augmedics Inc. was the largest of 5 companies reporting payments in 2025, $24,120 in all, mostly speaking and faculty fees.
Overview
| NPI | 1841236825 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 20, 2006 |
| Last updated in NPPES | Apr 10, 2026 |
| Certified by provider | Apr 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 036178633 | IL |
| Neurological Surgery | 207T00000X | D61713 | MD |
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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 290 |
|---|---|
| Services billed | 769 across 65 procedure codes |
| Paid by Medicare | $245,816 |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1994 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical groups
- University of ChicagoChicago, IL · 1,712 clinicians
- The University of Chicago Medical CenterChicago, IL · 915 clinicians
- Meritus Medical Center IncHagerstown, MD · 743 clinicians
- Agape Physical Therapy and Sports Rehabilitation LPForest Hill, MD · 678 clinicians
- Chesterton Physical Therapy IncChesterton, IN · 186 clinicians
Hospital affiliations
- Johns Hopkins Bayview Medical CenterBaltimore, MD
- Johns Hopkins Hospital, theBaltimore, MD
- The University of Chicago Medical CenterChicago, IL
Other facilities
- The Johns Hopkins Home Health Services, IncHome health agency · Baltimore, MD
Industry payments (Open Payments)
- 2025$24,120 · 26 payments from 5 companies
- 2024$44,486 · 55 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Augmedics Inc. | $15,392 | 12 |
| Merck Sharp & Dohme LLC | $8,054 | 8 |
| Alphatec Spine, Inc | $297.24 | 3 |
| Circinus Medical Technology LLC | $249.66 | 2 |
| Kuros Biosciences USA, Inc | $127.37 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11,625 · 1 payment
- Consulting Fee$10,040 · 2 payments
- Travel and Lodging$1,308 · 8 payments
- Food and Beverage$1,147 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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