Johnny Lee Williamson, MD
NPI 1144310509ActiveIndividual· Psychiatry & Neurology, Child & Adolescent Psychiatry· New Lenox, IL
Psychiatry & Neurology, Child & Adolescent Psychiatry (MD) in New Lenox, Illinois, trained at Meharry Medical College School of Medicine (class of 1997). 39 Medicare patients in 2024, $9,957 paid; nearly all of their 148 Part D prescriptions were generic (96%). Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 3 companies reporting payments in 2024, $54.74 in all, mostly food and beverage.
Overview
| NPI | 1144310509 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 13, 2006 |
| Last updated in NPPES | Dec 26, 2025 |
| Certified by provider | Dec 26, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Child & Adolescent Psychiatry Primary | 2084P0804X | 036100519 | IL |
| Psychiatry & Neurology, Child & Adolescent Psychiatry | 2084P0804X | 2022-02652 | NC |
| Psychiatry & Neurology, Child & Adolescent Psychiatry | 2084P0804X | 169712 | CA |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | D0090783 | MD |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 036100519 | IL |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 169712 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (IL); Practitioner - Psychiatry (IN); Practitioner - Psychiatry (MD); Practitioner - Psychiatry (NC); Practitioner - Psychiatry (NV); Practitioner - Psychiatry (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 39 |
|---|---|
| Services billed | 165 across 15 procedure codes |
| Paid by Medicare | $9,957 |
Part D prescriptions in 2024
| Prescriptions (claims) | 148 · 234 30-day fills |
|---|---|
| Patients | 22 |
| Total drug cost | $7,139 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Meharry Medical College School of Medicine |
|---|---|
| Graduation year | 1997 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical groups
- Wakemed Specialists Group LLCCary, NC · 876 clinicians
- Cth Physicians ClinicReno, NV · 108 clinicians
- Connections Medical Group Associates LLCNew Lenox, IL · 15 clinicians
Industry payments (Open Payments)
- 2024$54.74 · 3 payments from 3 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $23.75 | 1 |
| Lundbeck LLC | $16.04 | 1 |
| Otsuka America Pharmaceutical, Inc. | $14.95 | 1 |
What the 2024 payments were for
- Food and Beverage$54.74 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other child and adolescent psychiatrists in New Lenox
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