Daniel Williamson
NPI 1396192407ActiveIndividual· Psychiatry & Neurology, Child & Adolescent Psychiatry· Watertown, NY
Psychiatry & Neurology, Child & Adolescent Psychiatry with Samaritan Medical Center, practicing in Watertown, New York. Their prescriptions cost Medicare Part D more than their services did: $94,541 for 442 claims, against $5,520 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 13 companies reporting payments in 2025, $1,217 in all, mostly food and beverage. Lists Samaritan Medical Center as a hospital affiliation.
Overview
| NPI | 1396192407 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | May 18, 2016 |
| Last updated in NPPES | Jul 8, 2021 |
| Certified by provider | Jul 8, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Child & Adolescent Psychiatry Primary | 2084P0804X | 307727 | NY |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 307727 | NY |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 116 across 10 procedure codes |
| Paid by Medicare | $5,520 |
Part D prescriptions in 2024
| Prescriptions (claims) | 442 · 516 30-day fills |
|---|---|
| Patients | 26 |
| Total drug cost | $94,541 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Samaritan Medical CenterWatertown, NY · 153 clinicians
Hospital affiliation
- Samaritan Medical CenterWatertown, NY
Industry payments (Open Payments)
- 2025$1,217 · 63 payments from 13 companies
- 2024$739.44 · 39 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $266.81 | 11 |
| E.R. Squibb & Sons, L.L.C. | $226.15 | 14 |
| Otsuka America Pharmaceutical, Inc. | $109.17 | 5 |
| Abbvie Inc. | $106.15 | 6 |
| Alkermes, Inc. | $98.53 | 5 |
What the 2025 payments were for
- Food and Beverage$1,217 · 63 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other child and adolescent psychiatrists in Watertown
- 1700297686
- 1205093242