Rex Scott Adamson, M.D.
NPI 1053416701ActiveIndividual· Psychiatry & Neurology, Psychiatry· Modesto, CA
Psychiatry & Neurology, Psychiatry (M.D.) in Modesto, California, licensed in CA, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $1,518,905 for 4,931 claims, against $79,346 paid for services in 2024. Alkermes, Inc. was the largest of 2 companies reporting payments in 2025, $320.43 in all, mostly food and beverage.
Overview
| NPI | 1053416701 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 14, 2006 |
| Last updated in NPPES | Oct 1, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | G85915 | CA |
| Family Medicine | 207Q00000X | G85915 | CA |
| Internal Medicine | 207R00000X | G85915 | CA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | G85915 | 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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 98 |
|---|---|
| Services billed | 1,050 across 10 procedure codes |
| Paid by Medicare | $79,346 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,931 · 5,001 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $1,518,905 |
| Generic share | 83% of claims |
Industry payments (Open Payments)
- 2025$320.43 · 5 payments from 2 companies
- 2024$422.78 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alkermes, Inc. | $183.43 | 3 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $137.00 | 2 |
What the 2025 payments were for
- Food and Beverage$320.43 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other psychiatrists in Modesto
- 1033161740
- 1053660886
- 1093746166
- 1154512036
- 1225334097
- 1285854216
- 1518041144
- 1538278205
- 1790974863
- 1609456680
- 1831453794
- 1114938974
All 66 psychiatrists in Modesto · All psychiatrists in California