Nathan S. Johnston
NPI 1619232113ActiveIndividual· Psychiatry & Neurology, Psychiatry· San Antonio, TX
Psychiatry & Neurology, Psychiatry in San Antonio, Texas, licensed in TX and WA, with an NPI issued in July 2012. In 2024 Medicare paid $364,850 for 72 patients, and Part D covered 354 of their prescriptions, 58% of them generic. Axsome Therapeutics, Inc. was the largest of 5 companies reporting payments in 2025, $221,219 in all, mostly honoraria.
Overview
| NPI | 1619232113 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jul 10, 2012 |
| Last updated in NPPES | Feb 3, 2026 |
| Certified by provider | Feb 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | Q6755 | TX |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | OP61563295 | WA |
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 (TX); Practitioner - Psychiatry (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 2,183 across 22 procedure codes |
| Paid by Medicare | $364,850 |
Part D prescriptions in 2024
| Prescriptions (claims) | 354 · 389 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $175,772 |
| Generic share | 58% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Industry payments (Open Payments)
- 2025$221,219 · 212 payments from 5 companies
- 2024$102,720 · 123 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Axsome Therapeutics, Inc. | $111,272 | 108 |
| Janssen Pharmaceuticals, Inc | $108,613 | 100 |
| Brainsway USA Inc | $1,107 | 2 |
| Janssen Scientific Affairs, LLC | $200.00 | 1 |
| E.R. Squibb & Sons, L.L.C. | $26.52 | 1 |
What the 2025 payments were for
- Honoraria$97,625 · 38 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$93,844 · 22 payments
- Travel and Lodging$24,435 · 70 payments
- Food and Beverage$5,115 · 81 payments
- Consulting Fee$200.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other psychiatrists in San Antonio
- 1013236314
- 1023198280
- 1063404408
- 1063702637
- 1083078513
- 1164837696
- 1194981696
- 1245315845
- 1275625394
- 1285746974
- 1306836671
- 1306916499
All 407 psychiatrists in San Antonio · All psychiatrists in Texas