Adam Phillip Nelson, M.D.
NPI 1124032230ActiveIndividual· Psychiatry & Neurology, Psychiatry· Mill Valley, CA
Opted out of Medicare from August 2015 to August 2027. Psychiatry & Neurology, Psychiatry (M.D.) in Mill Valley, California, licensed in CA, with an NPI issued in July 2006. Part D covered 419 prescriptions written in 2024, 87% of them generic. Axsome Therapeutics, Inc. was the largest of 6 companies reporting payments in 2025, $793.65 in all, mostly food and beverage.
Overview
| NPI | 1124032230 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 27, 2006 |
| Last updated in NPPES | Oct 4, 2023 |
| Certified by provider | Oct 4, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | G68858 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Aug 4, 2015 – Aug 4, 2027 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 419 · 586 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $61,429 |
| Generic share | 87% of claims |
Industry payments (Open Payments)
- 2025$793.65 · 17 payments from 6 companies
- 2024$734.89 · 19 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Axsome Therapeutics, Inc. | $238.50 | 4 |
| Neurocrine Biosciences, Inc. | $195.33 | 4 |
| Otsuka America Pharmaceutical, Inc. | $152.41 | 4 |
| Vanda Pharmaceuticals Inc. | $125.00 | 1 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $61.41 | 3 |
What the 2025 payments were for
- Food and Beverage$793.65 · 17 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 26 psychiatrists in Mill Valley · All psychiatrists in California