Grant Landon Davis, APRN
Opted out of Medicare from July 2017 to July 2027. Nurse Practitioner, Psych/Mental Health (APRN) in Richardson, Texas, licensed in TX, with an NPI issued in February 2015. Part D covered 375 prescriptions written in 2024, 94% of them generic. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $69,423 in all, mostly speaking and faculty fees.
Overview
| NPI | 1396136693 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Feb 9, 2015 |
| Last updated in NPPES | Nov 12, 2025 |
| Certified by provider | Nov 12, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | AP127536 | TX |
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 Jul 1, 2017 – Jul 1, 2027 |
| Can order and refer | No |
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) | 375 · 516 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $107,064 |
| Generic share | 94% of claims |
Industry payments (Open Payments)
- 2025$69,423 · 207 payments from 13 companies
- 2024$93,172 · 236 payments from 13 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $35,983 | 87 |
| Janssen Pharmaceuticals, Inc | $20,034 | 29 |
| Axsome Therapeutics, Inc. | $12,327 | 24 |
| Vanda Pharmaceuticals Inc. | $292.36 | 18 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $216.33 | 14 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$52,800 · 27 payments
- Honoraria$11,214 · 6 payments
- Food and Beverage$3,043 · 133 payments
- Travel and Lodging$2,366 · 41 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 42 psychiatric nurse practitioners in Richardson · All psychiatric nurse practitioners in Texas