David E. Nichols
NPI 1588933592ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Santa Rosa, CA
Nurse Practitioner, Psych/Mental Health in Santa Rosa, California, licensed in CA, with an NPI issued in December 2011. Their prescriptions cost Medicare Part D more than their services did: $563,922 for 2,657 claims, against $17,249 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 2 companies reporting payments in 2025, $188.76 in all, mostly food and beverage.
Overview
| NPI | 1588933592 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | Yes |
| NPI issued | Dec 20, 2011 |
| Last updated in NPPES | Jul 26, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 95004102 | CA |
| Registered Nurse | 163W00000X | RN795142 | 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 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 234 across 8 procedure codes |
| Paid by Medicare | $17,249 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,657 · 2,692 30-day fills |
|---|---|
| Patients | 75 |
| Total drug cost | $563,922 |
| Generic share | 93% of claims |
Industry payments (Open Payments)
- 2025$188.76 · 7 payments from 2 companies
- 2024$22.02 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $164.15 | 6 |
| Abbvie Inc. | $24.61 | 1 |
What the 2025 payments were for
- Food and Beverage$188.76 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 36 psychiatric nurse practitioners in Santa Rosa · All psychiatric nurse practitioners in California