Dave Fields, PMHNP
NPI 1598423964ActiveIndividual· Nurse Practitioner, Psych/Mental Health· Mililani, HI
Nurse Practitioner, Psych/Mental Health (PMHNP) with Fields Psychiatric Consultants LLC, practicing in Mililani, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $435,551 for 1,490 claims, against $19,307 paid for services in 2024. Alkermes, Inc. was the largest of 13 companies reporting payments in 2025, $1,433 in all, mostly food and beverage.
Overview
| NPI | 1598423964 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PMHNP |
| Sole proprietor | No |
| NPI issued | Dec 2, 2021 |
| Last updated in NPPES | Feb 10, 2023 |
| Certified by provider | Feb 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Psych/Mental Health Primary | 363LP0808X | 3456 | HI |
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 - Nurse Practitioner (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 55 |
|---|---|
| Services billed | 370 across 15 procedure codes |
| Paid by Medicare | $19,307 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,490 · 1,921 30-day fills |
|---|---|
| Patients | 114 |
| Total drug cost | $435,551 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Fields Psychiatric Consultants LLCMililani, HI · 14 clinicians
Industry payments (Open Payments)
- 2025$1,433 · 57 payments from 13 companies
- 2024$1,171 · 30 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alkermes, Inc. | $378.17 | 14 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | $341.09 | 4 |
| Abbvie Inc. | $193.63 | 9 |
| Teva Pharmaceuticals USA, Inc. | $141.22 | 10 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $139.55 | 10 |
What the 2025 payments were for
- Food and Beverage$1,433 · 57 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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