Haley Joy Lammers, DNP
NPI 1588344329ActiveIndividual· Nurse Practitioner, Family· Marion, IA
Nurse Practitioner, Family (DNP) in Marion, Iowa, licensed in IA, with an NPI issued in July 2023. 319 Medicare patients in 2024, $18,290 paid; nearly all of their 498 Part D prescriptions were generic (97%). Astellas Pharma US Inc reported $28.45 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1588344329 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DNP |
| Sole proprietor | Yes |
| NPI issued | Jul 18, 2023 |
| Last updated in NPPES | Jul 27, 2023 |
| Certified by provider | Jul 27, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | A175489 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 319 |
|---|---|
| Services billed | 585 across 30 procedure codes |
| Paid by Medicare | $18,290 |
Part D prescriptions in 2024
| Prescriptions (claims) | 498 · 500 30-day fills |
|---|---|
| Patients | 371 |
| Total drug cost | $4,539 |
| Generic share | 97% of claims |
Industry payments (Open Payments)
- 2025$28.45 · 1 payment from 1 company
- 2024$23.27 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $28.45 | 1 |
What the 2025 payments were for
- Food and Beverage$28.45 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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