Mark Willis, FNP
NPI 1154838886ActiveIndividual· Nurse Practitioner, Family· Pocatello, ID
Nurse Practitioner, Family (FNP) with Optimum Health PLLC, practicing in Pocatello, Idaho. Their prescriptions cost Medicare Part D more than their services did: $229,813 for 3,364 claims, against $61,032 paid for services in 2024. Mimedx Group, Inc. reported $114.05 in payments in 2025, mostly food and beverage. Lists Portneuf Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1154838886 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Jan 3, 2018 |
| Last updated in NPPES | May 18, 2021 |
| Certified by provider | May 18, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 57490 | ID |
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 (ID) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 245 |
|---|---|
| Services billed | 918 across 29 procedure codes |
| Paid by Medicare | $61,032 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,364 · 3,823 30-day fills |
|---|---|
| Patients | 254 |
| Total drug cost | $229,813 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Optimum Health PLLCPocatello, ID · 9 clinicians
Hospital affiliations
- Portneuf Medical CenterPocatello, ID
- Power County Hospital DistrictAmerican Falls, ID
Other facilities
- Eden Home Health -IdahofallsHome health agency · Idaho Falls, ID
- Heritage Home HealthHome health agency · Pocatello, ID
- Symbii Home HealthHome health agency · Chubbuck, ID
Industry payments (Open Payments)
- 2025$114.05 · 2 payments from 1 company
- 2024$65.08 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mimedx Group, Inc. | $114.05 | 2 |
What the 2025 payments were for
- Food and Beverage$114.05 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 82 family nurse practitioners in Pocatello · All family nurse practitioners in Idaho