Diana Charlson
NPI 1689129116ActiveIndividual· Nurse Practitioner, Family· Sheridan, WY
Nurse Practitioner, Family with Big Horn Health Network, practicing in Sheridan, Wyoming. Their prescriptions cost Medicare Part D more than their services did: $823,766 for 7,731 claims, against $170,937 paid for services in 2024. Lilly USA, LLC was the largest of 11 companies reporting payments in 2025, $795.80 in all, mostly food and beverage. Lists Billings Clinic Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1689129116 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Aug 25, 2016 |
| Last updated in NPPES | Oct 17, 2025 |
| Certified by provider | Oct 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 27134.1541 | WY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nurse Practitioner (WY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 504 |
|---|---|
| Services billed | 2,244 across 51 procedure codes |
| Paid by Medicare | $170,937 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,731 · 18,674 30-day fills |
|---|---|
| Patients | 540 |
| Total drug cost | $823,766 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Big Horn Health NetworkSheridan, WY · 91 clinicians
Hospital affiliations
- Billings Clinic HospitalBillings, MT
- Sheridan Memorial HospitalSheridan, WY
Other facilities
- Sheridan Memorial Hospital Home CareHome health agency · Sheridan, WY
Industry payments (Open Payments)
- 2025$795.80 · 44 payments from 11 companies
- 2024$314.64 · 17 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $166.85 | 17 |
| Astrazeneca Pharmaceuticals LP | $156.32 | 13 |
| Madrigal Pharmaceuticals | $120.00 | 1 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $79.90 | 3 |
| Insulet Corporation | $71.81 | 1 |
What the 2025 payments were for
- Food and Beverage$774.81 · 42 payments
- Education$20.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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