Sarah Chalk, APRN, FNP-BC
NPI 1104590801ActiveIndividual· Nurse Practitioner, Family· Union, MO
Nurse Practitioner, Family (APRN, FNP-BC) with Mercy Clinic East Communities, practicing in Union, Missouri. Their prescriptions cost Medicare Part D more than their services did: $22,884 for 444 claims, against $3,975 paid for services in 2024. Novo Nordisk Inc was the largest of 20 companies reporting payments in 2025, $677.97 in all, mostly food and beverage. Lists Mercy Hospital Washington as a hospital affiliation.
Overview
| NPI | 1104590801 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN, FNP-BC |
| Sole proprietor | No |
| NPI issued | Aug 5, 2021 |
| Last updated in NPPES | Jun 24, 2024 |
| Certified by provider | Jun 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 2021027709 | MO |
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) | Enrolled Practitioner - Nurse Practitioner (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 27 |
|---|---|
| Services billed | 73 across 19 procedure codes |
| Paid by Medicare | $3,975 |
Part D prescriptions in 2024
| Prescriptions (claims) | 444 · 728 30-day fills |
|---|---|
| Patients | 119 |
| Total drug cost | $22,884 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Mercy Clinic East CommunitiesSaint Louis, MO · 571 clinicians
Hospital affiliation
- Mercy Hospital WashingtonWashington, MO
Industry payments (Open Payments)
- 2025$677.97 · 34 payments from 20 companies
- 2024$737.83 · 39 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $113.84 | 6 |
| Exact Sciences Corporation | $54.72 | 3 |
| Collegium Pharmaceutical, Inc. | $53.23 | 3 |
| Otsuka America Pharmaceutical, Inc. | $42.54 | 2 |
| Lilly USA, LLC | $39.01 | 2 |
What the 2025 payments were for
- Food and Beverage$677.97 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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