Katherine M. Williams, FNP-C
NPI 1528437936ActiveIndividual· Nurse Practitioner, Family· Joplin, MO
Nurse Practitioner, Family (FNP-C) with Mercy Clinic Springfield Communities and 1 other group, practicing in Joplin, Missouri. Their prescriptions cost Medicare Part D more than their services did: $102,279 for 1,778 claims, against $2,044 paid for services in 2024. Merck Sharp & Dohme LLC reported $13.91 in payments in 2025, mostly food and beverage. Lists Cedar County Memorial Hospital as a hospital affiliation.
Overview
| NPI | 1528437936 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Sep 16, 2015 |
| Last updated in NPPES | Jun 5, 2023 |
| Certified by provider | Jun 5, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 2015032915 | MO |
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 (KS); Practitioner - Nurse Practitioner (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 74 across 22 procedure codes |
| Paid by Medicare | $2,044 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,778 · 2,593 30-day fills |
|---|---|
| Patients | 322 |
| Total drug cost | $102,279 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Mercy Clinic Springfield CommunitiesLebanon, MO · 1,120 clinicians
- Cedar County Memorial HospitalEl Dorado Springs, MO · 20 clinicians
Hospital affiliation
- Cedar County Memorial HospitalEl Dorado Springs, MO
Industry payments (Open Payments)
- 2025$13.91 · 1 payment from 1 company
- 2024$164.41 · 8 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $13.91 | 1 |
What the 2025 payments were for
- Food and Beverage$13.91 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 104 family nurse practitioners in Joplin · All family nurse practitioners in Missouri