Diana E. Armstrong, APRN-BC
NPI 1295841484ActiveIndividual· Nurse Practitioner, Adult Health· Saint Louis, MO
Nurse Practitioner, Adult Health (APRN-BC) with Mercy Clinic Surgical Specialists LLC, practicing in Saint Louis, Missouri. 68 Medicare patients in 2024, $7,624 paid; all of their 96 Part D prescriptions were generic. Stryker Corporation was the largest of 2 companies reporting payments in 2025, $45.02 in all, mostly food and beverage. Lists Mercy Hospital St Louis as a hospital affiliation.
Overview
| NPI | 1295841484 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN-BC |
| Sole proprietor | No |
| NPI issued | Aug 21, 2006 |
| Last updated in NPPES | Oct 27, 2022 |
| Certified by provider | Oct 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Adult Health Primary | 363LA2200X | 100571 | 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 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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 131 across 21 procedure codes |
| Paid by Medicare | $7,624 |
Part D prescriptions in 2024
| Prescriptions (claims) | 96 · 98 30-day fills |
|---|---|
| Patients | 47 |
| Total drug cost | $317.55 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Mercy Clinic Surgical Specialists LLCSaint Louis, MO · 182 clinicians
Hospital affiliation
- Mercy Hospital St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$45.02 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $28.17 | 1 |
| Bioventus LLC | $16.85 | 1 |
What the 2025 payments were for
- Food and Beverage$45.02 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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