David M. McCaskill, FNP-C, ACNP
NPI 1558353169ActiveIndividual· Nurse Practitioner· Tyler, TX
Nurse Practitioner (FNP-C, ACNP) with Christus Trinity Clinic Texas, practicing in Tyler, Texas. Their prescriptions cost Medicare Part D more than their services did: $252,288 for 1,097 claims, against $18,787 paid for services in 2024. Impulse Dynamics (USA) Inc. was the largest of 10 companies reporting payments in 2025, $13,456 in all, mostly honoraria. Lists Christus Mother Frances Hospital as a hospital affiliation.
Overview
| NPI | 1558353169 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C, ACNP |
| Sole proprietor | No |
| NPI issued | Aug 19, 2005 |
| Last updated in NPPES | Jul 7, 2023 |
| Certified by provider | Jul 7, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 568154 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 159 |
|---|---|
| Services billed | 352 across 15 procedure codes |
| Paid by Medicare | $18,787 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,097 · 2,404 30-day fills |
|---|---|
| Patients | 228 |
| Total drug cost | $252,288 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Christus Trinity Clinic TexasTyler, TX · 1,540 clinicians
Hospital affiliation
- Christus Mother Frances HospitalTyler, TX
Industry payments (Open Payments)
- 2025$13,456 · 64 payments from 10 companies
- 2024$5,695 · 84 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Impulse Dynamics (USA) Inc. | $6,640 | 20 |
| Pfizer Inc. | $3,867 | 13 |
| Cvrx, Inc. | $1,761 | 13 |
| Abbott Laboratories | $635.62 | 9 |
| Astrazeneca Pharmaceuticals LP | $171.91 | 2 |
What the 2025 payments were for
- Honoraria$4,750 · 4 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,800 · 2 payments
- Food and Beverage$2,571 · 47 payments
- Travel and Lodging$2,315 · 10 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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