Karen Denise Zunker, APRN
NPI 1629578018ActiveIndividual· Nurse Practitioner, Family· San Marcos, TX
Nurse Practitioner, Family (APRN) with Texas Oncology PA, practicing in San Marcos, Texas. Their prescriptions cost Medicare Part D more than their services did: $149,321 for 532 claims, against $43,889 paid for services in 2024. Lilly USA, LLC reported $15.30 in payments in 2025, mostly food and beverage. Lists Christus Santa Rosa Hospital-San Marcos and 1 other hospital as hospital affiliations.
Overview
| NPI | 1629578018 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | APRN |
| Sole proprietor | No |
| NPI issued | Feb 13, 2018 |
| Last updated in NPPES | Aug 4, 2021 |
| Certified by provider | Aug 4, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | AP141056 | TX |
| Nurse Practitioner | 363L00000X | 127165 | OK |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 344 |
|---|---|
| Services billed | 1,607 across 37 procedure codes |
| Paid by Medicare | $43,889 |
Part D prescriptions in 2024
| Prescriptions (claims) | 532 · 603 30-day fills |
|---|---|
| Patients | 167 |
| Total drug cost | $149,321 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical group
- Texas Oncology PAPlano, TX · 1,014 clinicians
Hospital affiliations
- Christus Santa Rosa Hospital-San MarcosSan Marcos, TX
- Guadalupe Regional Medical CenterSeguin, TX
Industry payments (Open Payments)
- 2025$15.30 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $15.30 | 1 |
What the 2025 payments were for
- Food and Beverage$15.30 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family nurse practitioners in San Marcos
- 1093045692
- 1154447852
- 1255080354
- 1326663857
- 1437842085
- 1508248410
- 1518674571
- 1609572056
- 1710543939
- 1801398235
- 1952608770
- 1952798779
All 58 family nurse practitioners in San Marcos · All family nurse practitioners in Texas