Karen Hatch Drenner, AGACNP-BC
NPI 1548872641ActiveIndividual· Nurse Practitioner, Acute Care· Tucson, AZ
Nurse Practitioner, Acute Care (AGACNP-BC) with Tmc Medical Network and 1 other group, practicing in Tucson, Arizona. Medicare paid $19,890 for services to 187 patients in 2024. Aimmune Therapeutics, Inc. was the largest of 10 companies reporting payments in 2025, $690.93 in all, mostly food and beverage. Lists Tucson Medical Center as a hospital affiliation.
Overview
| NPI | 1548872641 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | AGACNP-BC |
| Sole proprietor | Yes |
| NPI issued | Aug 19, 2020 |
| Last updated in NPPES | Nov 30, 2023 |
| Certified by provider | Nov 30, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Acute Care Primary | 363LA2100X | 290690 | AZ |
| Registered Nurse, Medical-Surgical | 163WM0705X | RN206413 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 187 |
|---|---|
| Services billed | 303 across 11 procedure codes |
| Paid by Medicare | $19,890 |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical groups
- Tmc Medical NetworkTucson, AZ · 281 clinicians
- Tucson Gastroenterology Specialists, PCTucson, AZ · 6 clinicians
Hospital affiliation
- Tucson Medical CenterTucson, AZ
Industry payments (Open Payments)
- 2025$690.93 · 31 payments from 10 companies
- 2024$14.09 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aimmune Therapeutics, Inc. | $158.39 | 15 |
| Phathom Pharmaceuticals, Inc. | $147.50 | 2 |
| Janssen Biotech, Inc. | $82.18 | 3 |
| Boston Scientific Corporation | $63.57 | 1 |
| Ardelyx, Inc. | $55.64 | 2 |
What the 2025 payments were for
- Food and Beverage$690.93 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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