April R. Zumwalt, ARNP
NPI 1629375993ActiveIndividual· Nurse Practitioner, Women's Health· Tulsa, OK
Nurse Practitioner, Women's Health (ARNP) with Ahs Oklahoma Physician Group LLC, practicing in Tulsa, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $13,475 for 153 claims, against $3,096 paid for services in 2024. Astellas Pharma US Inc was the largest of 15 companies reporting payments in 2025, $1,038 in all, mostly food and beverage. Lists Hillcrest Hospital South and 1 other hospital as hospital affiliations.
Overview
| NPI | 1629375993 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | ARNP |
| Sole proprietor | No |
| NPI issued | Feb 22, 2011 |
| Last updated in NPPES | Nov 9, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Women's Health Primary | 363LW0102X | 113303 | 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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 46 |
|---|---|
| Services billed | 78 across 12 procedure codes |
| Paid by Medicare | $3,096 |
Part D prescriptions in 2024
| Prescriptions (claims) | 153 · 239 30-day fills |
|---|---|
| Patients | 57 |
| Total drug cost | $13,475 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Ahs Oklahoma Physician Group LLCTulsa, OK · 313 clinicians
Hospital affiliations
- Hillcrest Hospital SouthTulsa, OK
- Hillcrest Medical CenterTulsa, OK
Industry payments (Open Payments)
- 2025$1,038 · 46 payments from 15 companies
- 2024$1,064 · 60 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $183.64 | 5 |
| Mayne Pharma Commercial LLC | $161.87 | 6 |
| Novo Nordisk Inc | $147.90 | 9 |
| Organon LLC | $90.18 | 4 |
| Lilly USA, LLC | $85.86 | 4 |
What the 2025 payments were for
- Food and Beverage$938.17 · 45 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 20 women's health nurse practitioners in Tulsa · All women's health nurse practitioners in Oklahoma