Debra Shannon Witthar, BSN, MSN, DNP
NPI 1760090427ActiveIndividual· Nurse Practitioner, Gerontology· Sun City, AZ
Nurse Practitioner, Gerontology (BSN, MSN, DNP) in Sun City, Arizona, licensed in AZ, with an NPI issued in July 2020. Part D covered 161 prescriptions written in 2024, 76% of them generic. Mdd US Operations, LLC was the largest of 4 companies reporting payments in 2025, $3,009 in all, mostly honoraria.
Overview
| NPI | 1760090427 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | BSN, MSN, DNP |
| Sole proprietor | No |
| NPI issued | Jul 20, 2020 |
| Last updated in NPPES | Jul 20, 2020 |
| Certified by provider | Jul 20, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Gerontology Primary | 363LG0600X | 243265 | 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 (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 161 · 413 30-day fills |
|---|---|
| Patients | 77 |
| Total drug cost | $170,327 |
| Generic share | 76% of claims |
Industry payments (Open Payments)
- 2025$3,009 · 15 payments from 4 companies
- 2024$1,621 · 10 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mdd US Operations, LLC | $1,787 | 10 |
| Tanabe Pharma America, Inc. | $1,027 | 3 |
| Abbott Laboratories | $136.26 | 1 |
| Acadia Pharmaceuticals Inc | $59.04 | 1 |
What the 2025 payments were for
- Honoraria$1,170 · 2 payments
- Consulting Fee$915.00 · 2 payments
- Food and Beverage$559.80 · 9 payments
- Travel and Lodging$364.62 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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