Diane C. Downing, MD
NPI 1366497786ActiveIndividual· Family Medicine· Green Valley, AZ
Opted out of Medicare from March 2017 to March 2027. Family Medicine (MD) in Green Valley, Arizona, licensed in AZ, with an NPI issued in May 2006. Part D covered 171 prescriptions written in 2024, 72% of them generic.
Overview
| NPI | 1366497786 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 24, 2006 |
| Last updated in NPPES | Aug 30, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 33052 | AZ |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Mar 1, 2017 – Mar 1, 2027 |
| Can order and refer | Yes |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Part D prescriptions in 2024
| Prescriptions (claims) | 171 · 269 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $23,724 |
| Generic share | 72% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 family medicine physicians in Green Valley · All family medicine physicians in Arizona