Ngozi Adamma Osondu, M.D
NPI 1598778177ActiveIndividual· Internal Medicine, Infectious Disease· Phoenix, AZ
Internal Medicine, Infectious Disease (M.D) with Zion Specialty PLLC and 1 other group, practicing in Phoenix, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,419,605 for 1,352 claims, against $185,787 paid for services in 2024. Astellas Pharma US Inc was the largest of 10 companies reporting payments in 2025, $801.06 in all, mostly food and beverage. Lists Banner - University Medical Center Phoenix and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1598778177 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | Yes |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Feb 26, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 31628 | 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) | Enrolled Practitioner - Infectious Disease (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 508 |
|---|---|
| Services billed | 2,003 across 16 procedure codes |
| Paid by Medicare | $185,787 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,352 · 1,495 30-day fills |
|---|---|
| Patients | 196 |
| Total drug cost | $1,419,605 |
| Generic share | 68% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Zion Specialty PLLCPhoenix, AZ · 12 clinicians
- Glendale Infectious Diseases PLLCGlendale, AZ · 4 clinicians
Hospital affiliations
- Banner - University Medical Center PhoenixPhoenix, AZ
- Banner del E. Webb Medical CenterSun City West, AZ
- Banner Thunderbird Medical CenterGlendale, AZ
- St Josephs Hospital and Medical CenterPhoenix, AZ
Industry payments (Open Payments)
- 2025$801.06 · 41 payments from 10 companies
- 2024$461.76 · 22 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $218.22 | 4 |
| Insmed, Inc. | $166.81 | 13 |
| Viiv Healthcare Company | $156.68 | 10 |
| Gilead Sciences, Inc. | $134.69 | 7 |
| Shionogi Inc | $29.01 | 2 |
What the 2025 payments were for
- Food and Beverage$642.07 · 39 payments
- Education$158.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other infectious disease specialists in Phoenix
- 1023222619
- 1093769689
- 1154532927
- 1174500565
- 1285839795
- 1376796599
- 1417167313
- 1467597575
- 1477525822
- 1508867839
- 1528374303
- 1558679142
All 84 infectious disease specialists in Phoenix · All infectious disease specialists in Arizona