9 cities with NPPES-registered healthcare providers in APO. Counts reflect providers with a APO practice address in the federal registry.
| Rank | City | Providers in APO |
|---|---|---|
| 1 | Apo | 3 |
| 2 | Ae | 2 |
| 3 | Raf Lakenheath | 2 |
| 4 | Heidelberg | 1 |
| 5 | Lakenheath | 1 |
| 6 | Bamberg | 1 |
| 7 | Camp Zama | 1 |
| 8 | Landstuhl | 1 |
| 9 | Pyongtaek | 1 |