412 cities with NPPES-registered healthcare providers in Puerto Rico. Counts reflect providers with a Puerto Rico practice address in the federal registry.
| Rank | City | Providers in PR |
|---|---|---|
| 1 | San Juan | 11,665 |
| 2 | Bayamon | 4,093 |
| 3 | Ponce | 4,085 |
| 4 | Caguas | 2,982 |
| 5 | Guaynabo | 2,709 |
| 6 | Carolina | 2,140 |
| 7 | Mayaguez | 2,032 |
| 8 | Arecibo | 1,491 |
| 9 | Manati | 1,084 |
| 10 | Humacao | 1,053 |
| 11 | Aguadilla | 1,000 |
| 12 | Cayey | 693 |
| 13 | Toa Baja | 673 |
| 14 | Trujillo Alto | 597 |
| 15 | Vega Baja | 596 |
| 16 | San German | 586 |
| 17 | Isabela | 577 |
| 18 | Aguada | 571 |
| 19 | Guayama | 559 |
| 20 | Dorado | 556 |
| 21 | San Sebastian | 546 |
| 22 | Fajardo | 538 |
| 23 | Hatillo | 515 |
| 24 | Rio Piedras | 511 |
| 25 | Moca | 497 |
| 26 | Toa Alta | 487 |
| 27 | Yauco | 469 |
| 28 | Juana Diaz | 455 |
| 29 | Aibonito | 420 |
| 30 | Gurabo | 410 |
| 31 | Canovanas | 409 |
| 32 | Cidra | 398 |
| 33 | Vega Alta | 397 |
| 34 | Cabo Rojo | 394 |
| 35 | Hato Rey | 386 |
| 36 | Camuy | 384 |
| 37 | Juncos | 349 |
| 38 | Barceloneta | 344 |
| 39 | Coamo | 317 |
| 40 | Rio Grande | 313 |
| 41 | Naranjito | 310 |
| 42 | Santurce | 304 |
| 43 | Lares | 292 |
| 44 | Las Piedras | 291 |
| 45 | Quebradillas | 282 |
| 46 | Corozal | 281 |
| 47 | Santa Isabel | 280 |
| 48 | Anasco | 261 |
| 49 | Utuado | 261 |
| 50 | Patillas | 245 |