Dr. John Callahan
NPI: 1851704480
Dr. John Callahan is a Physician/Pediatric Medicine specialist focused health provider in Dubuque, Iowa. affiliates with no hospitals or medical groups. Call Dr. John Callahan on phone number 5635843440 for more information and advice or to book an appointment.
| City | Dubuque |
| State | Iowa |
| Address 1 | 1000 LANGWORTHY ST |
| Postal Code | 52002 |
| Phone | 5635843440 |
| Fax | 5635843009 |
| Primary Specialty | Physician/Pediatric Medicine |