NPI numbers in Ohio
407,377 active NPIs list a practice location in Ohio.
341,142 individuals and 66,235 organizations. Ohio ranks #5 of 56 states and territories.
Look up a provider in Ohio
Most common specialties in Ohio
| Primary specialty | Active NPIs | Share |
|---|---|---|
| Case Manager/Care Coordinator | 35,631 | 8.7% |
| Licensed Practical Nurse | 12,724 | 3.1% |
| Student in an Organized Health Care Education/Training Program | 12,329 | 3.0% |
| Addiction (Substance Use Disorder) Counselor | 11,669 | 2.9% |
| Social Worker | 11,544 | 2.8% |
| Home Health Aide | 11,314 | 2.8% |
| Pharmacist | 10,960 | 2.7% |
| Clinical Social Worker | 10,862 | 2.7% |
| Family Nurse Practitioner | 9,896 | 2.4% |
| Home Health Agency | 9,852 | 2.4% |
| Registered Nurse | 9,795 | 2.4% |
| Mental Health Counselor | 8,871 | 2.2% |
| Physical Therapist | 8,043 | 2.0% |
| Speech-Language Pathologist | 8,041 | 2.0% |
| Behavior Technician | 7,625 | 1.9% |
Counts are active NPIs in the NPPES file of September 13, 2026, by the state of the practice location and each provider's primary specialty. They count records, not practicing clinicians.