Workforce
New doctors and clinicians
524,852 clinicians registered a new NPI from Nov 2025 to Oct 2026, 4% more than the 12 months before. The busiest month was April.
Every clinician who bills or prescribes needs a National Provider Identifier (NPI). New NPIs mostly belong to people entering practice: new nurse practitioners, therapists, counselors and other clinicians, and doctors starting residency. Residents usually register as students, so few new NPIs are listed under a physician specialty at first.
New registrations by month
What they do
- Mental Health Counselors 22,402
- Nurse Practitioners 20,915
- Pharmacists 14,888
- Speech-Language Pathologists 14,634
- Physical Therapists 13,361
- Clinical Social Workers 13,043
- Physician Assistants 10,000
- Occupational Therapists 8,321
- Psychologists 6,867
- Addiction Counselors 6,154
- Psychiatric Nurse Practitioners 6,104
- Professional Counselors 5,834
- Registered Dietitians 5,808
- Behavior Analysts 5,659
- Marriage & Family Therapists 4,698
Primary specialty registered, Nov 2025 to Oct 2026.
Moves between states
We started tracking practice addresses each month in November 2026. Moves appear here after the next monthly update, and build into a history from then on.
By state
New registrations in the last 12 months divided by all individual clinicians with a practice address in the state: a rough measure of how fast each state’s workforce is growing.
Source: CMS NPPES NPI Registry, monthly full file. Counts are individual clinicians whose NPI is active, by the month the NPI was first issued; deactivated NPIs are not counted.