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Healthcare providers in Arizona: NPI counts by specialty

This page summarizes active National Provider Identifier (NPI) records with a practice location in Arizona, using the CMS NPPES registry. It provides a view of provider records listed in the state and identifies the specialties with the largest counts. The leading specialties are Pharmacist (6,952), Behavior Technician (6,599), Physical Therapist (5,746), Family Nurse Practitioner (5,580), and Speech-Language Pathologist (4,539).

Statewide totals

Active NPI records168,597
Registered sole proprietors39,869 (23.6%)

Arizona has 39,869 records, or 23.6%, flagged as sole proprietors. This flag is self-reported and is an imperfect proxy for private practice, so the share should not be treated as a direct count of independently owned practices or practitioners.

Largest specialties in this state

SpecialtyActive NPIs
Pharmacist6,952
Behavior Technician6,599
Physical Therapist5,746
Family Nurse Practitioner5,580
Speech-Language Pathologist4,539
Student in an Organized Health Care Education/Training Program4,293
Family Medicine Physician4,259
Internal Medicine Physician4,243
Registered Nurse3,883
Mental Health Counselor3,821
General Practice Dentistry3,808
Chiropractor3,369
Physician Assistant3,313
Clinical Social Worker3,084
Professional Counselor2,841
Dentist2,665
Speech-Language Assistant2,396
Occupational Therapist2,220
Community/Behavioral Health Agency2,048
Anesthesiology Physician2,035
Optometrist1,905
Psychiatric/Mental Health Nurse Practitioner1,797
Durable Medical Equipment & Medical Supplies1,790
Behavior Analyst1,681
Social Worker1,679
Pediatrics Physician1,647
Specialist1,637
Emergency Medicine Physician1,505
Counselor1,499
School Registered Nurse1,499
Registered Dietitian1,463
Nurse Practitioner1,392
Addiction (Substance Use Disorder) Counselor1,359
Home Health Agency1,293
Massage Therapist1,231
Assisted Living Facility1,188
Psychiatry Physician1,134
Naturopath1,128
Surgery Physician1,102
Medical Physician Assistant1,093

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions

How many active NPI records have a practice location in Arizona?

There are 168,597 active NPI records with a practice location in Arizona.

What does the sole-proprietor share indicate?

A total of 39,869 records, or 23.6%, are flagged as sole proprietors. The flag is self-reported and is an imperfect proxy for private practice.

Which specialties have the largest counts?

The largest listed specialties are Pharmacist (6,952), Behavior Technician (6,599), Physical Therapist (5,746), Family Nurse Practitioner (5,580), and Speech-Language Pathologist (4,539).

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