NPI Providers by Specialty

Browse healthcare providers in the NPI registry by specialty, ordered by how many providers use each one. Choose a specialty to see its directory — NPI numbers, taxonomy codes, and practice locations by state and city — from the public CMS NPPES data file.

• Nurse Practitioner (2,403)
• Counselor (2,202)
• Behavior Technician (2,110)
• Student in an Organized Health Care Education/Training Program (1,974)
• Internal Medicine (1,886)
• Social Worker (1,626)
• Dentist (969)
• Family Medicine (865)
• Clinic/Center (829)
• Registered Nurse (819)
• Physician Assistant (772)
• Psychiatry & Neurology (708)
• Physical Therapist (662)
• Pharmacist (616)
• Pediatrics (557)
• Behavior Analyst (505)
• Speech-Language Pathologist (490)
• Emergency Medicine (445)
• Pharmacy (421)
• Psychologist (419)
• Radiology (399)
• Occupational Therapist (374)
• Case Manager/Care Coordinator (356)
• Marriage & Family Therapist (334)
• Technician (302)
• Anesthesiology (273)
• Durable Medical Equipment & Medical Supplies (273)
• Surgery (262)
• Obstetrics & Gynecology (256)
• Nurse Anesthetist, Certified Registered (255)
• Optometrist (251)
• Orthopaedic Surgery (203)
• Dietitian, Registered (198)
• Community/Behavioral Health (193)
• In Home Supportive Care (190)
• Hospitalist (189)
• Home Health (179)
• Chiropractor (177)
• Hearing Instrument Specialist (157)
• Massage Therapist (153)
• Ophthalmology (150)
• Skilled Nursing Facility (149)
• Peer Specialist (137)
• Doula (135)
• Home Health Aide (135)
• Community Health Worker (135)
• Day Training/Habilitation Specialist (130)
• Dermatology (123)
• Podiatrist (116)
• Licensed Practical Nurse (112)
• Physical Medicine & Rehabilitation (103)
• Specialist/Technologist (99)
• Non-emergency Medical Transport (VAN) (98)
• General Practice (96)
• Pathology (87)
• Urology (85)
• Otolaryngology (82)
• Audiologist (81)
• Assistant Behavior Analyst (76)
• Hospice Care, Community Based (73)
• General Acute Care Hospital (73)
• Homemaker (72)
• Specialist (71)
• Assisted Living Facility (68)
• Adult Companion (65)
• Acupuncturist (63)
• Community Based Residential Treatment Facility, Intellectual and/or Developmental Disabilities (54)
• Physical Therapy Assistant (53)
• Rehabilitation Practitioner (52)
• Neurological Surgery (50)
• Clinical Medical Laboratory (49)
• Nurse's Aide (48)
• Advanced Practice Midwife (47)
• Case Management (47)
• Occupational Therapy Assistant (44)
• Ambulance (43)
• Licensed Vocational Nurse (41)
• Day Training, Developmentally Disabled Services (40)
• Intermediate Care Facility, Intellectual Disabilities (40)
• Plastic Surgery (38)
• Military Health Care Provider (36)
• Substance Abuse Rehabilitation Facility (35)
• Dental Hygienist (34)
• Specialist/Technologist, Other (31)
• Pain Medicine (30)
• Clinical Nurse Specialist (30)
• Health & Wellness Coach (29)
• Prosthetic/Orthotic Supplier (27)
• Preventive Medicine (25)
• Thoracic Surgery (Cardiothoracic Vascular Surgery) (25)
• Developmental Therapist (25)
• Community Based Residential Treatment Facility, Mental Illness (25)
• Anesthesiologist Assistant (24)
• Midwife (22)
• Allergy & Immunology (21)
• Pharmacy Technician (21)
• Chore Provider (20)
• Health Educator (19)
• Contractor (18)
• Genetic Counselor, MS (18)
• Nutritionist (17)
• Technician/Technologist (17)
• Clinical Neuropsychologist (16)
• Driver (16)
• Oral & Maxillofacial Surgery (15)
• Emergency Medical Technician, Paramedic (15)
• Naturopath (15)
• Nursing Care (15)
• Public Health or Welfare (15)
• Custodial Care Facility (15)
• Colon & Rectal Surgery (14)
• Interpreter (14)
• Respite Care (14)
• Audiologist-Hearing Aid Fitter (13)
• Technician, Pathology (13)
• Early Intervention Provider Agency (13)
• Lactation Consultant, Non-RN (12)
• Emergency Medical Technician, Basic (11)
• Residential Treatment Facility, Intellectual and/or Developmental Disabilities (11)
• Private Vehicle (11)
• Secured Medical Transport (VAN) (9)
• Transplant Surgery (8)
• Transportation Network Company (8)
• Nuclear Medicine (7)
• Respiratory Therapist, Registered (7)
• Technician, Other (7)
• Local Education Agency (LEA) (7)
• Residential Treatment Facility, Emotionally Disturbed Children (7)
• Eyewear Supplier (7)
• Drama Therapist (6)
• Radiologic Technologist (6)
• Music Therapist (5)
• Prosthetist (5)
• Perfusionist (5)
• Specialist/Technologist, Pathology (5)
• Supports Brokerage (5)
• Nursing Facility/Intermediate Care Facility (5)
• Home Delivered Meals (5)
• Non-Pharmacy Dispensing Site (5)
• Clinical Pharmacology (4)
• Legal Medicine (4)
• Medical Genetics (4)
• Prevention Professional (4)
• Foster Care Agency (4)
• Long Term Care Hospital (4)
• Psychiatric Hospital (4)
• Meals (4)
• Psychiatric Residential Treatment Facility (4)
• Rehabilitation Counselor (3)
• Home Infusion (3)
• Medicare Defined Swing Bed Unit (3)
• Physiological Laboratory (3)
• Health Maintenance Organization (3)
• Lodging (3)
• Portable X-ray and/or Other Portable Diagnostic Imaging Supplier (3)
• Taxi (3)
• Transportation Broker (3)
• Neuromusculoskeletal Medicine & OMM (2)
• Phlebology (2)
• Psychoanalyst (2)
• Dental Assistant (2)
• Community Paramedic (2)
• Emergency Medical Technician, Intermediate (2)
• Licensed Psychiatric Technician (2)
• Nursing Home Administrator (2)
• Homeopath (2)
• Clinical Exercise Physiologist (2)
• Kinesiotherapist (2)
• Orthotic Fitter (2)
• Respiratory Therapist, Certified (2)
• Specialist/Technologist Cardiovascular (2)
• Technician, Health Information (2)
• Rehabilitation Unit (2)
• Intermediate Care Facility, Mental Illness (2)
• Emergency Response System Companies (2)
• Indian Health Service/Tribal/Urban Indian Health (I/T/U) Pharmacy (2)
• Military/U.S. Coast Guard Pharmacy (2)
• Independent Medical Examiner (1)
• Integrative Medicine (1)
• Neuromusculoskeletal Medicine, Sports Medicine (1)
• Advanced Practice Dental Therapist (1)
• Dietetic Technician, Registered (1)
• Personal Emergency Response Attendant (1)
• Religious Nonmedical Practitioner (1)
• Clinical Ethicist (1)
• Midwife, Lay (1)
• Medical Genetics, Ph.D. Medical Genetics (1)
• Reflexologist (1)
• Art Therapist (1)
• Orthotist (1)
• Recreation Therapist (1)
• Specialist/Technologist, Health Information (1)
• Voluntary or Charitable (1)
• Military Hospital (1)
• Rehabilitation Hospital (1)
• Exclusive Provider Organization (1)
• Preferred Provider Organization (1)
• Alzheimer Center (Dementia Center) (1)
• Residential Treatment Facility, Physical Disabilities (1)
• Medical Foods Supplier (1)

Source: CMS NPPES (public data). Snapshot 2026-07-09.