Browse by Specialty

By Count A–Z

Browse all healthcare provider specialties registered in the NPPES database. Specialties are based on NUCC taxonomy codes assigned by each provider at the time of NPI registration.

Rank	Specialty	Providers	Taxonomy Code
351	Portable X-Ray and/or Other Portable Diagnostic Imaging	1,307	335V00000X
352	Geriatric Pharmacist	1,306	1835G0303X
353	Student Health Clinic	1,306	261QS1000X
354	Orthotist	1,303	222Z00000X
355	Comprehensive Outpatient Rehabilitation Facility	1,296	261QR0401X
356	Air Ambulance Transport	1,279	3416A0800X
357	Rehabilitation Hospital	1,271	283X00000X
358	Facial Plastic Surgery	1,245	207YX0905X
359	Psychiatric/Mental Health, Geropsychiatric CNS	1,241	364SP0809X
360	Respite Care (Camp)	1,226	385HR2060X
361	Female Pelvic Medicine	1,225	207VF0040X
362	Organizational & Business Psychologist	1,208	103TM1800X
363	Neurology (Chiropractor)	1,206	111NN0400X
364	Radiology, Except MRI	1,198	261QR0208X
365	Clinical Cardiac Electrophysiology	1,196	207RA0001X
366	Clinic Pharmacy	1,195	3336C0004X
367	Neurology (Occupational Therapy)	1,189	2251N0400X
368	Pediatric Critical Care Nurse Practitioner	1,186	363LP0222X
369	Geriatric Psychiatry	1,167	2084P0805X
370	Environmental Modification (OT)	1,154	2251S0007X
371	Geriatric Psychiatry	1,130	207SG0201X
372	Health Service Psychologist	1,121	103TH0100X
373	Pediatric Nephrology	1,106	2080P0210X
374	Transplant Surgery	1,101	204F00000X
375	Long Term Care Hospital	1,076	282E00000X
376	Radiologic Technologist	1,042	247100000X
377	Orthopaedic Trauma	1,037	207XX0801X
378	Procedural Dermatology	1,035	207NS0135X
379	Clinical Neurophysiology	1,021	2084N0600X
380	Pediatric Orthopaedic Surgery	1,017	207XP3100X
381	Pediatric Radiology	1,012	2085P0229X
382	Health Information Specialist	1,010	247000000X
383	Custodial Care Facility	1,010	311Z00000X
384	Addiction Medicine (Internal Medicine)	1,009	207RA0401X
385	Post-Acute Care Clinic	1,005	261QP0905X
386	Infusion Therapy Clinic	1,004	261QI0500X
387	Diagnostic Ultrasound	993	2085U0001X
388	Podiatric Clinic	991	261QP1100X
389	Psychiatric Pharmacist	988	1835P1300X
390	Sleep Medicine (Otolaryngology)	959	207YS0123X
391	Institutional Pharmacy	956	3336I0012X
392	Sports Medicine (Orthopaedic)	946	207XX0004X
393	Diagnostic Sonographer	937	2471S1302X
394	Pediatric Emergency Medicine	935	207PP0204X
395	Psychiatry & Neurology	934	2084P0802X
396	Physical Disabilities Residential Treatment Facility	915	320700000X
397	Forensic Psychologist	907	103TF0200X
398	Psychoanalysis	901	2084V0102X
399	Orthodontics & Dentofacial Orthopedics	898	1223P0106X
400	Supports Brokerage Agency	896	251X00000X

Data sourced from the NPPES National Provider Identifier Registry.