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
301	Van Provider	1,842	344600000X
302	Art Therapist	1,832	221700000X
303	Oncology Pharmacist	1,820	1835X0200X
304	Corneal & Contact Management Optometrist	1,818	152WC0802X
305	Air Carrier	1,790	343800000X
306	Neuroradiology	1,776	2085N0700X
307	Rehabilitation Unit	1,775	273Y00000X
308	Dental Public Health	1,773	1223D0001X
309	Emergency Medical Technician, Basic	1,749	146N00000X
310	Pediatric Pulmonology	1,716	2080P0214X
311	Hospice and Palliative Medicine	1,697	207QH0002X
312	Veterinarian	1,678	174M00000X
313	Pediatric Surgery	1,674	2086S0120X
314	Methadone Clinic	1,672	261QM2800X
315	Allergy	1,660	207KA0200X
316	Central Pharmacy	1,652	3336C0002X
317	Sports Medicine (PM&R)	1,634	2081S0010X
318	Clinical Pathology/Laboratory Medicine	1,620	207ZP0105X
319	Trauma Surgery	1,602	2086S0127X
320	Respiratory Therapist, Certified	1,602	227800000X
321	Pediatric Infectious Diseases	1,599	2080P0208X
322	Addiction Medicine (Family Practice)	1,593	207QA0401X
323	Emergency Medical Technician, Intermediate	1,575	146L00000X
324	Rural Ambulance	1,569	3104A0625X
325	Sports Medicine (Orthopaedic)	1,559	207XS0114X
326	Transportation Network Company	1,553	342000000X
327	Developmental-Behavioral Pediatrics	1,540	2080P0006X
328	Electrodiagnostic Medicine	1,534	204D00000X
329	Hematology & Oncology	1,530	207RH0000X
330	Orthotic Fitter	1,514	242T00000X
331	Preventive Medicine	1,513	2083P0500X
332	VA Clinic	1,511	261QV0200X
333	Magnetic Resonance Imaging (MRI) Clinic	1,508	261QM1200X
334	Nutrition (Chiropractor)	1,501	111NN1001X
335	Independent Duty Medical Technician	1,491	1710I1003X
336	Adult Health Clinical Nurse Specialist	1,461	364SA2200X
337	Critical Care Nurse Practitioner	1,450	363LC0200X
338	Pain Clinic	1,441	261QP3300X
339	Orthopedic (Chiropractor)	1,421	111NX0800X
340	Critical Care Medicine (Anesthesiology)	1,413	207LC0200X
341	Emergency Care Center	1,406	261QE0002X
342	Birthing Center	1,373	261QB0400X
343	Transportation Broker	1,369	347E00000X
344	Pediatric Nutrition	1,365	133VN1004X
345	Home Infusion Therapy Pharmacy	1,346	3336H0001X
346	Psychiatric/Mental Health Nurse	1,341	163WP0807X
347	Psychoanalyst	1,334	102L00000X
348	Specialty Pharmacy	1,332	3336S0011X
349	Body Imaging	1,316	2085B0100X
350	Psychiatric/Mental Health, Community CNS	1,308	364SP0808X

Data sourced from the NPPES National Provider Identifier Registry.