Specialties in ON

60 specialties represented among NPPES-registered providers in ON. Counts reflect providers with a ON practice address.

Rank	Specialty	Providers in ON	Taxonomy Code
1	Family Medicine	10	207Q00000X
2	Student (Health Education/Training)	10	390200000X
3	Diagnostic Radiology	5	2085R0202X
4	Registered Dietitian	4	133V00000X
5	Dentist	3	122300000X
6	General Dentistry	3	1223G0001X
7	Otolaryngology	3	207Y00000X
8	Psychiatry	3	2084P0800X
9	Mental Health Counselor	2	101YM0800X
10	Chiropractor	2	111N00000X
11	Hematology	2	207RH0003X
12	Ophthalmology	2	207W00000X
13	Anatomic Pathology	2	207ZP0101X
14	Pediatrics	2	208000000X
15	General Surgery	2	208600000X
16	General Practice	2	208D00000X
17	Speech, Language and Hearing Specialist	2	235Z00000X
18	Family Nurse Practitioner	2	363LF0000X
19	Professional Counselor	1	101YP2500X
20	Clinical Psychologist	1	103TC0700X
21	Clinical Social Worker	1	1041C0700X
22	Marriage & Family Therapist	1	106H00000X
23	Endodontics	1	1223E0200X
24	Periodontology	1	1223P0300X
25	Oral & Maxillofacial Surgery	1	1223S0112X
26	Orthodontics	1	1223X0400X
27	Nutritionist	1	133N00000X
28	Sports Dietetics	1	133VN1501X
29	Registered Nurse	1	163W00000X
30	Genetic Counselor	1	170300000X
31	Health & Wellness Coach	1	171400000X
32	Specialist	1	174400000X
33	Health Educator	1	174H00000X
34	Naturopath	1	175F00000X
35	Pharmacist	1	183500000X
36	Anesthesiology	1	207L00000X
37	Emergency Medicine	1	207P00000X
38	Sports Medicine	1	207QS0010X
39	Internal Medicine	1	207R00000X
40	Cardiovascular Disease	1	207RC0000X
41	Gastroenterology	1	207RG0100X
42	Infectious Disease	1	207RI0200X
43	Neurological Surgery	1	207T00000X
44	Obstetrics & Gynecology	1	207V00000X
45	Gynecology	1	207VG0400X
46	Orthopaedic Surgery	1	207X00000X
47	Orthopaedic Surgery of the Hand	1	207XS0117X
48	Anatomic Pathology & Clinical Pathology	1	207ZP0102X
49	Plastic Surgery	1	208200000X
50	Neurology	1	2084N0400X