Specialties
Specialties
Every kind of doctor and clinician in our directory: how many practice in the U.S., where, how long the training takes, and what they treat and prescribe in Medicare.
Every specialty and clinician type
Filter by name or type, and select a column heading to sort. Practicing: clinicians with this primary specialty and a U.S. practice address. Per 100k: per 100,000 residents. Women: share of those with a recorded sex. Years since graduating: the median, among clinicians enrolled in Medicare. Telehealth: share of Medicare-enrolled clinicians who offer it. Training: years after medical or professional school, for physician specialties.
Specialty, sort Type, sort Practicing, sort Per 100k, sort Women, sort Years since graduating, sort Telehealth, sort Training (years), sort
Obesity Medicine Physician
421
0.1
65%
19
62%
3–5
Forensic Pathology Physician
553
0.2
45%
25
—
4–5
Hepatology Physician
568
0.2
39%
20
70%
7
Transplant Surgery Physician
972
0.3
20%
23
14%
7
Dermatopathology Physician
988
0.3
43%
24
3%
5
Pediatric Nephrology Physician
1,002
0.3
58%
21
4%
6
Osteopathic Manipulative Medicine Physician
1,067
0.3
35%
25
10%
3
Medical Genetics Physician
1,079
0.3
54%
23
33%
4–5
Heart Failure & Transplant Cardiology Physician
1,187
0.4
32%
18
51%
7
Developmental-Behavioral Pediatrics Physician
1,226
0.4
73%
21
4%
6
Urogynecology Physician
1,234
0.4
63%
20
51%
7–8
Trauma Surgery Physician
1,346
0.4
34%
16
4%
6–7
Joint Replacement Surgery Physician
1,363
0.4
6%
17
16%
6
Pediatric Surgery Physician
1,464
0.4
32%
22
1%
7
Pediatric Infectious Disease Physician
1,467
0.4
55%
20
2%
6
Nuclear Medicine Physician
1,500
0.4
26%
28
10%
4
Pediatric Pulmonology Physician
1,508
0.4
51%
20
3%
6
Mohs Surgery Physician
1,531
0.5
37%
20
5%
5
Retina Specialist Physician
1,587
0.5
19%
20
1%
6
Neuroradiology Physician
1,589
0.5
18%
21
5%
6–7
Fertility (Reproductive Endocrinology) Physician
1,752
0.5
51%
28
9%
7
Gynecologic Oncology Physician
1,829
0.5
53%
21
56%
7
Hematology Physician
1,909
0.6
40%
22
54%
5
Surgical Oncology Physician
1,920
0.6
43%
20
42%
7
Pediatric Anesthesiology Physician
2,008
0.6
50%
17
0%
5
Pediatric Endocrinology Physician
2,016
0.6
70%
21
3%
6
Sleep Medicine Physician
2,082
0.6
39%
22
69%
4–5
Addiction Medicine Physician
2,255
0.7
37%
21
37%
4–5
Spine Surgery Physician
2,261
0.7
4%
22
30%
6–8
Facial Plastic Surgery Physician
2,316
0.7
20%
23
17%
6
Colorectal Surgery Physician
2,355
0.7
29%
22
33%
6
Pediatric Gastroenterology Physician
2,438
0.7
52%
19
2%
6
Child Neurology Physician
2,631
0.8
55%
19
10%
5
Preventive Medicine & Public Health Physician
2,851
0.8
37%
24
13%
3
Adolescent Medicine Physician
3,044
0.9
60%
26
17%
6
Maternal-Fetal Medicine (High-Risk Pregnancy) Physician
3,179
0.9
56%
22
1%
7
Occupational Medicine Physician
3,325
1.0
31%
28
15%
3
Cardiac Electrophysiology Physician
3,488
1.0
10%
24
39%
7–8
Pediatric Hematology & Oncology Physician
3,556
1.1
57%
19
2%
6
Pediatric Cardiology Physician
3,559
1.1
40%
21
2%
6
Pediatric Critical Care Physician
3,572
1.1
51%
16
0%
6
Pediatric Emergency Medicine Physician
3,693
1.1
61%
14
0%
6
Hand Surgery Physician
3,710
1.1
18%
21
12%
6–7
Prosthodontists Other clinician
3,847
1.1
28%
24
—
—
Hospice & Palliative Medicine Physician
4,179
1.2
59%
15
33%
4–5
Interventional Radiology Physician
4,699
1.4
12%
18
21%
6
Vascular Surgery Physician
5,362
1.6
18%
22
28%
5–7
Allergy & Immunology Physician
5,552
1.6
43%
24
37%
5
Medical Oncology Physician
5,662
1.7
37%
24
65%
5–6
Cardiothoracic Surgery Physician
6,061
1.8
11%
28
27%
6–8
Midwives Other clinician
6,120
1.8
99%
7
1%
—
Geriatric Medicine Physician
6,137
1.8
51%
26
42%
4
Genetic Counselors Other clinician
6,477
1.9
93%
2
—
—
Periodontists Other clinician
6,596
2.0
28%
21
—
—
Endodontists Other clinician
6,698
2.0
25%
21
—
—
Radiation Oncology Physician
6,976
2.1
29%
21
40%
5
Interventional Cardiology Physician
7,322
2.2
8%
24
27%
7
Naturopaths Other clinician
7,378
2.2
76%
15
—
—
Critical Care Medicine Physician
7,405
2.2
28%
18
19%
5–6
Neonatology Physician
7,492
2.2
56%
16
0%
6
Child & Adolescent Psychiatry Physician
7,536
2.2
57%
23
37%
5–6
Rheumatology Physician
7,867
2.3
48%
22
60%
5
Sports Medicine Physician
7,975
2.4
24%
18
21%
4–5
Neurosurgery Physician
8,341
2.5
13%
21
40%
7
Oral & Maxillofacial Surgeons Other clinician
8,436
2.5
11%
22
2%
—
Plastic Surgery Physician
8,538
2.5
25%
23
8%
6–8
Endocrinology & Diabetes Physician
10,062
3.0
55%
22
68%
5
Pain Medicine Physician
10,182
3.0
19%
21
36%
5
Infectious Disease Physician
10,446
3.1
43%
23
45%
5
Pediatric Dentists Other clinician
10,982
3.2
55%
12
—
—
ENT (Otolaryngology) Physician
12,406
3.7
23%
22
21%
5
Certified Nurse-Midwives Other clinician
13,230
3.9
99%
9
2%
—
Nephrology (Kidney) Physician
13,252
3.9
30%
25
47%
5
Orthodontists Other clinician
13,598
4.0
31%
13
—
—
Hematology & Oncology Physician
13,608
4.0
36%
22
58%
6
Physical Medicine & Rehabilitation (PM&R) Physician
13,741
4.1
47%
18
25%
4
Urology Physician
14,598
4.3
14%
22
48%
5
Pulmonology Physician
15,173
4.5
24%
23
43%
5–6
General Practice Physician
15,928
4.7
38%
24
19%
1
Dermatology Physician
16,415
4.9
54%
19
10%
4
Gastroenterology Physician
20,453
6.0
22%
24
42%
6
Pathology Physician
21,645
6.4
43%
24
0%
4
Podiatrists Other clinician
23,299
6.9
29%
22
3%
—
Ophthalmology Physician
24,096
7.1
29%
24
3%
4
Audiologists Other clinician
24,211
7.2
84%
13
0%
—
Neurology Physician
24,393
7.2
38%
19
53%
4
Cardiology Physician
26,077
7.7
19%
27
31%
6
Orthopedic Surgery Physician
26,881
7.9
10%
22
12%
5
Hospitalist Physician
27,371
8.1
42%
14
5%
3
Acupuncturists Other clinician
33,630
9.9
68%
16
1%
—
General Surgery Physician
34,907
10
28%
21
13%
5
Radiology Physician
44,592
13
26%
23
1%
5
OB-GYN (Obstetrics & Gynecology) Physician
50,407
15
64%
21
10%
4
Anesthesiology Physician
58,008
17
29%
20
1%
4
Psychiatry Physician
58,538
17
45%
21
51%
4
Psychiatric Nurse Practitioners Other clinician
59,934
18
82%
5
50%
—
Optometrists Other clinician
64,749
19
50%
18
0%
—
Emergency Medicine Physician
71,326
21
32%
14
3%
3–4
Registered Dietitians Other clinician
71,932
21
94%
12
28%
—
Nurse Anesthetists (CRNA) Other clinician
74,172
22
60%
12
0%
—
Pediatrics Physician
74,298
22
68%
15
5%
3
Addiction Counselors Other clinician
96,350
29
66%
11
23%
—
Marriage & Family Therapists Other clinician
102,205
30
81%
13
24%
—
Chiropractors Other clinician
104,294
31
31%
22
0%
—
Behavior Analysts Other clinician
111,100
33
84%
9
18%
—
Professional Counselors Other clinician
142,616
42
81%
12
23%
—
Internal Medicine Physician
146,625
43
42%
21
32%
3
Family Medicine Physician
153,753
46
46%
20
36%
3–4
Psychologists Other clinician
158,368
47
71%
21
45%
—
Occupational Therapists Other clinician
159,735
47
90%
10
3%
—
Speech-Language Pathologists Other clinician
203,513
60
96%
10
10%
—
Dentists (general) Other clinician
219,507
65
37%
11
3%
—
Physician Assistants Other clinician
220,301
65
71%
9
19%
—
Physical Therapists Other clinician
288,806
85
66%
10
1%
—
Mental Health Counselors Other clinician
295,007
87
80%
10
26%
—
Clinical Social Workers Other clinician
316,299
94
84%
16
36%
—
Pharmacists Other clinician
327,115
97
60%
9
—
—
Nurse Practitioners Other clinician
461,178
136
90%
8
22%
—
Counts: clinicians registered in the CMS NPPES directory with this primary specialty and a practice address in the 50 states, DC or Puerto Rico; the same numbers as our maps.
About this page This medical specialties list covers every kind of doctor and clinician in our directory, from family medicine and cardiology to nurse practitioners and physical therapists. You can filter the table by name or type, and sort it by any column.
What each page in the medical specialties list shows
How many practice in the U.S., and where, with a county map.
How long training takes after medical school.
The share of women, and of physicians near retirement.
The Medicare services they provide and the drugs they prescribe.
The hospitals and medical schools most connected to them.
Payments from drug and device companies, and research in the field.
How to use the medical specialties list
Patients can use it to learn what each kind of doctor does. For example, the cardiology page shows the tests cardiologists perform most for Medicare patients. Students, meanwhile, can compare training length, workload and the share of women across fields.
In addition, students can compare specialties side by side in how to choose a medical specialty . Training lengths are in residency and fellowship length by specialty , and workload is in work RVUs by specialty .
How specialties are defined
We group clinicians by the primary taxonomy code in the NPI Registry. These codes come from the NUCC Health Care Provider Taxonomy (opens in a new tab) . As a result, a clinician appears once, under the specialty they list first. Read our methodology for details.
Questions about the medical specialties list
How many medical specialties are there? Our medical specialties list includes every physician specialty and clinician type in the NPI Registry that has enough clinicians to describe. Some very small fields are grouped with a broader specialty. So if you can’t find a field, try its broader name.
Which specialty takes the longest to train? Sort the table by Training to see. Surgical subspecialties such as neurosurgery and cardiothoracic surgery take the longest.