Medicare providers in Missouri

56,174 unique NPIs are enrolled in Medicare in Missouri, number 21 of 51. Practitioners in the 83 specialties tracked here account for 44,620 of them; the largest is nurse practitioner (9,000), and nurse practitioners outnumber family-practice physicians 3.8 to 1.

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1Enrolled NPIs 56,174
2Largest specialty Nurse Practitioner
3Rank of 51 #21
4Specialties present 83

Medicare-enrolled practitioners in Missouri by specialty, 15 largest, bars to scale. Source: CMS PPEF, 2026-09-29.

Every specialty in Missouri

Each figure is the number of NPIs enrolled in Medicare in Missouri under that specialty, beside its share of the specialty's national total.

Specialty	MO	Share of US
Nurse Practitioner	9,000	2.5%
Family Practice	2,360	2%
Internal Medicine	2,282	1.8%
Physician Assistant	2,140	1.2%
Certified Registered Nurse Anesthetist (CRNA)	2,074	3.3%
Mental Health Counselor	1,863	2.6%
Physical Therapist in Private Practice	1,789	1.6%
Clinical Social Worker	1,744	1.8%
Emergency Medicine	1,567	2.4%
Chiropractic	1,270	2.8%
Diagnostic Radiology	1,267	3.3%
Pediatric Medicine	1,200	2.1%
Anesthesiology	1,055	2.1%
Optometry	1,019	2.2%
Psychiatry	935	2.5%
Obstetrics/Gynecology	906	2.1%
Hospitalist	866	3%
Neurology	713	3.3%
General Surgery	632	2.3%
Orthopedic Surgery	631	2.4%
Clinical Psychologist	629	1.7%
Cardiovascular Disease (Cardiology)	524	2.1%
Occupational Therapist in Private Practice	465	1.9%
Gastroenterology	399	2.2%
Ophthalmology	396	1.9%
Pathology	333	2.3%
Pulmonary Disease	316	2.3%
Anesthesiology Assistant	316	6.9%
Qualified Audiologist	301	2.6%
Podiatry	295	1.7%
Critical Care (Intensivists)	291	3.6%
Qualified Speech Language Pathologist	279	1.9%
Urology	270	2.3%
Nephrology	270	2.4%
Dermatology	265	1.8%
Otolaryngology	259	2.3%
Hematology/Oncology	228	1.9%
Dentist	217	3.6%
Neurosurgery	207	3.1%
Physical Medicine and Rehabilitation	201	1.8%
Endocrinology	197	2.3%
Infectious Disease	191	2.3%
Interventional Cardiology	168	2.9%
Registered Dietitian or Nutrition Professional	167	1.5%
Radiation Oncology	151	2.6%
Medical Oncology	138	2.7%
Vascular Surgery	125	2.7%
Rheumatology	122	1.9%
Plastic and Reconstructive Surgery	115	2%
Certified Nurse Midwife (Cnm)	112	1.2%
Interventional Radiology	108	2.9%
Thoracic Surgery	92	2.5%
Allergy/Immunology	90	2.1%
General Practice	87	0.9%
Cardiac Electrophysiology	84	2.8%
Certified Clinical Nurse Specialist (Cns)	77	3.5%
Pain Management	76	2.1%
Sports Medicine	68	2.6%
Marriage and Family Therapist	66	0.4%
Oral Surgery	65	1.8%
Hospice/Palliative Care	56	1.9%
Geriatric Medicine	44	1.7%
Cardiac Surgery	44	2.6%
Maxillofacial Surgery	39	3.6%
Interventional Pain Management	37	2.1%
Colorectal Surgery (Proctology)	36	1.7%
Advanced Heart Failure and Transplant Cardiology	34	3.2%
Hand Surgery	31	1.6%
Sleep Medicine	31	2.3%
Gynecological Oncology	29	2.1%
Surgical Oncology	25	1.5%
Hematology	22	1.7%
Nuclear Medicine	22	3%
Osteopathic Manipulative Medicine	19	1.7%
Epileptologists	19	5.3%
Preventive Medicine	17	1.6%
Micrographic Dermatologic Surgery (Mds)	13	2.1%
Psychologist Billing Independently	7	0.7%
Medical Genetics and Genomics	7	1.5%
Addiction Medicine	5	0.6%
Neuropsychiatry	5	1.1%
Other (Non-Physician)	4	1%
Other (Physician)	1	0.2%

Source: CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29; unique NPIs per state. Checked 2026-10-24. Methodology.