Medicare providers in Maryland

54,104 unique NPIs are enrolled in Medicare in Maryland, number 22 of 51. Practitioners in the 80 specialties tracked here account for 43,227 of them; the largest is nurse practitioner (8,040), and nurse practitioners outnumber family-practice physicians 5.8 to 1.

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1Enrolled NPIs 54,104
2Largest specialty Nurse Practitioner
3Rank of 51 #22
4Specialties present 80

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

Every specialty in Maryland

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

Specialty	MD	Share of US
Nurse Practitioner	8,040	2.2%
Physician Assistant	3,800	2.2%
Internal Medicine	3,177	2.5%
Physical Therapist in Private Practice	2,763	2.4%
Clinical Social Worker	2,235	2.2%
Emergency Medicine	1,514	2.3%
Anesthesiology	1,410	2.8%
Family Practice	1,391	1.2%
Mental Health Counselor	1,289	1.8%
Diagnostic Radiology	1,265	3.3%
Certified Registered Nurse Anesthetist (CRNA)	1,189	1.9%
Pediatric Medicine	1,078	1.9%
Obstetrics/Gynecology	1,010	2.4%
Psychiatry	920	2.5%
Optometry	677	1.5%
Hospitalist	615	2.1%
General Surgery	615	2.2%
Cardiovascular Disease (Cardiology)	587	2.4%
Orthopedic Surgery	573	2.2%
Neurology	565	2.6%
Clinical Psychologist	547	1.5%
Ophthalmology	520	2.5%
Gastroenterology	437	2.4%
Occupational Therapist in Private Practice	433	1.8%
Chiropractic	391	0.9%
Podiatry	365	2.1%
Critical Care (Intensivists)	348	4.3%
Pathology	339	2.3%
Dermatology	282	1.9%
Urology	268	2.3%
Pulmonary Disease	259	1.9%
Nephrology	254	2.3%
Qualified Speech Language Pathologist	248	1.7%
Qualified Audiologist	243	2.1%
Physical Medicine and Rehabilitation	232	2.1%
Certified Nurse Midwife (Cnm)	231	2.4%
Otolaryngology	226	2%
Infectious Disease	216	2.6%
Endocrinology	206	2.5%
Hematology/Oncology	200	1.6%
Registered Dietitian or Nutrition Professional	187	1.7%
Medical Oncology	168	3.3%
Rheumatology	145	2.3%
Radiation Oncology	144	2.4%
Plastic and Reconstructive Surgery	140	2.4%
Neurosurgery	133	2%
Vascular Surgery	130	2.8%
Interventional Radiology	105	2.9%
General Practice	75	0.8%
Allergy/Immunology	74	1.8%
Geriatric Medicine	71	2.7%
Pain Management	69	1.9%
Hospice/Palliative Care	62	2.1%
Cardiac Electrophysiology	55	1.8%
Cardiac Surgery	55	3.3%
Interventional Cardiology	48	0.8%
Thoracic Surgery	46	1.3%
Interventional Pain Management	46	2.6%
Gynecological Oncology	36	2.6%
Dentist	35	0.6%
Hand Surgery	35	1.8%
Advanced Heart Failure and Transplant Cardiology	34	3.2%
Nuclear Medicine	34	4.6%
Surgical Oncology	31	1.9%
Marriage and Family Therapist	29	0.2%
Sports Medicine	29	1.1%
Colorectal Surgery (Proctology)	28	1.4%
Hematology	27	2.1%
Preventive Medicine	25	2.4%
Sleep Medicine	22	1.7%
Oral Surgery	21	0.6%
Certified Clinical Nurse Specialist (Cns)	21	0.9%
Neuropsychiatry	19	4.4%
Medical Genetics and Genomics	17	3.6%
Addiction Medicine	15	1.9%
Micrographic Dermatologic Surgery (Mds)	15	2.4%
Maxillofacial Surgery	14	1.3%
Epileptologists	14	3.9%
Psychologist Billing Independently	10	1%
Osteopathic Manipulative Medicine	5	0.4%

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