Healthcare Providers & Facilities in Columbia, MD
Public healthcare directory of 6,705 individual practitioners and 1,671 healthcare facilities located in Columbia, Maryland.
Medical Specialties in Columbia
Select a specialty to view practitioner listings, practice locations, and qualifications.
Social Worker - Clinical
Physical Therapist
Nurse Practitioner - Family
Pharmacist
Internal Medicine
Physician Assistant
Psychologist - Clinical
Dentist - General Practice
Family Medicine
Occupational Therapist
Obstetrics & Gynecology
Nurse Practitioner
All Specialties in Columbia
Specialties with enough public records for a comparison with U.S. figures, besides those named above, plus the 60 largest of 187 more with at least one listed practitioner. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Anesthesiology (30)
- Dermatology (8)
- Emergency Medicine (33)
- General Practice (18)
- Hospitalist (16)
- Internal Medicine - Cardiovascular Disease (14)
- Internal Medicine - Critical Care Medicine (9)
- Internal Medicine - Endocrinology, Diabetes & Metabolism (6)
- Internal Medicine - Gastroenterology (25)
- Internal Medicine - Infectious Disease (5)
- Internal Medicine - Nephrology (6)
- Internal Medicine - Pulmonary Disease (9)
- Internal Medicine - Rheumatology (6)
- Ophthalmology (13)
- Orthopaedic Surgery (13)
- Pathology - Anatomic Pathology & Clinical Pathology (8)
- Pediatrics (68)
- Pediatrics - Neonatal-Perinatal Medicine (6)
- Physical Medicine & Rehabilitation (6)
- Psychiatry & Neurology - Child & Adolescent Psychiatry (13)
- Psychiatry & Neurology - Neurology (22)
- Psychiatry & Neurology - Psychiatry (47)
- Radiology - Diagnostic Radiology (12)
- Surgery (13)
- Urology (14)
Behavioral Health & Social Service Providers
- Assistant Behavior Analyst (10)
- Behavior Analyst (272)
- Behavior Technician (2,034)
- Clinical Neuropsychologist (5)
- Counselor (35)
- Counselor - Addiction (Substance Use Disorder) (19)
- Counselor - Mental Health (172)
- Counselor - Professional (174)
- Marriage & Family Therapist (33)
- Psychologist - Clinical Child & Adolescent (8)
- Psychologist - School (7)
- Social Worker (127)
Chiropractic Providers
- Chiropractor (34)
Dental Providers
Dietary & Nutritional Service Providers
- Dietitian, Registered (22)
- Nutritionist (11)
Eye and Vision Services Providers
- Optometrist (24)
Nursing Service Providers
Nursing Service Related Providers
- Doula (12)
- Home Health Aide (15)
- Nurse's Aide (5)
Other Service Providers
- Acupuncturist (106)
- Case Manager/Care Coordinator (14)
- Specialist (28)
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
- Advanced Practice Midwife (14)
- Nurse Anesthetist, Certified Registered (28)
- Nurse Practitioner - Acute Care (9)
- Nurse Practitioner - Adult Health (27)
- Nurse Practitioner - Gerontology (8)
- Nurse Practitioner - Obstetrics & Gynecology (5)
- Nurse Practitioner - Pediatrics (29)
- Nurse Practitioner - Women's Health (8)
- Physician Assistant - Medical (21)
- Physician Assistant - Surgical (7)
Podiatric Medicine & Surgery Service Providers
- Podiatrist (5)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Student, Health Care
Featured Healthcare Providers in Columbia
Practitioner profiles in Columbia, MD with recent CMS Medicare or Open Payments data.
Melissa Nickols , PA-C
Physician Assistant
Naier Anhary , PMHNP
Nurse Practitioner - Psychiatric/Mental Health
Jodi Yatto , MS CCC-SLP
Speech-Language Pathologist
Dr. Rena Johnson , MD
Family Medicine
Dr. Jacqueline Shepard-Lewis , MD
Family Medicine
Terry Prahl , CNM
Advanced Practice Midwife
Largest Cities in Maryland
Other Maryland cities with a full directory, by the number of active practitioners listed in NPPES.
How Columbia compares with the U.S.
Compared with the U.S. as a whole, Columbia has more clinicians in Nurse Practitioner - Psychiatric/Mental Health (5.7x), clinicians in Nurse Practitioner - Primary Care (4.6x) and Psychologists (4.1x) per 100,000 residents.
Columbia has 6,426 active clinicians per 100,000 residents, compared with 2,198 for the U.S.
What these numbers mean
Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.
A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.
City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.
84% of clinicians in Columbia listed in the CMS Medicare file (901 of 1,070) accept Medicare assignment. That is similar to the Maryland share of 84%.
Only 1,070 of 6,705 active clinicians in Columbia appear in the CMS Medicare file, so this share describes that smaller group.
What is Medicare assignment?
A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.
Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.
31% of clinicians in Columbia listed in the CMS Medicare file (327 of 1,070) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Maryland share of 27%.
About the telehealth indicator
The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).
Columbia CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Columbia, MD
Healthcare operations in Columbia, MD encompass 6,705 active individual practitioners and 1,671 registered medical facilities across 223 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Columbia accounts for $93.6 Million across 578,114 prescription claims. 1,604 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.7 Million in payments reported by companies to 601 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.