Doctors and health care providers in Columbia, MD
6,690 individual NPPES records list a practice address in Columbia, 4th of 284 Maryland cities. The largest group is behavior technician: 2,034, 30% of the city's records, against 16% across Maryland. Page 100 of 134.
The 8 largest groups in Columbia
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Columbia in Maryland
- Rank in Maryland4th of 284 cities by records
- Share of the state4.2% of Maryland's records
- Specialties present25 or more taxonomy codes
- Top three groups47.3% of all records
- Behavior Technician rank3rd of the 10 Maryland cities with the most
Compared with Maryland as a whole, Columbia has 7.6× the state's share of registered nurse records and 0.47× its share of occupational therapist records.
Providers in Columbia, alphabetically
- Rakysha RaysorRegistered Nurse1932633831
- Grace ReamerProfessional Counselor1720173404
- Claire Reardon, LCSW-CClinical Social Worker1700450848
- Laura Reaven, MDNeurology Physician1427250323
- Emani ReavesBehavior Technician1801539952
- Jared Reaves, MDPhysical Medicine & Rehabilitation Physician1679754188
- Michael ReddSocial Worker1891656401
- Sheela Reddy, M.S, ED.DClinical Psychologist1972620490
- Johnia Redhead-Joseph, RNRegistered Nurse1992136881
- Amy Redman, MSW, LCSW-CClinical Social Worker1417688052
- Andrea RedmanBehavior Technician1992637268
- Lyana Redmond, CCC-SLPSpeech-Language Pathologist1629535224
- Tyler RedmondBehavior Analyst1700451085
- Zaire RedwoodBehavior Technician1417677592
- Connor Reed, DCChiropractor1649115999
- Felease Reed, CRNP-PMHPsychiatric/Mental Health Nurse Practitioner1417118795
- Tyesha ReedBehavior Technician1649951971
- Xavia Reed, RN/BSNRegistered Nurse1821501362
- Lindsay Reep, LCSW-CClinical Social Worker1891171450
- Ashley ReeseBehavior Technician1477254282
- Ryan Reese, D.O.Sports Medicine (Family Medicine) Physician1134654452
- Anthony ReevesBehavior Technician1740171164
- Jessica Reeves, RNRegistered Nurse1972047884
- Kiaira ReevesBehavior Technician1609477660
- James Reggia, M.D, PHD.Neurology Physician1053699116
- Allie-Lane Regier, BSN, RNCertified Registered Nurse Anesthetist1336816156
- Lysa Regits, PHARMDPharmacist1528584968
- Sharon ReglandBehavior Technician1215651310
- Carilyn Rego, MSW, LCSW-CClinical Social Worker1740500545
- Demielle RehrMedical Art Specialist/Technologist1215805296
- Scott Rehrig, M.D.Surgery Physician1609824499
- Eric ReidBehavior Technician1518696772
- Juliana ReidBehavior Technician1699608174
- Kathleen Reid, RNRegistered Nurse1568996460
- Tamala ReidDoula1750231015
- Clarissa ReilleyBehavior Technician1851022685
- Christine Reilly, M.DPediatrics Physician1518935410
- Joan Reilly, RNRegistered Nurse1992058853
- Kevin Reilly, ATCAthletic Trainer1710394929
- Melissa Reinhardt, MSPTPhysical Therapist1194880898
- Daphne Reinhart, M.S., L.G.P.C.Mental Health Counselor1649263013
- Kate ReisBehavior Analyst1629528815
- Amanda Reiss, NPCritical Care Medicine Nurse Practitioner1881315364
- Gina ReiterStudent in an Organized Health Care Education/Training Program1144153651
- Patricia Rekus, RNRegistered Nurse1053795690
- Isabelo RemoladorPhysical Therapist1366604258
- Tianbo Ren, MDDiagnostic Radiology Physician1184855223
- Laura Renbaum, M.D.Psychiatry Physician1073511226
- Miriam Rendon Ponce, LMSWSocial Worker1447115779
- Ketsia ReneBehavior Technician1699444299
The largest Maryland cities
- Baltimore35,183
- Rockville14,353
- Bethesda7,245
- Silver Spring6,531
- Frederick3,981
How to read this directory
Columbia, Maryland appears in the CMS National Plan and Provider Enumeration System with 6,690 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Columbia - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Columbia practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Columbia is weighted toward Behavior Technician (2,034 clinicians, followed by Registered Nurse with 783 and Clinical Social Worker with 346). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Maryland's population, Columbia reports roughly 108.2 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of Maryland's most common specialties, Home Health Aide is the most prominent one with no provider currently listing a Columbia practice address, a coverage gap Columbia patients typically fill by traveling to a larger nearby hub.
For Columbia patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Columbia, MD?
There are 6,690 registered healthcare providers in Columbia, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Columbia?
The most common specialties in Columbia are Behavior Technician, Registered Nurse, Clinical Social Worker, Behavior Analyst, Physical Therapist. Behavior Technician has the most providers with 2,034.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.