NPPES file of Aug 9, 2026

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.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

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

  1. Rakysha RaysorRegistered Nurse1932633831
  2. Grace ReamerProfessional Counselor1720173404
  3. Claire Reardon, LCSW-CClinical Social Worker1700450848
  4. Laura Reaven, MDNeurology Physician1427250323
  5. Emani ReavesBehavior Technician1801539952
  6. Jared Reaves, MDPhysical Medicine & Rehabilitation Physician1679754188
  7. Michael ReddSocial Worker1891656401
  8. Sheela Reddy, M.S, ED.DClinical Psychologist1972620490
  9. Johnia Redhead-Joseph, RNRegistered Nurse1992136881
  10. Amy Redman, MSW, LCSW-CClinical Social Worker1417688052
  11. Andrea RedmanBehavior Technician1992637268
  12. Lyana Redmond, CCC-SLPSpeech-Language Pathologist1629535224
  13. Tyler RedmondBehavior Analyst1700451085
  14. Zaire RedwoodBehavior Technician1417677592
  15. Connor Reed, DCChiropractor1649115999
  16. Felease Reed, CRNP-PMHPsychiatric/Mental Health Nurse Practitioner1417118795
  17. Tyesha ReedBehavior Technician1649951971
  18. Xavia Reed, RN/BSNRegistered Nurse1821501362
  19. Lindsay Reep, LCSW-CClinical Social Worker1891171450
  20. Ashley ReeseBehavior Technician1477254282
  21. Ryan Reese, D.O.Sports Medicine (Family Medicine) Physician1134654452
  22. Anthony ReevesBehavior Technician1740171164
  23. Jessica Reeves, RNRegistered Nurse1972047884
  24. Kiaira ReevesBehavior Technician1609477660
  25. James Reggia, M.D, PHD.Neurology Physician1053699116
  26. Allie-Lane Regier, BSN, RNCertified Registered Nurse Anesthetist1336816156
  27. Lysa Regits, PHARMDPharmacist1528584968
  28. Sharon ReglandBehavior Technician1215651310
  29. Carilyn Rego, MSW, LCSW-CClinical Social Worker1740500545
  30. Demielle RehrMedical Art Specialist/Technologist1215805296
  31. Scott Rehrig, M.D.Surgery Physician1609824499
  32. Eric ReidBehavior Technician1518696772
  33. Juliana ReidBehavior Technician1699608174
  34. Kathleen Reid, RNRegistered Nurse1568996460
  35. Tamala ReidDoula1750231015
  36. Clarissa ReilleyBehavior Technician1851022685
  37. Christine Reilly, M.DPediatrics Physician1518935410
  38. Joan Reilly, RNRegistered Nurse1992058853
  39. Kevin Reilly, ATCAthletic Trainer1710394929
  40. Melissa Reinhardt, MSPTPhysical Therapist1194880898
  41. Daphne Reinhart, M.S., L.G.P.C.Mental Health Counselor1649263013
  42. Kate ReisBehavior Analyst1629528815
  43. Amanda Reiss, NPCritical Care Medicine Nurse Practitioner1881315364
  44. Gina ReiterStudent in an Organized Health Care Education/Training Program1144153651
  45. Patricia Rekus, RNRegistered Nurse1053795690
  46. Isabelo RemoladorPhysical Therapist1366604258
  47. Tianbo Ren, MDDiagnostic Radiology Physician1184855223
  48. Laura Renbaum, M.D.Psychiatry Physician1073511226
  49. Miriam Rendon Ponce, LMSWSocial Worker1447115779
  50. Ketsia ReneBehavior Technician1699444299

The largest Maryland cities

  1. Baltimore35,183
  2. Rockville14,353
  3. Bethesda7,245
  4. Silver Spring6,531
  5. Frederick3,981

All of Maryland →

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.