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 79 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. Dahlia McFarlaneBehavior Technician1932863792
  2. Jomar McFarlane, LCPCMental Health Counselor1578179396
  3. Charles McGeiverMarriage & Family Therapist1629551635
  4. Jakayla McGillBehavior Technician1255054037
  5. Amy McGrawBehavior Technician1023603511
  6. Genesis McGruderBehavior Technician1508465394
  7. Daniel McGuiganBehavior Technician1558960427
  8. Alaina McGuire, BSBehavior Technician1366034050
  9. Amber McGuireBehavior Analyst1689543951
  10. Courtney McGuire, M.D.Pediatrics Physician1215170543
  11. Elizabeth McGuire, M.A.Behavior Analyst1093936155
  12. Jessica McGuire, RNRegistered Nurse1164908687
  13. Marielle McIntyreClinical Social Worker1922646348
  14. Stephanie McKay, DPTPhysical Therapist1114205911
  15. Trevor McKayProfessional Counselor1417504788
  16. Wendell McKay, M.D.Pediatrics Physician1316902117
  17. Brittany McKeeBehavior Technician1881391654
  18. Diane McKelvey, EDDBehavior Analyst1891413985
  19. Casey McKenzie, OTR/LOccupational Therapist1942879325
  20. Grace McKenzie, RN BSNRegistered Nurse1114461035
  21. Kamryn McKenzieBehavior Technician1114663812
  22. Marleen McKenzie, M.D.Anesthesiology Physician1831221621
  23. Diana McKevitt, RNRegistered Nurse1972169183
  24. Ikeima McKinneyBehavior Technician1932852472
  25. Jessica McKinney, RN, MSN, CCRNRegistered Nurse1912492042
  26. Mahogany McKinneyMental Health Counselor1477379410
  27. Mark McKinnon, PA-CPhysician Assistant1235258971
  28. Ariel McKoyBehavior Technician1740978220
  29. Norman McKoyAnesthesiology Physician1205289741
  30. Gabrielle McLeanBehavior Technician1306797402
  31. Keenan McLean, BCBA, M.ED.Behavior Analyst1497427876
  32. Lianell McLeaurinBehavior Technician1366398075
  33. Kellie McLellan, LCSW-CClinical Social Worker1477895571
  34. Ameera McLendonBehavior Technician1356008361
  35. Sydni McMillan, LMSWClinical Social Worker1003624206
  36. Carrie McMillen, D.D.S.General Practice Dentistry1144488420
  37. Crystal McMullenRegistered Nurse1033524467
  38. Candice McNairClinical Social Worker1073368676
  39. Caroline McNamaraBehavior Analyst1669068730
  40. Amanda McNealBehavior Analyst1073364055
  41. Samuel McNearBehavior Technician1598474926
  42. Verritta McNeely, RNRegistered Nurse1417386996
  43. Au'Bryone McQueenBehavior Technician1922935980
  44. Renee McSwainAcupuncturist1720564420
  45. Jack McWatters, MDSpecialist1083681118
  46. Douglas McWilliams, MDPsychiatry Physician1851897318
  47. Briana Meader, LCSW-CClinical Social Worker1568734796
  48. Dean Meadows, M.D.Internal Medicine Physician1922064427
  49. Alexia MechlingBehavior Technician1518886589
  50. Karen Meckler, M.D.Psychiatry Physician1396800959

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.