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 78 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. Debora McCaffery, REGISTERED NURSERegistered Nurse1043778640
  2. Lauren McCaffrey, LMSWSocial Worker1912636648
  3. Diane McCallaRegistered Nurse1457829483
  4. Kevin McCamant, PH.D.Psychologist1912398223
  5. Daniel McCarthy, PH.D.Psychologist1124563929
  6. Eva McCarthy, R.N.Registered Nurse1346621372
  7. Laura McCarthy, OTR/LHand Occupational Therapist1124148697
  8. Megan McCarthy, SLPSpeech-Language Pathologist1710406111
  9. Robert McCarthy, MDCardiovascular Disease Physician1760477327
  10. Margaret McClearyMental Health Counselor1841893773
  11. Karen McClelland, LCSW-CClinical Social Worker1124193263
  12. Alicia McClintock, ARNPPrimary Care Nurse Practitioner1508502220
  13. Danielle McCloskeyBehavior Technician1891529087
  14. Jaimey McClurkin, LCPCMental Health Counselor1306406996
  15. Georgette McClymont, RNRegistered Nurse1033487863
  16. James McCollom, LCSW-CClinical Social Worker1275751711
  17. Morgan McCollumBehavior Technician1679202097
  18. Rachel McConnell, M.A. CCC-SLPSpeech-Language Pathologist1285753632
  19. Megan McCordBehavior Technician1538824354
  20. Linda McCorkindale, RNRegistered Nurse1942866454
  21. Ryan McCormack, DDSGeneral Practice Dentistry1487252698
  22. Patricia McCormickRegistered Nurse1417310442
  23. Emma McCoyBehavior Technician1447185194
  24. Sarah McCoy, LCSW-CClinical Social Worker1659143766
  25. Sarah McCracken, L.AC.Acupuncturist1902144546
  26. Drew-Taylor McCraeBehavior Technician1598436842
  27. Lea McCrayBehavior Analyst1275140063
  28. Tia McCray, NPWomen's Health Nurse Practitioner1104225135
  29. Amy McCready, RNRegistered Nurse1427463843
  30. Jasmine McCreeBehavior Technician1760060701
  31. Aimee McCullough, PSYDClinical Psychologist1003990607
  32. Nwakanma McCulloughBehavior Technician1437878139
  33. Gillian McCuskerClinical Social Worker1376214049
  34. Cassandra McDaniel, M.D.Pediatrics Physician1629397112
  35. Alyssa McDermottBehavior Technician1326583832
  36. Cherise McDonaldBehavior Technician1689461998
  37. Ebony McDonaldBehavior Technician1942159421
  38. Karen McDonald, RBTBehavior Technician1508717000
  39. Kathleen McDonald, M.D.Neonatal-Perinatal Medicine Physician1619081817
  40. Nakeisha McDonaldBehavior Technician1841938255
  41. Raymond McDonald, L.AC.Acupuncturist1205565728
  42. Aimee McDowell, RNRegistered Nurse1568952026
  43. Carmyn McDuffieProfessional Counselor1205794047
  44. Ashanti McEwanBehavior Technician1548191331
  45. Michele McEwan, M.DPediatrics Physician1063489201
  46. Latroye McFaddenBehavior Technician1992638449
  47. Megan McFadden, NPPediatric Nurse Practitioner1841741352
  48. Shannon McFarland, OTR/LOccupational Therapist1013548197
  49. Sumar McFarland-Yetta, RNRegistered Nurse1790287779
  50. Brandon McFarlaneBehavior Technician1699569111

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.