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 71 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. Michell Lide Van DuzerBehavior Technician1215874805
  2. Saul Lieberman, PH.D.Intellectual & Developmental Disabilities Psychologist1871686543
  3. Angela LigginsBehavior Technician1245876861
  4. Taylor Liggins, LCPCMental Health Counselor1114407517
  5. Madison LikensBehavior Technician1144794447
  6. Megan LilleyBehavior Technician1467002659
  7. Brandon Lim, DPT, CMTPTOrthopedic Physical Therapist1942618178
  8. Vanessa Lima, MDOphthalmology Physician1962522672
  9. Amanda Lind, OTR-LOccupational Therapist1134931074
  10. Romy LindahlBehavior Analyst1104494376
  11. Robert LindnerRegistered Nurse1427457126
  12. Jasmine LindsayBehavior Technician1861371999
  13. Shelley Lindsay-Long, R.N.Registered Nurse1942597182
  14. Eric Lindsell, D.C.Chiropractor1437280757
  15. Mikala LindseyBehavior Technician1538045141
  16. Erin Linehan Rexrode, LMSWSocial Worker1851030365
  17. Phaedran LingerBehavior Technician1154149714
  18. William Linkroum, CRNPAcute Care Nurse Practitioner1467019307
  19. Lauren Linn, LCSW-CClinical Social Worker1932863164
  20. Dawn LinthicumClinical Social Worker1720789258
  21. Emily LintonBehavior Technician1346948247
  22. Linda Linton, LCSW-CClinical Social Worker1023159951
  23. Kimberly LipkaRegistered Nurse1376932939
  24. Cynthia Lipsitz, MD MPHPublic Health & General Preventive Medicine Physician1326170069
  25. Mollye Lipton, DPTPhysical Therapist1578017489
  26. Kwanita ListerBehavior Technician1134939424
  27. Katherine ListonBehavior Technician1922610518
  28. Ethan LitofskyCounselor1780562108
  29. Britney LittleBehavior Analyst1053812560
  30. Jia Liu, M.D.Nephrology Physician1043282544
  31. Jun LiuLicensed Practical Nurse1063761518
  32. Katherine Liu, LCSW-CClinical Social Worker1417338583
  33. Manchang Liu, PA-CMedical Physician Assistant1265122824
  34. Emily Livelsberger, LGPCMental Health Counselor1629616040
  35. Amanda LivingstonBehavior Technician1083365092
  36. Angela LivingstonMental Health Counselor1073487880
  37. Tiffany Livingston, BSN, RNRegistered Nurse1891288544
  38. Glynette Livingstone, P.T. MHSPhysical Therapist1568549822
  39. Catherine LloydRegistered Nurse1740659689
  40. Caroline LobiondoBehavior Technician1437036225
  41. Priscilla LoboFamily Nurse Practitioner1851173132
  42. Elizabeth LochteBehavior Technician1871427617
  43. Esther LogahBehavior Technician1205648136
  44. Adell Logan, FNP-BCFamily Nurse Practitioner1669022240
  45. Destiny Logan, BS, MEDBehavior Technician1558039289
  46. Jermaine LoganBehavior Technician1023968310
  47. Ryan Logue, LCPCMental Health Counselor1316393598
  48. Diane Loisel, CRNPNeonatal Nurse Practitioner1336150135
  49. Majesty LomaxBehavior Technician1578310025
  50. Felicia Lombard, FNPNurse Practitioner1235863093

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.