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 70 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. Michael Lent, PH.D.Clinical Psychologist1932676368
  2. Allison Lentz, WHNP, CNMMidwife1396451290
  3. Dorothy Leonard, RNRegistered Nurse1942745294
  4. Sierra LeonardBehavior Technician1467246132
  5. Katherine LeoneBehavior Analyst1265888713
  6. Suzanne Lescht, LCSW CSocial Worker1255476586
  7. Dylan Lescure, MDEmergency Medicine Physician1871159921
  8. Ashlee LesterBehavior Technician1972108181
  9. Kim LesterBehavior Technician1336809698
  10. Julia LeungBehavior Analyst1124626759
  11. Marc Levender, LCPCProfessional Counselor1912698507
  12. Erica Leventhal, MDObstetrics & Gynecology Physician1972562353
  13. Rona Levi, LCSW-CClinical Social Worker1053327742
  14. Steven Levin, M.D.Pain Medicine (Anesthesiology) Physician1730291766
  15. Veronika Levin, M.D.Obstetrics & Gynecology Physician1770962680
  16. Jerry Levine, M.D.Internal Medicine Physician1295736429
  17. Shequietta LevineBehavior Technician1578349312
  18. Staci Levine, DPTPhysical Therapist1790935302
  19. Mary Levinsohn-Klyap, PH.D.Psychologist1396928115
  20. Julian Levy, ODOptometrist1578647715
  21. Ilana Levy-Paris, PH.D.Clinical Psychologist1912312083
  22. Samantha Lewandowski, RD LD MSNutrition Education Nutritionist1871695874
  23. Angela Lewis, PT, DPTPhysical Therapist1396927620
  24. Beatrice Lewis, MSW, LCSW-CClinical Social Worker1811252745
  25. Carla LewisBehavior Analyst1447149828
  26. Chastity LewisBehavior Technician1194608695
  27. Hillary LewisBehavior Technician1003344433
  28. John LewisRegistered Nurse1912303983
  29. Kelley Lewis, RNRegistered Nurse1376935148
  30. Lezley LewisBehavior Technician1528725215
  31. Lorraine LewisBehavior Technician1164215687
  32. Lynn Lewis, LCSW-CClinical Social Worker1346555356
  33. Morine Lewis, LMT, CNAMassage Therapist1841003423
  34. Rachael Lewis, CRNPFamily Nurse Practitioner1801311378
  35. Serina Lewis, MDFamily Medicine Physician1174180277
  36. Toya Lewis, RNRegistered Nurse1326715822
  37. Melissa Lewis-Pringle, R.N.Registered Nurse1437494820
  38. Corinne Lewkowicz, PHDPsychologist1649770462
  39. Harry Li, M.D.Internal Medicine Physician1487711552
  40. Huina LiBehavior Analyst1881574549
  41. Judy Li, APRNNurse Practitioner1750191516
  42. Pearl LiPharmacist1174308449
  43. Shiau Rung Li, PA-CMedical Physician Assistant1528109196
  44. Xin LiGenetic Counselor (M.S.)1366076713
  45. Xuewei Li, D.D.S.Dentist1700015542
  46. Yingjun Li, M.D.Neurology Physician1154540516
  47. Peter Liao, M.D.Surgery Physician1306809033
  48. Belle Libber, P.T.A.Physical Therapy Assistant1164632733
  49. Elena Libster, RNRegistered Nurse1528575289
  50. Kelsey LicataBehavior Technician1861084568

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.