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 129 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. Melissa Wieciech, PA-CMedical Physician Assistant1497067672
  2. Aaron Wiener, MDEmergency Medicine Physician1396039350
  3. Emily WietmarschenProfessional Counselor1700376563
  4. Wennifer Wiggins, N.PFamily Nurse Practitioner1295814499
  5. Mary Wilbanks, LCPCProfessional Counselor1457631673
  6. Emily Wilde, LGPCProfessional Counselor1952143265
  7. Barbara WilhideRegistered Nurse1184099269
  8. Joshua Wilk, PH.D.Psychologist1932229036
  9. Erica WilkersonRegistered Nurse1841603545
  10. Kate Wilkie, PT, DPTPhysical Therapist1164383592
  11. Jalyn WilkinsBehavior Technician1881342426
  12. Jayla WilkinsBehavior Technician1649926551
  13. Melissa Wilkins, LCSW-CClinical Social Worker1982790424
  14. Avery WilkinsonSocial Worker1992309587
  15. Earl Wilkinson, M.D.Otolaryngology Physician1902871379
  16. Maryann Wilkinson, EDD,APRN/PMHAdult Psychiatric/Mental Health Registered Nurse1386724052
  17. Laura Willemin, LCSW-CClinical Social Worker1730952938
  18. Sally Willett, M.D.Psychiatry Physician1164515698
  19. Maria Willey, M.A., LCMFTMarriage & Family Therapist1487789319
  20. Liberatha WilliamBehavior Technician1376400374
  21. Aalilyah WilliamsBehavior Technician1356054696
  22. April WilliamsSocial Worker1871439539
  23. Ava Williams, DNP, CRNP, FNP-BCFamily Nurse Practitioner1841693405
  24. Aylissa WilliamsBehavior Technician1598653610
  25. Breonna WilliamsBehavior Technician1407626245
  26. Breyah WilliamsBehavior Technician1093441958
  27. Bryan WilliamsBehavior Technician1639049778
  28. Candida WilliamsRegistered Nurse1679919989
  29. Charles WilliamsBehavior Technician1124913710
  30. Christopher WilliamsBehavior Technician1912885542
  31. Crystal WilliamsPsychiatric/Mental Health Nurse Practitioner1477026045
  32. Cynthia Williams, RN, BSNRegistered Nurse1295403673
  33. Danielle Williams, LMSWSocial Worker1487158598
  34. Derrick WilliamsBehavior Technician1194400689
  35. Devon WilliamsPhysical Therapist1710709514
  36. Elaine Williams, LPCProfessional Counselor1831939412
  37. Emily WilliamsBehavior Technician1609482710
  38. Holly Williams, MS, MAC, LACAcupuncturist1386938280
  39. Jacqueline Williams, PMHNPPsychiatric/Mental Health Nurse Practitioner1588270458
  40. Jessica Williams, NPAdult Health Nurse Practitioner1477998326
  41. Jocelyn WilliamsBehavior Technician1821671843
  42. Jolene Williams, COTA/LOccupational Therapy Assistant1427450600
  43. Karen Williams, RN BSNRegistered Nurse1346630084
  44. Kenneth Williams, M.A.Professional Counselor1952414534
  45. Kenya Williams, LCSW-CClinical Social Worker1679101885
  46. Kenya WilliamsBehavior Technician1942012844
  47. Kia WilliamsRegistered Nurse1942607692
  48. Kimberly Williams, LMSWClinical Social Worker1245767268
  49. Kimberly Williams, RNRegistered Nurse1831854843
  50. Lashae WilliamsBehavior Technician1932796133

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.