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 131 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. Jessica Winkles, PH.D.Clinical Child & Adolescent Psychologist1356658413
  2. Quisha WinslowBehavior Technician1154971596
  3. Laura WinsteadClinical Social Worker1629502851
  4. Markita WinstonBehavior Technician1417745498
  5. Brian Winter, M.D.Ophthalmology Physician1053349852
  6. Christine Wirsing, LCPC, NCCProfessional Counselor1497136881
  7. Kyra WirszBehavior Technician1649138124
  8. Karie-Daelynn WiseBehavior Technician1669249785
  9. Karlissa Wise, LCSW-CClinical Social Worker1043790660
  10. Melynda WiseMassage Therapist1588103857
  11. James Wiseman, M.D.Surgery Physician1346421930
  12. Samantha WisnerBehavior Technician1316535883
  13. Anne WissmanBehavior Technician1740168111
  14. Cynthia Witczak, RNRegistered Nurse1477992386
  15. Deidra Witherspoon, RNRegistered Nurse1487134375
  16. James Withey, M.D.Hospitalist Physician1841559861
  17. Jessica Witt, MS, CNS, LDNNutritionist1144958190
  18. Rhonda Witte, RN,BSNRegistered Nurse1265840656
  19. Issamar WoghirenBehavior Analyst1386189611
  20. Wubet WoldesemayateRegistered Nurse1619333820
  21. Mary Ellen WolfRegistered Nurse1104233154
  22. Christina Wolfe, RDHDental Hygienist1043064918
  23. Scott Wolfe, PH.D.Clinical Psychologist1841309549
  24. Kamryn WolfordBehavior Analyst1184418402
  25. Dana Wollney, M.D.Pediatrics Physician1306858055
  26. Diane WonPharmacist1194249243
  27. Albert Wong, M.D.Dermatology Physician1942279518
  28. Charity WongPhysical Therapist1871362681
  29. Prudence WongPharmacist1396345039
  30. Francine WoniewalaBehavior Technician1942971551
  31. Amy Wood, PHARMDPharmacist1780100156
  32. Charlotte Wood, LMSWSocial Worker1992545131
  33. Elizabeth WoodBehavior Technician1093536195
  34. Yvette WoodRegistered Nurse1295166122
  35. Amanda Woodcox, LMSWClinical Social Worker1316671324
  36. Deborah Woodend Stenger, LGPCMental Health Counselor1124774419
  37. Sarah WoodisRegistered Nurse1518312701
  38. Riley WoodruffFamily Nurse Practitioner1891525226
  39. Asia Woods, R.N.Registered Nurse1427316439
  40. Jamie Woods, LCSW-CClinical Social Worker1972026771
  41. Sandra Woods, P.T.Physical Therapist1013025725
  42. Mathew Woodward, D.D.S.Oral and Maxillofacial Surgery (Dentist)1679809958
  43. Greer WoolleyBehavior Technician1831834399
  44. Shaneka WoolridgeBehavior Technician1891421434
  45. Rachael Wortham, LMSWSocial Worker1609579903
  46. Yorlondo Wortham, LCPCProfessional Counselor1033834668
  47. Alexandra WozniakPrimary Care Nurse Practitioner1962989020
  48. Pamela WrenchAdult Psychiatric/Mental Health Registered Nurse1073452777
  49. Althea WrightBehavior Technician1265132179
  50. Anthony WrightBehavior Analyst1326973462

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.