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 127 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. Carrita Watkins, RBTBehavior Technician1023831591
  2. Irene WatkinsProsthetics Case Management1497373492
  3. Victoria WatkinsBehavior Technician1417529991
  4. Nikki Watkinson, BSN,RNRegistered Nurse1487313516
  5. Emily WatsonBehavior Technician1508464728
  6. Kaylah WatsonBehavior Technician1962178103
  7. Madison WatsonBehavior Technician1275291718
  8. Maleyja-Joanay WatsonBehavior Technician1184227696
  9. Margot Watson, MDObstetrics & Gynecology Physician1538160569
  10. Mary WatsonBehavior Technician1508678087
  11. Monique Watson, PT, DPT, OCSPhysical Therapist1427447515
  12. Nakia Watson, LCSWClinical Social Worker1083165054
  13. Nancy WatsonDoula1073845129
  14. Sherrita Watson, RNRegistered Nurse1407524051
  15. Brandon WattsMassage Therapist1528777687
  16. Marissa Watts, M.D.Internal Medicine Physician1720345358
  17. Mendel Wax, LGPCCounselor1154121853
  18. Lindsay Waxler, L.AC, M.AC., LMSWClinical Social Worker1548582869
  19. Jeremy Way, DDSGeneral Practice Dentistry1578229464
  20. Joelle Wazen, MDDiagnostic Radiology Physician1669824967
  21. Tamia WeathersBehavior Technician1134045685
  22. Shakirra WeathersbeeBehavior Technician1619564333
  23. Indiya WebbBehavior Technician1881313153
  24. Sarah Webber, LCSW-CClinical Social Worker1891368387
  25. William Webber, RPA-CPhysician Assistant1376065250
  26. Pamela Webster, D.C.Chiropractor1245453927
  27. Danielle WeedonBehavior Technician1225994684
  28. Lily WeiPhysical Therapist1033760434
  29. Tsal Wei, M.D.Anesthesiology Physician1598932626
  30. Thais Weibel, MDNeurology Physician1023060027
  31. Emily Weichert, M.S., CF-SLPSpeech-Language Pathologist1194618900
  32. Michelle Weill, LCPCMental Health Counselor1396158283
  33. Barry Weiner, LCSW-C , LCADCClinical Social Worker1407069305
  34. Deborah Weinreich, M.D.Family Medicine Physician1386882629
  35. Devorah WeinschneiderPediatric Nurse Practitioner1215709795
  36. Dylan WeinstockMental Health Counselor1043107253
  37. Noah Weintraub, PSY.D.Cognitive & Behavioral Psychologist1326258245
  38. Randi Weir, RNRegistered Nurse1265844088
  39. Amy Weishampel, LGPCMental Health Counselor1073150652
  40. Jade WeislettenBehavior Technician1235895129
  41. Andrew Weiss, MDCardiovascular Disease Physician1417276015
  42. Tracy Weitkamp, LGPATArt Therapist1548890429
  43. Melissa Welch, R.N.Registered Nurse1316474349
  44. Benorayehush Weldetsadik, M.D.Internal Medicine Physician1255579744
  45. Jessica Weldon, MA, CCC-SLPSpeech-Language Pathologist1568707578
  46. Laura Welker-Hood, SCD, MSN RNRegistered Nurse1467714170
  47. Naomi Weller, LCSW-CClinical Social Worker1740301811
  48. Danielle Weller-Roche, RNRegistered Nurse1255719167
  49. Hectoria WellsRegistered Nurse1386067866
  50. Phyllis Wells, CRNPObstetrics & Gynecology Nurse Practitioner1699776831

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.