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 44 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. Natalie Gignac, RNRegistered Nurse1306354154
  2. Cindy GilbertPhysical Therapist1649810979
  3. Matt GilbertPhysical Therapy Assistant1831081306
  4. Raquel Gilbert-Quashie, RN CCMRegistered Nurse1093264921
  5. Derek Gilchrist, LCSW-CClinical Social Worker1730506825
  6. Chiquice GilesBehavior Technician1962966291
  7. Adele Gill, LACAcupuncturist1871709766
  8. Gabriella GillBehavior Technician1528848017
  9. Katherine GillFamily Nurse Practitioner1659074391
  10. Madison Gillen, PT, DPTSports Physical Therapist1265208268
  11. Pierre GillesBehavior Technician1366229098
  12. Aurora GillespieBehavior Technician1669151544
  13. Edward Gillis, DDSGeneral Practice Dentistry1164427688
  14. Julia GilloranBehavior Analyst1386370641
  15. Holly Gillum, LCSW-CClinical Social Worker1013120278
  16. Gabriella Gilpin, NONEBehavior Technician1922679877
  17. Sarah GingerelliBehavior Analyst1386289817
  18. Dennis Ginsberg, M.D.Obstetrics & Gynecology Physician1114955226
  19. Kyle GinsburgBehavior Technician1922863380
  20. Jessica GiorgiBehavior Analyst1508521691
  21. Christopher GiorgioSurgery Physician1841986015
  22. Elizabeth GiulianiBehavior Analyst1659914695
  23. Brendan Glackin, DPT, OCSPhysical Therapist1932565298
  24. Shadaia GladdenBehavior Technician1376201400
  25. Keyona GlanvilleBehavior Technician1740987791
  26. Dean Glaros, MDOphthalmology Physician1588627624
  27. Alanna GlassBehavior Technician1841007960
  28. Heather Glass, R.N.Registered Nurse1093178022
  29. David Glasser, M.D.Ophthalmology Physician1275501785
  30. Hannah Glassman, LMSWClinical Social Worker1750255071
  31. K.c. GleatonContractor1760104434
  32. Shaneeka GleatonRegistered Nurse1104368687
  33. Susan Gleazer, MDPediatrics Physician1033175948
  34. Isabella GlevickyBehavior Technician1215894811
  35. Sean Gloth, MDCardiovascular Disease Physician1376538934
  36. Jeanne Glover, R.N.Registered Nurse1659706133
  37. Melissa Glover, R.N.Registered Nurse1760899702
  38. Dinup Gnyawali, PTAPhysical Therapy Assistant1629458443
  39. Mona GobrailPsychiatric Pharmacist1912019175
  40. Elisabeth GodfreyBehavior Technician1750251088
  41. Preston GodownBehavior Technician1750200010
  42. Anita Godra, M.D.Anatomic Pathology & Clinical Pathology Physician1477585909
  43. Susan Godzuk, R.NRegistered Nurse1518394972
  44. Christina Goff, REGISTERED NURSERegistered Nurse1730610973
  45. Kayla GoffinetSocial Worker1700745262
  46. Seyigbena Goito, MDBehavior Technician1154106532
  47. Adiam Goitom, M.D.Obstetrics & Gynecology Physician1164481669
  48. David Gold, PHDClinical Psychologist1134127236
  49. Kallyn GoldBehavior Technician1912859638
  50. Alyssa Goldberg, BCBABehavior Analyst1316770548

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.