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 42 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. Robert Gambrell, LCPCProfessional Counselor1942680095
  2. Pamela Gandy, M.AC., L.AC.Acupuncturist1164768701
  3. Grace Ganel, L.AC.Acupuncturist1710442165
  4. Victoria GangeBehavior Technician1427626605
  5. Angela Gangloff, NPFamily Nurse Practitioner1851056790
  6. Shadi Ganjavi, PHARMDPharmacist1235964032
  7. Kayla GanoeBehavior Technician1508792912
  8. Stephen Gant, D.D.S.Dentist1013041425
  9. Cynthia GaoPediatrics Physician1609453190
  10. Grace GaoBehavior Analyst1376467936
  11. Shuna Gao, MDAnesthesiology Physician1043848401
  12. Niurka Garay CruzBehavior Technician1831016963
  13. Susana Garaycochea, RNRegistered Nurse1700442183
  14. George Garbis, DDSGeneral Practice Dentistry1114080678
  15. Chellsea GarbuttBehavior Technician1982402061
  16. Ana Maria Garcia, PSYDClinical Psychologist1215095625
  17. Melanie GarciaBehavior Technician1952026973
  18. Nina Garcia, P.A.Medical Physician Assistant1508926817
  19. Rubylyn GarciaRegistered Nurse1043623754
  20. Limary Garcia-Gonzalez, MDPediatrics Physician1922533264
  21. Shantee Nicole GardeBehavior Technician1669250171
  22. Dean Gardella, MDDiagnostic Radiology Physician1174667034
  23. Carole Gardiner, CRNACertified Registered Nurse Anesthetist1568439354
  24. Lesley GardinerBehavior Technician1477385789
  25. Allison Gardner, FNP-BCFamily Nurse Practitioner1528600707
  26. Bridget GardnerBehavior Analyst1578236923
  27. Jase GardnerBehavior Technician1033072806
  28. Kelsey GardnerAssistant Behavior Analyst1285109926
  29. Meredith GardnerBehavior Technician1225811391
  30. Sadie GardnerBehavior Technician1437995990
  31. Sheree Gardner, R.N.Registered Nurse1174986103
  32. Krysten GarnerBehavior Analyst1205329083
  33. Jane Garrell, R.N.Registered Nurse1649766999
  34. Alexis Garrett, LGPCProfessional Counselor1043929433
  35. Brianna GarrettFamily Nurse Practitioner1386334324
  36. Lanisha Garrett, DCChiropractor1326813817
  37. Emily Garrison, LGPCMental Health Counselor1013172592
  38. Joanna GarrisonRegistered Nurse1255746673
  39. Margaret GarrisonRegistered Nurse1891114971
  40. Michelle Garrison, M.S.Speech-Language Pathologist1053926022
  41. Therese Garroway, L.C.P.C.Marriage & Family Therapist1336237874
  42. Stephanie GartlandRegistered Nurse1821463902
  43. Tyus GaskinBehavior Technician1245024769
  44. Nakiliah GaskinsBehavior Technician1366380388
  45. Sharon Gaskins, RNRegistered Nurse1598272387
  46. Sherita Gaskins, M.D.Obstetrics & Gynecology Physician1942469374
  47. Diane Gaspar, P.A. - C.Physician Assistant1245459734
  48. Aaron Gates, DDSDentist1306332614
  49. Jeannette Gatewood, RNRegistered Nurse1881939262
  50. Jonathan GathjeBehavior Technician1376495713

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.