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 43 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. Gregory GaydoshBehavior Technician1457964207
  2. Jessica Gayle, RNRegistered Nurse1821440090
  3. Ruchama GaylerBehavior Technician1417878802
  4. Laura Gaylor, RNRegistered Nurse1306271887
  5. Tagnon Yanne Gbokede, RBTBehavior Technician1699658658
  6. Zenatsehay GebretsadikPsychiatric/Mental Health Nurse Practitioner1053087106
  7. Lauren Geisbert, DPTPhysical Therapist1124227400
  8. Ira Gelb, M.D.Sports Medicine (Orthopaedic Surgery) Physician1811991755
  9. Anne Gelber, NPNurse Practitioner1902106214
  10. Lisa GeldmacherRegistered Nurse1215412937
  11. Marlee Gelfand, LMSWSocial Worker1124784749
  12. Daniel GellerBehavior Technician1659216661
  13. Helen Gelso, LCSW-CClinical Social Worker1134293616
  14. Gemina GenaCardiac Rehabilitation Registered Nurse1538632211
  15. Christina Generie, ODOptometrist1255432928
  16. Andrea GeorgeOccupational Therapist1679031850
  17. Brittany GeorgeBehavior Technician1568987444
  18. Crystal GeorgeSpeech-Language Pathologist1518848175
  19. Niyah GeorgeBehavior Technician1669314894
  20. Stephen George, M.D.Rheumatology Physician1386628055
  21. Karen GeppiRegistered Nurse1790195899
  22. Maria Geppi, RNRegistered Nurse1093108995
  23. Mary Gerrard, PHDClinical Psychologist1538725452
  24. Tsehaye GesesewHospitalist Physician1831564319
  25. Robert Gessler, M.D.Urology Physician1427122498
  26. Selamawit GetachewEmergency Medicine Physician1215973656
  27. Kira GettisBehavior Technician1023787033
  28. Natalie Getzoff, M.D.Neurology Physician1558335380
  29. Rebecca Geurts, CRNPFamily Nurse Practitioner1295283984
  30. Rasa Ghaffarian, PHDHealth & Wellness Coach1063256949
  31. Nicole GhalebBehavior Technician1598572471
  32. Souzan GhareebRegistered Nurse1598176307
  33. Rukhsana GhauriBehavior Technician1144026949
  34. Mohammed Gheba, M.D.Surgery Physician1033130802
  35. Helen GherezghiherRegistered Nurse1629442439
  36. Hamidreza Ghorbaniparvar, DDSDentist1942864392
  37. Shadi Ghozati, D.D.SGeneral Practice Dentistry1578636510
  38. Jessica Giacobbe, LCPCMental Health Counselor1386359040
  39. Lauren GiampaBehavior Technician1043887797
  40. Christina GianeselloBehavior Technician1609659465
  41. Stephanie GianniAcupuncturist1609543677
  42. Frank Giargiana, M.D.Specialist1841326642
  43. Joseph Gibbons, M.D.Internal Medicine Physician1023124922
  44. Susanne Gibbons, CRNPNurse Practitioner1649287293
  45. Audrey Gibbs, RNRegistered Nurse1043799620
  46. Barbara GibbsBehavior Technician1528737905
  47. Amilya GibsonBehavior Technician1205706967
  48. Emily GibsonBehavior Technician1073275582
  49. Melissa Gidlund, O.D.Optometrist1821167867
  50. Heather GiffordPharmacist1477944403

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.