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 31 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. Jacob DemosBehavior Technician1487142287
  2. Ayanna DennisBehavior Technician1225923600
  3. Braxton DennisBehavior Technician1306703079
  4. Jacquelynn DennisRegistered Nurse1073923173
  5. Josephine Dennis, M.D.Family Medicine Physician1992803415
  6. Linda Dennis, FNPFamily Nurse Practitioner1437674850
  7. Susan Dennis, LMTMassage Therapist1568055523
  8. Nancy Denton, O.D.Optometrist1497950810
  9. Regina Deoud, LGPCCounselor1184412157
  10. Grace DepaulBehavior Technician1912845470
  11. Rebeccah Depp, FNPNurse Practitioner1972153849
  12. Anthony Der, LCPCMental Health Counselor1275025512
  13. Kiona DerichoBehavior Technician1801688957
  14. Melissa Dernetz, RNRegistered Nurse1457819237
  15. Arvind Desai, M.D.Geriatric Medicine (Family Medicine) Physician1851346423
  16. Paulomi Desai-Pandya, DDSGeneral Practice Dentistry1215263330
  17. Haianha Desamour, MDAnesthesiology Physician1275162844
  18. Aydelotte DeshieldsBehavior Technician1235707456
  19. Delena Deshields, RN, MSN/HCMRegistered Nurse1972988335
  20. Avani DeshpandeBehavior Technician1922995372
  21. Lisa Despres, MAC, LACAcupuncturist1760251722
  22. Asmamaw Desta, PHARMDPharmacist1225853849
  23. Daphne DestinyBehavior Technician1053153973
  24. Rajwinder Deu, M.D.Sports Medicine (Family Medicine) Physician1194749739
  25. Kelsey DeutschBehavior Technician1306780812
  26. Rachel DevincentzClinical Social Worker1891476420
  27. Eileen DeweyAddiction (Substance Use Disorder) Counselor1972191369
  28. Victoria DeweyBehavior Technician1982349460
  29. Angela DewsRegistered Nurse1033526082
  30. Peter Dexheimer, DCChiropractor1952401754
  31. Chayan DeyEmergency Medicine Physician1710913967
  32. Ruby Dey, M.D., M.P.H.Pediatrics Physician1407985484
  33. Tara Deyampert, M.D.Specialist1669430427
  34. Tiffini Deyampert, NPAdult Health Nurse Practitioner1285366450
  35. Lisa Deyulia, BSN, MSN, ANPAdult Health Nurse Practitioner1912185687
  36. Rakriti DhakalBehavior Technician1144150087
  37. Ravinder Dhallan, M.D.Emergency Medicine Physician1740538339
  38. Milan Dhanani, DDSOral and Maxillofacial Surgery (Dentist)1588191787
  39. Manisha Dhananjaya, DDSGeneral Practice Dentistry1346762507
  40. Nikitta DhillonPhysician Assistant1619515442
  41. Li Diao, L.A.CAcupuncturist1699098566
  42. Adelaida DiazBehavior Technician1932701802
  43. Michelle DiazBehavior Technician1235982844
  44. Noelle DiazSocial Worker1750174801
  45. Sophy DiazBehavior Technician1841966397
  46. Larissa Dichard, LCSW-CSocial Worker1669211579
  47. Tamra Dicken, RNRegistered Nurse1144996208
  48. Dorothea Dickens, CNM; APRNAdvanced Practice Midwife1902516248
  49. Jillian Dickenski, CRNPFamily Nurse Practitioner1700580438
  50. Elizabeth Dickerson, LMT, NMTMassage Therapist1396589198

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.