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 30 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. Sommer DavisBehavior Technician1245804335
  2. Stacey Davis, LCSW-CClinical Social Worker1003138538
  3. Taylah DavisBehavior Technician1487498325
  4. Ariel Davis- Gilmore, FNP-CFamily Nurse Practitioner1710870761
  5. Martha Davis-Massey, RNRegistered Nurse1497118426
  6. Tarra Dawkins, LMTMassage Therapist1598520983
  7. Clarita Dawson, M.D.Anesthesiology Physician1649246554
  8. Laurie DayClinical Social Worker1134964208
  9. Shannon DayBehavior Technician1699605923
  10. Lourdes De Las AlasFamily Nurse Practitioner1285246272
  11. Fernando De Leon, M.D.Pulmonary Disease Physician1922003060
  12. Isabel De Leon-Alegado, M.D.Anesthesiology Physician1760458681
  13. Mariana De Matos Medeiros, LMSWSocial Worker1548001837
  14. Arnaulia De SouzaBehavior Technician1194570945
  15. Brittney De Vicq, L.AC.Acupuncturist1235460478
  16. Jennifer Deal, LCSW-CClinical Social Worker1154121085
  17. Leanora Dean, R.N.Registered Nurse1073901567
  18. Mary DearstineAcupuncturist1205252798
  19. Patricia Death, RNRegistered Nurse1528308277
  20. Kimberly Deberry, PH.D.Psychologist1962721449
  21. Bethelihem DebesaiInterpreter1942147491
  22. Lisa Decker, RNRegistered Nurse1245704501
  23. Frederick Dedolph, LMTMassage Therapist1679291538
  24. Cyrillia DeenRegistered Nurse1043695406
  25. Helen Deen, RNRegistered Nurse1932685534
  26. Julia Deets, ATR-BC, LCPATArt Therapist1992449516
  27. Stephen Defino, LCPCMental Health Counselor1457746943
  28. Laura Defrancesco, PTAPhysical Therapy Assistant1740864032
  29. Marie Defrancesco-Malviya, CRNACertified Registered Nurse Anesthetist1376594010
  30. Caitlin Defrehn, COTAOccupational Therapy Assistant1023955366
  31. Adil Degani, MDInternal Medicine Physician1790965481
  32. Amanda Dehenzel, RN BSNRegistered Nurse1497309561
  33. Liz Del Hoyo, MS, RDNRegistered Dietitian1568994283
  34. Brooke DelanePhysical Therapy Assistant1336413103
  35. Stephanie Delaney, PSYDMental Health Counselor1609237700
  36. Ana Delariva-AvinaBehavior Technician1366232969
  37. Anahja DeleeBehavior Technician1134848112
  38. Joanna Delfin, CPNP-PCPediatric Nurse Practitioner1194199190
  39. Kimberlyn DelgadilloBehavior Analyst1033688361
  40. Mylinh Delgado, O.D.Optometrist1245319086
  41. Nelson Delgado, O.D.Optometrist1770601106
  42. Ida Deliberis, PSY.D.Clinical Psychologist1750720744
  43. Danielle Delice, RNRegistered Nurse1861847055
  44. Dana DelisioBehavior Technician1285579763
  45. Linda Dellarose, REGISTERED NURSERegistered Nurse1497227193
  46. Stephanie Delore, RN, BSNRegistered Nurse1053853523
  47. Joseph Delrosso, DC, PTChiropractor1104897669
  48. Lindsey DemarestBehavior Technician1679456669
  49. Cara DementSocial Worker1659223014
  50. Turkessa Demisse, LCSW-CClinical Social Worker1215457866

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.