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 86 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. Arun Nair, M.D.Emergency Medicine Physician1215220660
  2. Priyadarshini NairPharmacist1447528419
  3. Christa Nairn, RNRegistered Nurse1992451579
  4. Rony NakhlePharmacist1306459771
  5. Grace NakomolwaBehavior Technician1184571317
  6. Jasmine Nakrani, PHARMDPharmacist1700258936
  7. Sharon Nalley, R.N.Registered Nurse1003111766
  8. Nyjai Namasaka, RBTBehavior Technician1134906399
  9. Rebecca NamubiruBehavior Technician1184432361
  10. Sophia NanRegistered Nurse1255746616
  11. Janine Nance, RNRegistered Nurse1336526490
  12. Sasha NanjiPsychiatric/Mental Health Nurse Practitioner1336763077
  13. Sherry Narang Kalla, MDOphthalmology Physician1861659740
  14. Vijay Narayen, M.D.Gastroenterology Physician1538168422
  15. Sana Nasir, DDSPediatric Dentistry1518459544
  16. Sulivette Nater-Hernandez, PSY.D.Clinical Psychologist1639735806
  17. O'Neil NationBehavior Technician1578160941
  18. Javzandulam Natsag, M.D., PHDEndocrinology, Diabetes & Metabolism Physician1356575229
  19. Wendy Naumann, RNRegistered Nurse1497172258
  20. Emily NavaBehavior Technician1871424416
  21. Lynn Navarre, P.T.Physical Therapist1891715660
  22. Eric NavarroProfessional Counselor1710261524
  23. Joanna NavasRegistered Nurse1679901110
  24. Tina Navidi, M.D.Pediatrics Physician1669762977
  25. Jeanette Nazarian, MDCritical Care Medicine (Internal Medicine) Physician1518908458
  26. Macoline NchonganyiRegistered Nurse1093304974
  27. Fatu NdamaBehavior Technician1992696744
  28. Leah Ndenecho, PHARMDPharmacist1306625140
  29. Minet NdiBehavior Technician1134937592
  30. Amy Ndione, RNRegistered Nurse1609521970
  31. Erin NeagleBehavior Technician1023692076
  32. Karen Neal, LCSW-CClinical Social Worker1104962976
  33. Shanea NealBehavior Technician1326914763
  34. Donna Neale, MDMaternal & Fetal Medicine Physician1073596151
  35. Jamie Neary, AU.D.Audiologist-Hearing Aid Fitter1174719660
  36. Heather Neblett-Alexander, M.D.Pediatrics Physician1902818701
  37. Norman Neches, M.D.Obstetrics & Gynecology Physician1487617387
  38. Bruce Neckritz, D.O.Physical Medicine & Rehabilitation Physician1588669360
  39. Aaron NeelBehavior Technician1235927161
  40. Kathryn Neel, PH.D.Clinical Psychologist1902922339
  41. Paulo Negro, MDPsychiatry Physician1154337475
  42. Collette Neh BihHome Health Aide1568277135
  43. Maureen Nelis, L.AC.BOARD CERTIFIEDAcupuncturist1366771826
  44. Annette NelmsSpeech-Language Pathologist1386117430
  45. Tresa NelmsPharmacist1912508946
  46. Ashley NelsonSocial Worker1013408541
  47. Brittni NelsonBehavior Technician1467388967
  48. Lanea NelsonBehavior Analyst1316429574
  49. McKayla NelsonBehavior Technician1134014889
  50. Rachel Nelson, NURSE PRACTITIONERFamily Nurse Practitioner1518163666

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.