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 122 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. Bach-Tuyet Tran-JeffreyGeneral Practice Dentistry1801934443
  2. Edward Trapani, MDDiagnostic Radiology Physician1245206887
  3. Katherine Travers, MSW, LCSW-CClinical Social Worker1780897397
  4. Amanda Travis, RDHDental Hygienist1881285807
  5. Patricia Travis, CRNACertified Registered Nurse Anesthetist1710079561
  6. Marquisha TraylorBehavior Technician1073115416
  7. Spencer Tredo, PTPhysical Therapist1124234877
  8. Sara Trescott, LCPC, NCCProfessional Counselor1003287905
  9. Jean Tretler, R.N., IBCLCLactation Consultant (Registered Nurse)1336630748
  10. Carla Trevizo, PTAPhysical Therapy Assistant1962969600
  11. Anh TrinhRegistered Dietitian1669313151
  12. Kaylee TriplettBehavior Technician1124788740
  13. Logan TrottBehavior Technician1386565810
  14. Mary Trotter, MASSAGE THERAPISTMassage Therapist1033678677
  15. Lopaka Trout, PHARMDPharmacist1730794678
  16. Lauren TrumanSocial Worker1720852411
  17. Loretta Trumble, CRNPNurse Practitioner1023065679
  18. Teresa TrumpRegistered Nurse1750875035
  19. Cam Hong Truong, D.C.Rehabilitation Chiropractor1316385230
  20. Alice Tsai, MDPediatrics Physician1033116199
  21. Allan Tsai, DDSDentist1326237173
  22. Jackson Tsai, MDPediatric Emergency Medicine (Pediatrics) Physician1497780183
  23. Kathryn Tsai, LCSW-CClinical Social Worker1366772824
  24. Melissa Tsang, PA-CPhysician Assistant1053524454
  25. Trent Tschirgi, R.PH., CGPGeriatric Pharmacist1538170592
  26. Rachel Tsimbidis, LCSW-CClinical Social Worker1477802007
  27. Kristyn TsuBehavior Technician1033709084
  28. Nadu Tuakli, M.D.Family Medicine Physician1811943392
  29. Alexcia TuckerBehavior Technician1386561702
  30. Ashley TuckerRegistered Nurse1891100210
  31. Golda Tucker, CRNPFamily Nurse Practitioner1275393910
  32. Michelle Tucker, MSWClinical Social Worker1790710432
  33. Noah TuckerPhysical Therapist1225504426
  34. Sarah TuckerBehavior Technician1588451710
  35. Francois TueguoPsychiatric/Mental Health Nurse Practitioner1730870783
  36. Ryheam TullBehavior Technician1346192838
  37. Samantha Tulloch Benedict, BCBABehavior Analyst1548746910
  38. Jana Tumaneng, PT, DPTPhysical Therapist1467382747
  39. Zaw Tun, M.D.Internal Medicine Physician1346587060
  40. Molly Tupta, DPTPhysical Therapist1376254664
  41. Adam TurnbullBehavior Technician1447181243
  42. Serpil Turnbull, PMHNPPsychiatric/Mental Health Nurse Practitioner1306618301
  43. Angel Turner, RBTBehavior Technician1366037673
  44. Dietra TurnerBehavior Technician1528856671
  45. Gauri Turner, M.D.Anesthesiology Physician1225230493
  46. Kimberly Turner, M.D.Specialist1962418855
  47. Leah Turner, M.AC., L.AC.Acupuncturist1174934475
  48. Lenore Turner, LCPCProfessional Counselor1982039210
  49. Robin TurnerBehavior Technician1184428211
  50. Terri Turner, M.D.Psychiatry Physician1336307883

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.