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 121 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. Ursula Tillery, RO1702Massage Therapist1457204489
  2. Chantel TillmanBehavior Technician1275263360
  3. Sheena TillmanOptician1417190638
  4. Stevette TillmanBehavior Technician1568065076
  5. Myra Tilson, NPPsychiatric/Mental Health Nurse Practitioner1619219912
  6. Abigail TimbolBehavior Technician1487220653
  7. Kaleanna TimmonsBehavior Technician1255297818
  8. Dawn Tippett, MSW, LCSW-C, CTClinical Social Worker1659634228
  9. Jennifer Tippetts, LMTMassage Therapist1316875107
  10. Lynnet TirabassiRegistered Nurse1457773764
  11. Snezana TismaBehavior Technician1013500164
  12. Amy TissiereSocial Worker1851943179
  13. Mikayla TissueBehavior Technician1831768423
  14. Christin TitusDoula1467248948
  15. Jeremy TlauBehavior Technician1790579696
  16. Vivien To, MDAdult Medicine Physician1245334408
  17. Rhodneisha ToatleyLicensed Practical Nurse1114479276
  18. Bennies ToeBehavior Analyst1679287015
  19. Cory ToegelBehavior Analyst1558989863
  20. Michelle Tokman, DDSDentist1518853233
  21. Robin Toler, M.D.Psychiatry Physician1538288444
  22. Valeree Tolios, LMSW, CSC-ADMental Health Counselor1285103846
  23. Nahide TombakBehavior Technician1578436267
  24. Jennifer Toms, RN, BSNRegistered Nurse1922497585
  25. Patrick Tong, M.D., PH.D.Ophthalmology Physician1205861028
  26. Sara Tongue, RNRegistered Nurse1831533793
  27. Diana Toogood, PHARM DPharmacist1053652768
  28. Deborah TooleRegistered Nurse1811586118
  29. Nicole TopasnaBehavior Technician1699662882
  30. Cynthia TopperRegistered Nurse1306261037
  31. Alyssa Toran, LCSW-CClinical Social Worker1215329834
  32. Margaret TorpBehavior Technician1831869643
  33. Vincent TorrenteSocial Worker1902652613
  34. Alycia TorresBehavior Technician1215674098
  35. Claudia TorresPsychiatry Physician1588598643
  36. Keyla Torres, DMD, MSPeriodontics1811126261
  37. Erik Torres VasquezBehavior Technician1295523066
  38. Ginamarie TorrisonMental Health Counselor1083312482
  39. Danyel TorsellBehavior Technician1912857202
  40. Edmund Tortolani, M.D.Specialist1376519322
  41. Paul TortoraBehavior Technician1659249951
  42. Melissa TothSpeech-Language Pathologist1326517640
  43. Alejandra Tovar ArguetaBehavior Technician1922744424
  44. Emily TownsendSpeech-Language Pathologist1225500838
  45. Kathryn TraceyRegistered Nurse1508277112
  46. Karen Trageser, RNRegistered Nurse1710417548
  47. April Trammell, RN,BSNRegistered Nurse1356726715
  48. Kevin Tran, DPTPhysical Therapist1720947138
  49. Stephanie TranBehavior Technician1417625138
  50. Thao TranPsychiatric/Mental Health Nurse Practitioner1003616699

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.