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 55 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. Stephanie Hord-Wallace, LCSW-CClinical Social Worker1740075423
  2. Primrose Horn, RNRegistered Nurse1609281021
  3. Erin Horstman, RNRegistered Nurse1184132557
  4. Ashley HortonBehavior Technician1538005764
  5. Jared HortonBehavior Technician1669968822
  6. Elizabeth HortopanRegistered Nurse1396150694
  7. Janet Hosford-Lamb, LCSW-CClinical Social Worker1649384454
  8. Anlara Hoskins, MABehavior Analyst1821564030
  9. Kathryn Hoskins, M.D.Family Medicine Physician1285806158
  10. Syntiche Hotou Mejonang, HHAHome Health Aide1396397212
  11. Cory Hough, DPTPhysical Therapist1609420637
  12. Katherine Mansfield Houle, PSY.D., M.S.W., B.S.Clinical Social Worker1124250923
  13. Laura Hourani, RNRegistered Nurse1487065280
  14. Holly Housen, M.A., LCPCMental Health Counselor1952573354
  15. Destiny HoustonBehavior Technician1083425367
  16. Donald HoustonBehavior Technician1356272892
  17. James Houston, MDPain Medicine (Anesthesiology) Physician1003820119
  18. Narine HovhannisyanClinical Social Worker1689426819
  19. Antoinette HowardBehavior Technician1245902758
  20. Donald Howard, LCSW-CClinical Social Worker1871080309
  21. Jade HowardBehavior Technician1285456996
  22. Ludley Howard, MSWClinical Social Worker1023375763
  23. Mackenzie HowardBehavior Technician1083532287
  24. Malin Howard, M.D.Ophthalmology Physician1962409011
  25. Sydney Howard-Vannoy, LCSW-CClinical Social Worker1306194899
  26. Phillip HowdenBehavior Technician1194490540
  27. Jenna HowerBehavior Technician1700597515
  28. Kelly Howeth, RNRegistered Nurse1962992305
  29. Erika Hoxworth, MS, LCMFTMarriage & Family Therapist1073723201
  30. Jennifer Hrynko, MSN, CRNP, RNAdult Health Nurse Practitioner1003580804
  31. Angie HuangBehavior Technician1225713498
  32. Leanne HuangBehavior Technician1710824693
  33. Belinda HuaylinosBehavior Technician1245083575
  34. Tory HubbardBehavior Technician1932754512
  35. Jennifer Hudnall, MA, BCBABehavior Analyst1851962286
  36. Jill Hudock, M.AC.,L.AC.Acupuncturist1932461910
  37. Brenna HuerbinBehavior Technician1265368419
  38. Diane Huey, L.AC.Acupuncturist1326234824
  39. Norman HuffmanMarriage & Family Therapist1649426966
  40. Priscilla HuffmanBehavior Technician1295472405
  41. Victoria HughesBehavior Technician1467128066
  42. Kelly Hukmani, LCSW-CClinical Social Worker1649597873
  43. Susan Hull, PTPhysical Therapist1245376284
  44. Tamara Hull, LCMFTMarriage & Family Therapist1245906536
  45. Pamela Humeston, RNRegistered Nurse1952787178
  46. Marja Humphrey, PHD, NCC, LGPCProfessional Counselor1700507621
  47. Hannah HumphriesBehavior Technician1295335370
  48. Carrie HundleyRegistered Nurse1285009365
  49. Lydia HuntNurse Practitioner1942773445
  50. Sherrie HuntHearing Instrument Specialist1326745068

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.