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 23 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. Imtiaz Chowdhry, M.D.Specialist1699741439
  2. Imran Chowdhury, MDSpecialist1396747549
  3. Jocelyn ChristianMental Health Counselor1205514015
  4. Maggie ChristianSpeech-Language Pathologist1114485422
  5. Payal Christian, CRNPAcute Care Nurse Practitioner1871992933
  6. Valerie ChristianReligious Nonmedical Practitioner1730733601
  7. Cynthia Christiani, RNRegistered Nurse1881006617
  8. Hannah ChristieBehavior Technician1336808708
  9. Irina Christin, LCPCProfessional Counselor1164980785
  10. Nguyenanh Chu, D.D.S.Dentist1730477670
  11. Virginia ChuBehavior Technician1730037151
  12. Mary Beth Chubb, LCSW-CClinical Social Worker1396018008
  13. Alexander Chudnovsky, MDCardiovascular Disease Physician1639147317
  14. Francis Chuidian, M.D.Pulmonary Disease Physician1497750541
  15. Chukwuamaka ChukwumobiBehavior Technician1073379863
  16. Sophie ChungBehavior Technician1194613315
  17. Uei Chung, M.D.Gynecology Physician1487737193
  18. Johana ChungaBehavior Technician1629785118
  19. William Churchfield, LBS, BCBABehavior Analyst1417623372
  20. Laura Churns, PHARM.D.Pharmacist1922350966
  21. Domenic Cieri, LCPCMental Health Counselor1225484868
  22. Jessica Cifuentes-CaravantesBehavior Technician1407679590
  23. Marilyn Cimonetti, LCPCProfessional Counselor1396075776
  24. Jennifer Ciotola, RN, BSNRegistered Nurse1881085462
  25. Cynthia Cisneros, L.C.P.C.Professional Counselor1730432691
  26. Marcia ClaiborneRegistered Nurse1003209909
  27. Dorothy Clancy, M.S., C.N.S.Nutritionist1427281872
  28. Michael Clancy, LCPC, LCADCMental Health Counselor1346276292
  29. Ferris Clare, LPCAProfessional Counselor1962070656
  30. Barbara Clark, R.N.Registered Nurse1194136994
  31. Brandon Clark, CSC-ADAddiction (Substance Use Disorder) Counselor1972054393
  32. Channing Clark, LCPCMental Health Counselor1306388293
  33. Dana Clark, DCChiropractor1306252853
  34. Hannah Clark, RNLactation Consultant (Registered Nurse)1366279879
  35. Heather Clark, RNRegistered Nurse1407289994
  36. Jillian Clark, LCSW-CClinical Social Worker1962173880
  37. Marcus ClarkAssistant Behavior Analyst1528850385
  38. Mary ClarkBehavior Technician1194651380
  39. Melissa Clark, M.D.Family Medicine Physician1346236775
  40. Renee ClarkMarriage & Family Therapist1194359349
  41. Shakya ClarkBehavior Technician1164212213
  42. Cindy Clark-Pizzo, R.N.Registered Nurse1336543172
  43. Christina Clarke, MDDermatology Physician1972947059
  44. Jayyidah Clarke, LCSW-CClinical Social Worker1811420615
  45. Racquel ClarkePhysical Therapist1841021342
  46. Winston Clarke, LICSWSchool Social Worker1902233018
  47. Cassandra Clarke-Williams, PH.D, LGPCMental Health Counselor1912404526
  48. Daiana Claros RochaBehavior Technician1043950082
  49. Dean Clatworthy, PTPhysical Therapist1922025667
  50. Carla Clavelle, PH.D.Clinical Psychologist1578784989

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.