NPPES file of Aug 9, 2026

Doctors and health care providers in Columbia, SC

11,200 individual NPPES records list a practice address in Columbia, 1st of 200 South Carolina cities. The largest group is behavior technician: 1,090, 10% of the city's records, against 4% across South Carolina. Page 151 of 224.

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 South Carolina

  • Rank in South Carolina1st of 200 cities by records
  • Share of the state13% of South Carolina's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.9% of all records
  • Behavior Technician rank1st of the 10 South Carolina cities with the most

Compared with South Carolina as a whole, Columbia has 2.4× the state's share of behavior technician records and 0.57× its share of speech-language pathologist records.

Providers in Columbia, alphabetically

  1. Alexandria OnealBehavior Technician1649122516
  2. Cara Oneill, MDPediatrics Physician1811929037
  3. Elizabeth Oneill, LPCProfessional Counselor1316294051
  4. Susan Oneppo, FAMILY TRAINERCase Manager/Care Coordinator1336480235
  5. Carl Onley, LDO,CLDO,ABOC,NCLEOptician1134854193
  6. Sarah Onofrio, PHARM.D.Pharmacotherapy Pharmacist1962841577
  7. Stella OnukwughaStudent in an Organized Health Care Education/Training Program1477347268
  8. Berthrand Onuoha, M.D.Hospitalist Physician1043504251
  9. Jude Onuoha, MDPublic Health & General Preventive Medicine Physician1124231519
  10. Joseph OquendoAddiction (Substance Use Disorder) Counselor1033606652
  11. Gunnar OrcuttSurgery Physician1457091381
  12. Kayla OrcuttStudent in an Organized Health Care Education/Training Program1295475119
  13. Zynasia OreeBehavior Technician1013711886
  14. Ryan Orland, MDFamily Medicine Physician1740776376
  15. Mark Orlandini, MDInterventional Cardiology Physician1386673879
  16. Carissa Orlando, PHDPsychologist1861744344
  17. Eric Ornstein, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1760861819
  18. Tudor Oroian, MDGastroenterology Physician1649705559
  19. Geoffrey OrokoPsychiatric/Mental Health Nurse Practitioner1881346443
  20. Byron Orr, PHARMDPharmacist1639428915
  21. J Orr, PHD LMFTMarriage & Family Therapist1083799050
  22. Leslie Orr, MSW, LMSWSocial Worker1619373487
  23. Travis OrrPharmacist1033560958
  24. Elizabeth Orred, M.A.Professional Counselor1396807376
  25. Veronica Ortiz, MDInternal Medicine Physician1811061062
  26. Eric Orton, PTPhysical Therapist1548990260
  27. Robert Ortuno, PHARMDPharmacist1396050019
  28. Stephen Osaguona, M.D.Nephrology Physician1346387388
  29. June Osavio, NPFamily Nurse Practitioner1447437959
  30. Katherine OsbornBehavior Technician1114878550
  31. Richard Osborn, O.T.R.Occupational Therapist1629017348
  32. Caroline Osborne, MDInternal Medicine Physician1740644376
  33. Jonathan OsborneFamily Nurse Practitioner1891419370
  34. Julia Osborne, MDOrthopaedic Surgery Physician1912523085
  35. Nicolas Osborne, MDEmergency Medicine Physician1245855154
  36. Sarah Osborne, COTA/LOccupational Therapy Assistant1386006609
  37. Raymond OseguedaCertified Registered Nurse Anesthetist1134795065
  38. Anna OsemanBehavior Analyst1093323248
  39. Serena Osher, CCC-SLPSpeech-Language Pathologist1548380918
  40. Jailan Osman, M.D.Hematology (Pathology) Physician1649460361
  41. Ryleigh OsmentBehavior Technician1811619018
  42. Denise Osolin, RNRegistered Nurse1003794629
  43. Brittany Osteen, APRNFamily Nurse Practitioner1154813780
  44. Cassandra Osteen, PTAPhysical Therapy Assistant1699214239
  45. Kayla OsteenFamily Nurse Practitioner1144850017
  46. Anders Oster, MDEmergency Medicine Physician1871119990
  47. Maja Osterman, MDChild & Adolescent Psychiatry Physician1932125127
  48. Yenny Otalora Rojas, MDEndocrinology, Diabetes & Metabolism Physician1568958551
  49. Jennifer Othersen, MDNephrology Physician1376631143
  50. Pamela Otoole, APRNFamily Nurse Practitioner1174835219

The largest South Carolina cities

  1. Charleston10,840
  2. Greenville10,264
  3. Spartanburg3,328
  4. Florence2,634
  5. Myrtle Beach2,599

All of South Carolina →

How to read this directory

Columbia, South Carolina appears in the CMS National Plan and Provider Enumeration System with 11,200 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 (1,090 clinicians, followed by Family Nurse Practitioner with 662 and Pharmacist with 586). 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 South Carolina's population, Columbia reports roughly 208.4 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.

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, SC?

There are 11,200 registered healthcare providers in Columbia, SC, 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, Family Nurse Practitioner, Pharmacist, Mental Health Counselor, Professional Counselor. Behavior Technician has the most providers with 1,090.

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.