NPPES file of Aug 9, 2026

Doctors and health care providers in Columbus, OH

36,491 individual NPPES records list a practice address in Columbus, 1st of 711 Ohio cities. The largest group is case manager/care coordinator: 3,958, 11% of the city's records, against 11% across Ohio. Page 407 of 730.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Columbus

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Columbus in Ohio

  • Rank in Ohio1st of 711 cities by records
  • Share of the state11.2% of Ohio's records
  • Specialties present25 or more taxonomy codes
  • Top three groups19.6% of all records
  • Case Manager/Care Coordinator rank1st of the 10 Ohio cities with the most

Compared with Ohio as a whole, Columbus has 1.8× the state's share of anesthesiology physician records and 0.59× its share of physical therapist records.

Providers in Columbus, alphabetically

  1. David Marcus, MDEmergency Medicine Physician1306856620
  2. Mason Marek, RNRegistered Nurse1215735626
  3. Kasey Marelic, MDReproductive Endocrinology Physician1538467683
  4. Mindy Marfurt, MASpeech-Language Pathologist1174933386
  5. Richard Marger, M.D.Obstetrics & Gynecology Physician1285604272
  6. Leon Margolin, MDPain Medicine Physician1619178308
  7. Steven Margolis, MDAnesthesiology Physician1639411689
  8. Jack Mariani, MDStudent in an Organized Health Care Education/Training Program1104628353
  9. Amanda Mariano, PA-CPhysician Assistant1740631886
  10. Ashton MaricocchiInternal Medicine Physician1053162032
  11. Jonathan Marilao, MDPediatric Rheumatology Physician1295430999
  12. Alexis MarinSpeech-Language Pathologist1518474022
  13. Carolina MarinasAcute Care Nurse Practitioner1760117659
  14. Denise MarincicAddiction (Substance Use Disorder) Counselor1700647245
  15. Jake MarincicPeer Specialist1982521381
  16. Michael MarinelliAddiction (Substance Use Disorder) Counselor1609650373
  17. Isabella MarinoPhysician Assistant1417768789
  18. Theresa MarinoSocial Worker1265926190
  19. Anna MarinovMarriage & Family Therapist1780514091
  20. Karsen MariothSocial Worker1285484261
  21. Angelo Mariotti, DDS, PHDPeriodontics1538237664
  22. Shelby Mark, QMHS 3YR CMSSocial Worker1174290589
  23. Megan Markakis, LPCC-SProfessional Counselor1861816837
  24. Charlene Markarian, PCCProfessional Counselor1225172679
  25. Taylor Markell, DOEmergency Medicine Physician1861054868
  26. Alison Marker, MSW, LISWClinical Social Worker1912195892
  27. Robert MarkerHospitalist Physician1477202174
  28. Jacob Markey, PHARMDPharmacist1073115721
  29. Leigh Markham, LSWSocial Worker1568507010
  30. Daniel Markiewitz, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1861915738
  31. Natalie Markis, R.N., B.S.N.Registered Nurse1235462953
  32. Mariah Markley, CNPAcute Care Nurse Practitioner1508759812
  33. Stephen Markovich, MDFamily Medicine Physician1578553517
  34. Abigail MarksCase Manager/Care Coordinator1730001843
  35. Allison Marks, PA-CPhysician Assistant1831910009
  36. Catherine Marks, LPCCProfessional Counselor1508935206
  37. Emily MarksAthletic Trainer1659116341
  38. Haley MarksCase Manager/Care Coordinator1073089082
  39. Maxwell MarksStudent in an Organized Health Care Education/Training Program1316892540
  40. Tracey Marks, CRNACertified Registered Nurse Anesthetist1396701991
  41. Kimberly Markwell, OTR/LOccupational Therapist1205805348
  42. Natalie MarlerCase Manager/Care Coordinator1639673809
  43. Nina Marley, LPNLicensed Practical Nurse1346471844
  44. Meighan Marlo, PHARMDPharmacist1548002603
  45. Melissa Marlow, PHARMDPharmacist1497120505
  46. Allie Marohl, CNMAdvanced Practice Midwife1760762520
  47. Mark Marohl, D.C.Chiropractor1669436390
  48. Kristi MaroniPsychiatry Physician1730393125
  49. Bijesh Maroo, MDCardiovascular Disease Physician1386834737
  50. Toni Maroo, NPGerontology Nurse Practitioner1912197047

The largest Ohio cities

  1. Cincinnati31,362
  2. Cleveland30,748
  3. Toledo13,583
  4. Dayton12,431
  5. Akron10,950

All of Ohio →

How to read this directory

Columbus, Ohio appears in the CMS National Plan and Provider Enumeration System with 36,491 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 Columbus - 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 Columbus 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 Columbus is weighted toward Case Manager/Care Coordinator (3,958 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,724 and Social Worker with 1,484). 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 Ohio's population, Columbus reports roughly 309.6 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 Columbus 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 Columbus, OH?

There are 36,491 registered healthcare providers in Columbus, OH, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Columbus?

The most common specialties in Columbus are Case Manager/Care Coordinator, Student in an Organized Health Care Education/Training Program, Social Worker, Clinical Social Worker, Pharmacist. Case Manager/Care Coordinator has the most providers with 3,958.

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.