NPPES file of Aug 9, 2026

Doctors and health care providers in Indianapolis, IN

30,493 individual NPPES records list a practice address in Indianapolis, 1st of 269 Indiana cities. The largest group is students in training: 3,054, 10% of the city's records, against 4% across Indiana. Page 404 of 610.

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

The 8 largest groups in Indianapolis

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

Indianapolis in Indiana

  • Rank in Indiana1st of 269 cities by records
  • Share of the state25.4% of Indiana's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.2% of all records
  • Students in training rank1st of the 10 Indiana cities with the most

Compared with Indiana as a whole, Indianapolis has 2.6× the state's share of student in an organized health care education/training program records and 0.63× its share of behavior technician records.

Providers in Indianapolis, alphabetically

  1. Keila Ortiz-OrnelasBehavior Technician1043006331
  2. Victoria OrtmanBehavior Technician1831985787
  3. Robert Ortmann, MDRheumatology Physician1215987185
  4. Jasmine OrttBehavior Technician1275341554
  5. Carrie Ortwein, NPGerontology Nurse Practitioner1780634139
  6. Cameron Ortyl, ATCAthletic Trainer1205361557
  7. Ukamaka Oruche, MSN, RN, CSChild & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist1164528907
  8. Senica Orukpe, MSWMental Health Counselor1053607671
  9. Helena OsakAddiction (Substance Use Disorder) Counselor1356591317
  10. Bianca OsakwePsychiatric/Mental Health Nurse Practitioner1649638388
  11. Osarueme OsazeeRegistered Nurse1992696256
  12. Eric OsbornStudent in an Organized Health Care Education/Training Program1225875032
  13. Lee Osborn, M.D.Pediatrics Physician1083601884
  14. Taylor Osborn, DOStudent in an Organized Health Care Education/Training Program1114711744
  15. Victoria Osborn, NPGerontology Nurse Practitioner1619357019
  16. Maria Osborne, P.T.Physical Therapist1750422234
  17. Mark Osborne, M.D.Physical Medicine & Rehabilitation Physician1770870636
  18. Shawna OsborneBehavior Technician1942821814
  19. Vernon Osburn, NPAdult Health Nurse Practitioner1144569203
  20. John Oscherwitz, MDAnatomic Pathology & Clinical Pathology Physician1013994284
  21. Nanette Oscherwitz, MDCardiovascular Disease Physician1316946684
  22. Jemina Osei, M.D.Clinical Cardiac Electrophysiology Physician1528328523
  23. Wilberforce Osei, PHARMDPharmacist1134713910
  24. Sharon Oser-EvansSchool Social Worker1154366441
  25. Jamie Osgatharp, HSPPClinical Psychologist1235525080
  26. Melissa Osha, R.PH.Pharmacist1497792899
  27. Olamide OshikomayaBehavior Technician1235939398
  28. Jennifer Oshimura, MDPediatrics Physician1063621662
  29. Connell OshodiStudent in an Organized Health Care Education/Training Program1316750102
  30. Oskar Oskarson, MDHematology & Oncology Physician1760482525
  31. Alicia Oskay, RDN, LMT, C-IAYTRegistered Dietitian1629201603
  32. Joli Osman, MDStudent in an Organized Health Care Education/Training Program1154268779
  33. Natalia Osman, PMHNPPsychiatric/Mental Health Nurse Practitioner1366335754
  34. Vahid Osman, MDPsychiatry Physician1740264720
  35. Stanley Osmunson, ED.D.Clinical Psychologist1659443240
  36. Gregg Ossip, O.D.Optometrist1528123460
  37. Karl Ost, M.D.Family Medicine Physician1942233358
  38. Paige Ostahowski, MDEmergency Medicine Physician1841795366
  39. Samantha Osteen, MDObstetrics & Gynecology Physician1245735117
  40. Todd Osterbur, PA-CPhysician Assistant1336290360
  41. Christine Ostermeyer, DVMVeterinarian1285936120
  42. Brigette OstreaContractor1992030720
  43. Vincent Ostrowski, M.D.Otology & Neurotology Physician1861495533
  44. Olawale Osuntokun, M.D.Psychiatry Physician1134287527
  45. Kristen Oswald, LMHCMental Health Counselor1700526845
  46. Tyler Oswald, LMHCMental Health Counselor1548786551
  47. Randall OswaltBehavior Technician1386215499
  48. Safy Othman, MDStudent in an Organized Health Care Education/Training Program1124706833
  49. Breyanna Otlewski, PA-CPhysician Assistant1396339263
  50. James Otomewo, RNRegistered Nurse1396430088

The largest Indiana cities

  1. Fort Wayne9,203
  2. Evansville4,352
  3. Carmel3,727
  4. Bloomington3,287
  5. South Bend3,178

All of Indiana →

How to read this directory

Indianapolis, Indiana appears in the CMS National Plan and Provider Enumeration System with 30,493 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 Indianapolis - 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 Indianapolis 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 Indianapolis is weighted toward Student in an Organized Health Care Education/Training Program (3,054 clinicians, followed by Behavior Technician with 2,740 and Clinical Social Worker with 1,574). 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 Indiana's population, Indianapolis reports roughly 444.4 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 Indianapolis 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 Indianapolis, IN?

There are 30,493 registered healthcare providers in Indianapolis, IN, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Indianapolis?

The most common specialties in Indianapolis are Student in an Organized Health Care Education/Training Program, Behavior Technician, Clinical Social Worker, Mental Health Counselor, Pharmacist. Student in an Organized Health Care Education/Training Program has the most providers with 3,054.

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.