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 402 of 610.
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
- Jeffrey Olson, DOClinical Cardiac Electrophysiology Physician1629047907
- Jessica Olson, ODOptometrist1710876990
- Michael Olson, PACSurgical Physician Assistant1841403268
- Michael Olson, DCChiropractor1033363874
- Patricia Olson, L.C.S.W.Clinical Social Worker1174640627
- Patricia Olson, MD, PHDNeurology Physician1295230498
- Sarah OlsonPediatrics Physician1275114589
- Youngsook Olsson, NPAdult Health Nurse Practitioner1083773634
- Jennifer Olston, LCSWClinical Social Worker1568446441
- Chinonye Olumba, MDStudent in an Organized Health Care Education/Training Program1265278378
- Segun OluwaniyiBehavior Technician1396545208
- Abimbola OluwasesinPsychiatric/Mental Health Nurse Practitioner1285273573
- Cynthia OluwatoyeBehavior Technician1710787072
- Joshua Oluwayomi, NPFamily Nurse Practitioner1538712187
- Ashley OlveraBehavior Technician1245044247
- Cristina Olvera-JaramilloStudent in an Organized Health Care Education/Training Program1336952894
- Alison Omalley, COTAOccupational Therapy Assistant1992096671
- Anna Oman BakerPharmacist1508444266
- Azreen OmarPharmacist1376287086
- Ramsey OmariStudent in an Organized Health Care Education/Training Program1497507974
- Valerie Omicioli, MDObstetrics & Gynecology Physician1144291253
- Folasade OmisadeBehavior Technician1407653801
- Gabrielle OmoregieStudent in an Organized Health Care Education/Training Program1902619802
- Josephine Omoruyi, PMHNPPsychiatric/Mental Health Nurse Practitioner1902584261
- Nadrat OmoteshoAssistant Behavior Analyst1538090006
- Omotayo OmotosoBehavior Technician1881587459
- Melodie Ondecker, LCSWClinical Social Worker1659852952
- Paul Allen OndoPhysical Therapist1124531587
- Iris OndouaBehavior Technician1366269847
- Kyle Oney, DODiagnostic Radiology Physician1184203382
- Binnan Ong, D.O.Physical Medicine & Rehabilitation Physician1578806550
- Chiew-Jen Ong, MDDiagnostic Radiology Physician1164058152
- Erich OngStudent in an Organized Health Care Education/Training Program1790597110
- Matthew OngStudent in an Organized Health Care Education/Training Program1891615357
- Sakkapol Ongwijitwat, MDAdult Reconstructive Orthopaedic Surgery Physician1356547095
- Oluwaseun Onifade, NPFamily Nurse Practitioner1265241210
- Toshihiro Onishi, MDPediatric Hematology & Oncology Physician1700186897
- Chinedu OnochieLicensed Practical Nurse1376222042
- Nwamaka OnochieMental Health Counselor1366965014
- Stephen OnochieMental Health Counselor1790251957
- Nneka OnowuPhysical Therapist1689057192
- Mitchell Onslow, M.D.Maternal & Fetal Medicine Physician1568876068
- Stephanie OntiverosSpeech-Language Pathologist1063141653
- Patience Onuoha, DOInternal Medicine Physician1649335092
- Jonathan Onuorah, RPHPharmacotherapy Pharmacist1558608604
- Lauren Ooka, PHARMDOncology Pharmacist1629439435
- Nicole Ooley, NPGerontology Nurse Practitioner1215695747
- Chinyere Oparaji, MDStudent in an Organized Health Care Education/Training Program1487443909
- Julie Opel, PHYSICAL THERAPY ASPhysical Therapist1982818258
- Agnes Opoku, NPNurse Practitioner1235621160
The largest Indiana cities
- Fort Wayne9,203
- Evansville4,352
- Carmel3,727
- Bloomington3,287
- South Bend3,178
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.