Doctors and health care providers in Peoria, IL
4,621 individual NPPES records list a practice address in Peoria, 4th of 541 Illinois cities. The largest group is students in training: 362, 8% of the city's records, against 3% across Illinois. Page 62 of 93.
The 8 largest groups in Peoria
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Peoria in Illinois
- Rank in Illinois4th of 541 cities by records
- Share of the state1.9% of Illinois's records
- Specialties present25 or more taxonomy codes
- Top three groups17.7% of all records
- Students in training rank2nd of the 10 Illinois cities with the most
Compared with Illinois as a whole, Peoria has 2.9× the state's share of student in an organized health care education/training program records and 0.49× its share of mental health counselor records.
Providers in Peoria, alphabetically
- Leia Ogburn, L.C.S.W.Clinical Social Worker1558370700
- Oladoyin Ogunbayo JolaoyeStudent in an Organized Health Care Education/Training Program1205577582
- Marcus Ohnemus, A.T.C.Athletic Trainer1215990189
- Oluchukwu Okonkwo, MDStudent in an Organized Health Care Education/Training Program1487269478
- Linda Okra-BoatengEmergency Medicine Physician1790063139
- Aderonke Olaoye, MDStudent in an Organized Health Care Education/Training Program1164211330
- Mutiat OlayiwolaDentist1114811544
- Nathaniel Oldenburg, LCPCProfessional Counselor1790431880
- Kayla Olesky, D.O.Emergency Medicine Physician1548794753
- Christy OliphantPediatrics Physician1184836561
- Bradley Oliver, M.D.Pediatrics Physician1598170730
- Roxie Oliver-Payne, MDFamily Medicine Physician1376864959
- Nancy Olivero, APNAcute Care Nurse Practitioner1376978601
- Haley OlsenFamily Medicine Physician1861180382
- Michael Olsen, M.D.Emergency Medicine Physician1144423526
- Ashley Olson, M.S., CCC-SLPSpeech-Language Pathologist1306240213
- Bret Olson, MDStudent in an Organized Health Care Education/Training Program1093509002
- Jessica OlsonPharmacist1417557414
- Richard Olson, D.C.Chiropractor1952436180
- Wendy Olson Padilla, M.D.Urology Physician1871752501
- Tamara Olt, M.D.Gynecology Physician1104870708
- Erin OmalleyCertified Registered Nurse Anesthetist1427915487
- Samson OmowumiPsychiatric/Mental Health Nurse Practitioner1457181877
- Angie OnionCritical Care Neonatal Nurse Practitioner1447586052
- Karla OntiverosBehavior Technician1598611725
- Sherin OommenPharmacist1306464839
- Chibuzor Opara, MDNeonatal-Perinatal Medicine Physician1346680766
- Jonathan Opperman, PTPhysical Therapist1154831725
- Stephen Orlevitch, M.D.Sports Medicine (Orthopaedic Surgery) Physician1841290913
- Andrew Ortega, M.D.Emergency Medicine Physician1467808402
- Alyssa Orton, M.S., CCC-SLPSpeech-Language Pathologist1184064743
- Stacy Orwig, MDFamily Medicine Physician1982826384
- Brandi Osborn, SPEECH THERAPISTSpeech-Language Pathologist1316066582
- Rodney Osborn, MDAnesthesiology Physician1114916335
- Adam Osborne, CRNACertified Registered Nurse Anesthetist1093068991
- Paul Osborne, SLPSpeech-Language Pathologist1447531405
- Kaitlyn OsmulskiOccupational Therapist1073318796
- Daniel Osterloo, LCPCMental Health Counselor1104253319
- Mallory Osterloo, LCPCCounselor1912885005
- Chukwunenye Osuji, M.D.Orthopaedic Trauma Physician1609041953
- Barbara Ott, O.D.Optometrist1851342588
- Larry Otte, D.M.D.Oral and Maxillofacial Surgery (Dentist)1194859355
- Louise Otte, S.T.Speech-Language Pathologist1215941745
- Erin Overcash, W.H.N.P.Women's Health Nurse Practitioner1659662070
- Larry Overcash, M.D.Obstetrics & Gynecology Physician1639136484
- Patti Overcash, FNPFamily Nurse Practitioner1780699124
- Erica Owchar, M.D.Student in an Organized Health Care Education/Training Program1942648548
- Aaron Owens, NPGerontology Nurse Practitioner1265070494
- Gina Owens-Spahn, LCPCProfessional Counselor1124358221
- Anne Padwojski, APNNurse Practitioner1225224835
The largest Illinois cities
- Chicago63,379
- Springfield4,997
- Naperville4,634
- Evanston4,013
- Rockford3,893
How to read this directory
Peoria, Illinois appears in the CMS National Plan and Provider Enumeration System with 4,621 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 Peoria - 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 Peoria 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 Peoria is weighted toward Student in an Organized Health Care Education/Training Program (362 clinicians, followed by Physical Therapist with 241 and Family Nurse Practitioner with 215). 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 Illinois's population, Peoria reports roughly 36.8 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 Illinois's most common specialties, Social Worker is the most prominent one with no provider currently listing a Peoria practice address, a coverage gap Peoria patients typically fill by traveling to a larger nearby hub.
For Peoria 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 Peoria, IL?
There are 4,621 registered healthcare providers in Peoria, IL, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Peoria?
The most common specialties in Peoria are Student in an Organized Health Care Education/Training Program, Physical Therapist, Family Nurse Practitioner, Nurse Practitioner, Internal Medicine Physician. Student in an Organized Health Care Education/Training Program has the most providers with 362.
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.