Doctors and health care providers in Cincinnati, OH
31,362 individual NPPES records list a practice address in Cincinnati, 2nd of 711 Ohio cities. The largest group is case manager/care coordinator: 3,811, 12% of the city's records, against 11% across Ohio. Page 412 of 628.
The 8 largest groups in Cincinnati
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Cincinnati in Ohio
- Rank in Ohio2nd of 711 cities by records
- Share of the state9.6% of Ohio's records
- Specialties present25 or more taxonomy codes
- Top three groups21.5% of all records
- Case Manager/Care Coordinator rank2nd of the 10 Ohio cities with the most
Compared with Ohio as a whole, Cincinnati has 1.9× the state's share of nurse practitioner records and 0.58× its share of addiction (substance use disorder) counselor records.
Providers in Cincinnati, alphabetically
- Michael O'BrienPersonal Care Attendant1902670565
- Rachel O'Brien, CNPNurse Practitioner1841711876
- Roberta O'Brien, FNPFamily Nurse Practitioner1316330889
- Robyn O'Brien, MDHospitalist Physician1629050455
- Daryl O'Brien Parr, PH.D., LCSWClinical Social Worker1063836823
- Mary O'Bryan, RPHPharmacist1447642426
- David O'Connell, MDInternal Medicine Physician1568455335
- James O'Connell, LPCMental Health Counselor1538285978
- Lili O'ConnellSocial Worker1538047121
- Marijo O'Connell, M.A./CCC-SLPSpeech-Language Pathologist1114436318
- John O'ConnerOccupational Therapy Assistant1861265241
- Patrick O'ConnerMental Health Counselor1831052133
- William O'Conner, DDSGeneral Practice Dentistry1174624514
- Amy O'Connor, M.A.Audiologist1225466923
- Blake O'Connor, MDSurgery Physician1467958587
- Christine O'Connor, RDRegistered Dietitian1639136567
- Emily O'ConnorSpeech-Language Pathologist1942153614
- John O'Connor, M.D.Obstetrics & Gynecology Physician1649245770
- Michael O'Connor, MDStudent in an Organized Health Care Education/Training Program1679275267
- Patrick O'Connor, D.D.S.General Practice Dentistry1063421139
- Shannon O'Connor, MD, PHDPediatric Rheumatology Physician1013573351
- Shari O'Connor, APRNFamily Nurse Practitioner1427508803
- Patrick O'Daniel, M.D.Hospitalist Physician1144255282
- Christine O'Dea, MDFamily Medicine Physician1467605469
- James O'Dea, M.D.Family Medicine Physician1013165174
- Peggy Maloy O'DellHomemaker1760128458
- Rebecca O'Der, C.F.N.P.Family Nurse Practitioner1790873495
- Brooke O'Donnell, CDCAAddiction (Substance Use Disorder) Counselor1548057961
- Erin O'Donnell, M.D.Pediatrics Physician1346660917
- Michelle O'Donnell, PA-CPhysician Assistant1477830974
- Robert O'Donnell, MDCardiovascular Disease Physician1629090006
- Kristen O'DriscollSpeech-Language Pathologist1033674239
- Cara O'GradyOccupational Therapist1740757988
- Janet O'Hair, LISWSocial Worker1003967498
- Matthew O'HaraCase Manager/Care Coordinator1326554171
- Nicole O'HaraPhysical Therapist1326325036
- Sara O'Hara, MDPediatric Radiology Physician1447344874
- Elizabeth O'HarraCase Manager/Care Coordinator1154114668
- Greg O'HearnPeer Specialist1871430751
- Holly O'Keefe, P.T.Physical Therapist1376799411
- Kathryn O'Keefe, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1407052723
- Lauren O'Keefe, MS, LPCCProfessional Counselor1427436336
- Brittni O'LearyMaternal Newborn Registered Nurse1407314776
- Mary O'Leary, RNRegistered Nurse1194024489
- Matthew O'Leary, MDStudent in an Organized Health Care Education/Training Program1881487825
- Meghann O'LearyCase Manager/Care Coordinator1467741637
- Michael O'Leary, CPHTPharmacy Technician1023817798
- Timothy O'Leary, O.D.Optometrist1356428791
- Jessica O'Maley, BACase Manager/Care Coordinator1700395134
- Megan O'Maley, CNPNurse Practitioner1194240622
How to read this directory
Cincinnati, Ohio appears in the CMS National Plan and Provider Enumeration System with 31,362 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 Cincinnati - 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 Cincinnati 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 Cincinnati is weighted toward Case Manager/Care Coordinator (3,811 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,758 and Social Worker with 1,184). 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, Cincinnati reports roughly 266.1 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 Cincinnati 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 Cincinnati, OH?
There are 31,362 registered healthcare providers in Cincinnati, OH, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Cincinnati?
The most common specialties in Cincinnati are Case Manager/Care Coordinator, Student in an Organized Health Care Education/Training Program, Social Worker, Clinical Social Worker, Licensed Practical Nurse. Case Manager/Care Coordinator has the most providers with 3,811.
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.