Healthcare Providers & Facilities in Ontario, OH
Public healthcare directory of 321 individual practitioners and 71 healthcare facilities located in Ontario, Ohio.
Medical Specialties in Ontario
Select a specialty to view practitioner listings, practice locations, and qualifications.
All Specialties in Ontario
73 specialties with at least one listed practitioner; none has a comparison directory yet. Number of practitioners in brackets.
Allopathic & Osteopathic Physicians
- Emergency Medicine (1)
- Family Medicine (8)
- Family Medicine - Sports Medicine (1)
- Internal Medicine (7)
- Internal Medicine - Cardiovascular Disease (1)
- Internal Medicine - Endocrinology, Diabetes & Metabolism (1)
- Internal Medicine - Interventional Cardiology (2)
- Internal Medicine - Rheumatology (1)
- Obstetrics & Gynecology (1)
- Ophthalmology (1)
- Otolaryngology (2)
- Pediatrics (3)
- Surgery (2)
- Urology (2)
Behavioral Health & Social Service Providers
Chiropractic Providers
- Chiropractor (3)
Dental Providers
Dietary & Nutritional Service Providers
Eye and Vision Services Providers
Nursing Service Providers
Nursing Service Related Providers
- Home Health Aide (1)
- Homemaker (9)
- Nurse's Aide (1)
- Technician - Personal Care Attendant (4)
Other Service Providers
Pharmacy Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Speech, Language and Hearing Service Providers
Featured Healthcare Providers in Ontario
Practitioner profiles in Ontario, OH with recent CMS Medicare or Open Payments data.
Dr. Ashley Bryant , MD
Internal Medicine
Dr. Swati Sood , DDS
Dentist
Dr. Paul Chang , MD
Internal Medicine
Dr. Gordon Long , MD
Family Medicine
Patricia Conn , CRNP
Nurse Practitioner - Family
Marc Mccuen , PT
Physical Therapist
Largest Cities in Ohio
Other Ohio cities with a full directory, by the number of active practitioners listed in NPPES.
How Ontario compares with the U.S.
321 active clinicians list a practice address in Ontario, OH in the NPI registry.
Ontario has fewer than 10,000 residents, so rates per 100,000 people change a lot with each clinician and are not compared here.
95% of clinicians in Ontario listed in the CMS Medicare file (56 of 59) accept Medicare assignment. That is similar to the Ohio share of 93%.
Only 59 of 321 active clinicians in Ontario appear in the CMS Medicare file, so this share describes that smaller group.
What is Medicare assignment?
A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.
Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.
10% of clinicians in Ontario listed in the CMS Medicare file (6 of 59) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the Ohio share of 18%.
About the telehealth indicator
The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.
These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.
Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com · Methodology
Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File.
Ontario CMS Healthcare & Financial Disclosures
CMS Part D Prescribers (2024), Open Payments (program year 2025), Medicare (PECOS) enrollment and Part B (2024) data for Ontario, OH
Healthcare operations in Ontario, OH encompass 321 active individual practitioners and 71 registered medical facilities across 73 clinical specialties.
According to CMS Medicare Part D analytics for 2024, prescription drug volume in Ontario accounts for $13.7 Million across 148,788 prescription claims. 101 local practitioners have a Medicare (PECOS) enrollment record. Open Payments data for program year 2025 list $0.0 Million in payments reported by companies to 44 local practitioners; a reported payment does not necessarily mean the financial relationship is improper.