Healthcare professionals in Ontario, OH
- Healthcare professionals
- 259
- Physicians (MD, DO)
- 20
- Nurses and NPs
- 28
- Physician assistants
- 5
- Behavioral health clinicians
- 52
There are 20 physicians among 259 healthcare professionals in Ontario. Ontario Hospital has the most affiliated doctors, 174, and internal medicine is the most common physician specialty.
Find work emails and mobile numbers for 259 Ontario HCPs
Validated work emails and mobile numbers for Ontario physicians, nurses and every other HCP type, found through healthcare waterfall enrichment, with a free Dmand AI account.
There are 20 physicians (MD and DO) among 259 healthcare professionals in Ontario, OH
Counting every HCP with an active NPI and an Ontario practice address. Behavioral health clinicians are the largest group, with 52, and speech therapists and audiologists second, with 35.
Ontario HCPs by type
- Behavioral health clinicians52
- Speech therapists and audiologists35
- Therapists (PT and OT)31
- Nurses and nurse practitioners28
- Pharmacists26
- Physicians (MD, DO)20
- Home and community care workers19
- Dentists and dental staff10
- Athletic trainers8
- Optometrists and opticians7
- Other HCPs23
Sources: NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Internal medicine is the most common physician specialty in Ontario, with 5 physicians
Family medicine is second, with 4. Each physician is counted once, under the primary specialty on their NPI record.
- Internal medicine5
- Family medicine4
Sources: NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Ontario Hospital has the most affiliated doctors in Ontario, with 174
Physicians are counted at each hospital where they have a current affiliation, wherever they live.
| # | Hospital | Health system | Physicians | HCPs |
|---|---|---|---|---|
| 1 | Ontario HospitalOntario | Avita Health System | 174 | 316 |
Source: Dmand AI Affiliation Data
Hope 419 has the most doctors of any Ontario medical group, with 2
Counts are physicians and HCPs with an Ohio address.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
For health IT teams
Dmand AI has the EHR for 80 of 259 Ontario HCPs, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
25 Ontario healthcare professionals practice at a hospital, the most common site of care
Group practices and clinics are second, with 17. A clinician can practice at several kinds of site, so the shares overlap. Pharmacies are left out.
Ontario HCPs by site of care
- Hospitals25
- Group practices and clinics17
- Rural health clinics16
- Physician offices9
- Home health agencies7
- Hospices2
- Skilled nursing facilities1
See every site where Ontario HCPs practice
Each public profile names one place an HCP practices. A free account shows every current hospital, clinic and medical group, the employer and validated contacts for all 259.
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
47% of Ontario physicians finished medical school 30 or more years ago
8 of the 17 Ontario physicians with a graduation year on file. 0 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago0
- 10 to 19 years ago5
- 20 to 29 years ago4
- 30 to 39 years ago4
- 40 or more years ago4
Source: Dmand AI Professional Profile Data
Every Ontario HCP profile shows where they practice now, their Medicare activity and their NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the Ontario HCP directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
The directory counts HCPs with an active individual NPI, a name and an Ontario practice address.
FAQ
Frequently asked questions about doctors and healthcare professionals in Ontario
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many doctors are in Ontario?
20 physicians (MDs and DOs) have an active NPI and an Ontario practice address, among 259 Ontario healthcare professionals.
How many Ontario physicians finished medical school 30 or more years ago?
8 of the 17 with a graduation year on file, or 47%. 0 graduated in the last 10 years.
How can I contact healthcare professionals in Ontario?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for healthcare professionals in Ontario through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.
Dmand AI
Find the right contacts among Ontario healthcare professionals
Search 259 Ontario HCPs by specialty, hospital, group and city, with validated work emails and mobile numbers.
- 30 days free
- Self-serve
- No credit card