Healthcare professionals in O'Fallon, IL
- Healthcare professionals
- 1,126
- Physicians (MD, DO)
- 236
- Nurses and NPs
- 140
- Physician assistants
- 28
- Behavioral health clinicians
- 385
There are 236 physicians among 1,126 healthcare professionals in O'Fallon. HSHS St. Elizabeth's Hospital has the most affiliated doctors, 428, and family medicine is the most common physician specialty.
Find work emails and mobile numbers for 1,126 O'Fallon HCPs
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There are 236 physicians (MD and DO) among 1,126 healthcare professionals in O'Fallon, IL
Counting every HCP with an active NPI and an O'Fallon practice address. Behavioral health clinicians are the largest group, with 385, and nurses and nurse practitioners third, with 140.
O'Fallon HCPs by type
- Behavioral health clinicians385
- Physicians (MD, DO)236
- Nurses and nurse practitioners140
- Therapists (PT and OT)75
- Speech therapists and audiologists69
- Non-clinical and support staff45
- Chiropractors38
- Pharmacists35
- Dentists and dental staff32
- Physician assistants28
- Other HCPs43
Sources: NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Family medicine is the most common physician specialty in O'Fallon, with 52 physicians
Emergency medicine is second, with 20, and obstetrics and gynecology third, with 17. Each physician is counted once, under the primary specialty on their NPI record.
- Family medicine52
- Emergency medicine20
- Obstetrics and gynecology17
- Diagnostic radiology15
- Anesthesiology13
- Hospitalist13
- Pediatrics11
- Surgery10
- Internal medicine9
- General practice8
- Cardiovascular disease7
- Interventional cardiology4
- Allergy and immunology3
- Anatomic pathology and clinical pathology3
- Critical care medicine (internal medicine)3
- Gastroenterology3
Sources: NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
HSHS St. Elizabeth's Hospital has the most affiliated doctors in O'Fallon, with 428
Physicians are counted at each hospital where they have a current affiliation, wherever they live.
| # | Hospital | Health system | Physicians | HCPs |
|---|---|---|---|---|
| 1 | HSHS St. Elizabeth's HospitalO'Fallon | HSHS | 428 | 655 |
Source: Dmand AI Affiliation Data
Midwest Emergency Department Services (MEDS) has the most doctors of any O'Fallon medical group, with 55
MEDS (Midwest Emergency Department Services) is second with 49 physicians, and MEDS (Midwest Emergency Department Services) third with 4. Counts are physicians and HCPs with an Illinois address.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
For health IT teams
Dmand AI has the EHR for 454 of 1,126 O'Fallon 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.
276 O'Fallon healthcare professionals practice at a hospital, the most common site of care
Group practices and clinics are second, with 224. A clinician can practice at several kinds of site, so the shares overlap. Pharmacies are left out.
O'Fallon HCPs by site of care
- Hospitals276
- Group practices and clinics224
- Physician offices32
- FQHCs29
- Therapy and rehab centers24
- Home health agencies23
- Breast imaging centers20
- Ambulatory surgery centers18
- Urgent care centers15
- Behavioral health centers8
See every site where O'Fallon 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 1,126.
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
22% of O'Fallon physicians finished medical school 30 or more years ago
41 of the 185 O'Fallon physicians with a graduation year on file. 38 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago38
- 10 to 19 years ago62
- 20 to 29 years ago44
- 30 to 39 years ago26
- 40 or more years ago15
Source: Dmand AI Professional Profile Data
Every O'Fallon 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 O'Fallon 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 O'Fallon practice address.
FAQ
Frequently asked questions about doctors and healthcare professionals in O'Fallon
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 O'Fallon?
236 physicians (MDs and DOs) have an active NPI and an O'Fallon practice address, among 1,126 O'Fallon healthcare professionals.
What are the most common physician specialties in O'Fallon?
By primary specialty: family medicine (52), emergency medicine (20), obstetrics and gynecology (17), diagnostic radiology (15), anesthesiology (13).
Which medical groups have the most O'Fallon doctors?
Midwest Emergency Department Services (MEDS) (55 physicians), MEDS (Midwest Emergency Department Services) (49 physicians) and MEDS (Midwest Emergency Department Services) (4 physicians). Counts are physicians with an Illinois address.
How many O'Fallon physicians finished medical school 30 or more years ago?
41 of the 185 with a graduation year on file, or 22%. 38 graduated in the last 10 years.
How can I contact healthcare professionals in O'Fallon?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for healthcare professionals in O'Fallon 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.
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