Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Jonathan Sehy, MD, PHD

Individual provider Diagnostic Radiology Physician · NPI 1013081942

Dr. Jonathan Sehy, MD, PHD practises Diagnostic Radiology in Maryville, Illinois. Graduated from Washington University School of Medicine in 2003, 23 years ago. Practices with West County Radiological Group Inc, a 105-clinician group and accepts Medicare assignment. Licensed in Illinois and Missouri.

Years since qualifying
23
Trained at
Washington University School of Medicine
Licensed in
IL, MO
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

6800 State Route 162 Anderson Hospital Dept OF Radiology
Maryville, IL 62062-8500 Not confirmed with CMS for 15 years — call before visiting
Phone: (314) 359-3166
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 036.122442 (IL)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 2004014818 (MO)

Record details

NPI number1013081942
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedNovember 20, 2006
Last updated in NPPESFebruary 7, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice West County Radiological Group Inc — 105 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,501
Services billed 5,315 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at West County Radiological Group Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 105 clinicians in the practice; 12 are shown here.

Other providers in Maryville