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

John Ryu, MD

Individual provider Diagnostic Neuroimaging (Radiology) Physician · NPI 1154749174

John Ryu, MD practises Diagnostic Radiology in Columbus, Ohio. Graduated from Ohio State University College of Medicine in 2014, 12 years ago. Practices with Proscan Nch Imaging LLC, a 103-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
12
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2014
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

395 W 12th Ave
Columbus, OH 43210-1267
Phone: (614) 293-8315
Fax: (614) 293-6935
Show map & directions

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

Specialties & licences

Diagnostic Neuroimaging (Radiology) Physician (primary) Taxonomy 2085D0003X · Licence 35.127332 (OH)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 35.127332 (OH)

Record details

NPI number1154749174
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 7, 2014
Last updated in NPPESJanuary 24, 2026
Certification dateJanuary 24, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Proscan Nch Imaging Llc — 103 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 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 patients1,826
Services billed 5,216 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.

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Proscan Nch Imaging LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 103 clinicians in the practice; 12 are shown here.

Other providers in Columbus