Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Graham Robert Johnson, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1770924656

Dr. Graham Robert Johnson, MD practises Diagnostic Radiology in Indianapolis, Indiana. Graduated from Southern Illinois University School of Medicine in 2013, 13 years ago. Practices with Indiana University Radiology Associates Inc, a 219-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
13
Trained at
Southern Illinois University School of Medicine
Licensed in
IN
In the registry since
2013
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Indianapolis, IN

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 01080427A (IN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 11017982A (IN)

Record details

NPI number1770924656
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2013
Last updated in NPPESAugust 19, 2020
Certification dateAugust 19, 2020

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolSOUTHERN ILLINOIS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Indiana University Radiology Associates Inc — 219 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations14 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 patients1,693
Services billed 2,515 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Indiana University Radiology Associates Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 219 clinicians in the practice; 12 are shown here.

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