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

Roman Hystad Keller, DO

Individual provider Diagnostic Radiology Physician · NPI 1982743159

Roman Hystad Keller, DO practises Diagnostic Radiology in Sartell, Minnesota. Graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2004, 22 years ago. Practices with Regional Diagnostic Radiology, a 38-clinician group and accepts Medicare assignment. Licensed in Minnesota and Oklahoma.

Years since qualifying
22
Trained at
Kansas City University of Med & Biosciences, College of Osteo Med
Licensed in
MN, OK
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1990 Connecticut Ave S
Sartell, MN 56377-2554 Not confirmed with CMS for 15 years — call before visiting
Phone: (320) 257-5595
Fax: (320) 257-5596
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 52680 (MN)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 4420 (OK)

Record details

NPI number1982743159
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedFebruary 5, 2007
Last updated in NPPESAugust 11, 2011

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolKANSAS CITY UNIVERSITY OF MED & BIOSCIENCES, COLLEGE OF OSTEO MED
Graduated 2004 (22 years in practice)
Group practice Regional Diagnostic Radiology — 38 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 patients2,869
Services billed 7,251 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.

Colleagues at Regional Diagnostic Radiology

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 38 clinicians in the practice; 12 are shown here.

Other providers in Sartell