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

Mr. Brien Rex Miller, DO

Individual provider Gastroenterology Physician · NPI 1992066799

Mr. Brien Rex Miller, DO is a Gastroenterology in St George, Utah. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 2012, 14 years ago. Practices with Utah Gastroenterology LLC, a 71-clinician group and accepts Medicare assignment. Licensed in Utah.

Years since qualifying
14
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
UT
In the registry since
2012
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

368 E Riverside Dr Ste A
St George, UT 84790-6897
Phone: (435) 673-1149
Fax: (435) 673-1182
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 10707936-1204 (UT)

Record details

NPI number1992066799
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 7, 2012
Last updated in NPPESDecember 5, 2019
Mailing address6360 S 3000 E Ste 220, Salt Lake City, UT 84121-6924

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 2012 (14 years in practice)
Group practice Utah Gastroenterology Llc — 71 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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