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

Ragnvaldr Buck Bjornsson, MD

Individual provider Emergency Medicine Physician · NPI 1851379119

Ragnvaldr Buck Bjornsson, MD is a Family Practice in Rock Springs, Wyoming. Graduated from Stanford University School of Medicine in 1998, 28 years ago. Practices with University of Utah Adult Services, a 1,740-clinician group and accepts Medicare assignment. Licensed in Idaho and Wyoming.

Years since qualifying
28
Trained at
Stanford University School of Medicine
Licensed in
ID, WY
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.

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Practice location Address checks out

1200 College Dr
Rock Springs, WY 82901-5868
Phone: (307) 362-3711
Fax: (307) 352-8178
Show map & directions

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 6690A (WY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence M8716 (ID)

Record details

NPI number1851379119
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 6, 2006
Last updated in NPPESJanuary 23, 2026
Certification dateJanuary 23, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolSTANFORD UNIVERSITY SCHOOL OF MEDICINE
Graduated 1998 (28 years in practice)
Group practice University Of Utah Adult Services — 1740 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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