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

Dr. Steven Bradley Sonntag, MD

Individual provider General Practice Physician · NPI 1215005335

Dr. Steven Bradley Sonntag, MD is an Emergency Medicine in Lame Deer, Montana. Graduated from University of New Mexico School of Medicine in 1996, 30 years ago. Practices with U S Health Dept of Health and Human Services, a 98-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
30
Trained at
University of New Mexico School of Medicine
Licensed in
MT
In the registry since
2006
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

100 Cheyenne Ave
Lame Deer, MT 59043-0070
Phone: (406) 477-4484
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

General Practice Physician (primary) Taxonomy 208D00000X · Licence 10265 (MT)

Record details

NPI number1215005335
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 30, 2006
Last updated in NPPESJanuary 31, 2018

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesFAMILY PRACTICE
Medical schoolUNIVERSITY OF NEW MEXICO SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice U S Health Dept Of Health And Human Services — 98 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount