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

Individual provider Emergency Medicine Physician · NPI 1255597084

Dr. Timothy Brian Sullivan, MD is an Emergency Medicine in Bozeman, Montana. Graduated from Yale University School of Medicine in 2008, 18 years ago. Practices with Bozeman Health Deaconess Hospital, a 313-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
18
Trained at
Yale University School of Medicine
Licensed in
MT
In the registry since
2008
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

915 Highland Blvd
Bozeman, MT 59715-6902
Phone: (406) 414-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 49778 (MT)

Record details

NPI number1255597084
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 31, 2008
Last updated in NPPESApril 10, 2025
Certification dateApril 10, 2025
Mailing addressBozeman Health Deaconess Hospital, 915 Highland Blvd, Bozeman, MT 59715-6902

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2008 (18 years in practice)
Group practice Bozeman Health Deaconess Hospital — 313 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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