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

Timothy O'Brien, MD

Individual provider Sports Medicine (Orthopaedic Surgery) Physician · NPI 1922008374

Timothy O'Brien, MD is an Orthopedic Surgery in Bozeman, Montana. Graduated from Warren Alpert Medical School of Brown University in 1997, 29 years ago. Practices with Alpine Orthopedics and Sports Medicine, a 9-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
29
Trained at
Warren Alpert Medical School of Brown University
Licensed in
MT
In the registry since
2005
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

536 Cottonwood Rd Ste 100
Bozeman, MT 59718
Phone: (406) 586-8029
Fax: (406) 586-8009
Show map & directions

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

Specialties & licences

Sports Medicine (Orthopaedic Surgery) Physician (primary) Taxonomy 207XX0005X · Licence 10407 (MT)

Record details

NPI number1922008374
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 28, 2005
Last updated in NPPESOctober 27, 2011
Mailing address536 Cottonwood Rd, Suite 100, Bozeman, MT 59718

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolWARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated 1997 (29 years in practice)
Group practice Alpine Orthopedics And Sports Medicine — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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