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

Dr. John R Dorr, MD

Individual provider Orthopaedic Surgery Physician · NPI 1750388609

Dr. John R Dorr, MD is an Orthopaedic Surgery Physician in Billings, Montana. Licensed in Montana. Registered with an NPI since 2005.

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

2900 12th Ave N #140 W
Billings, MT 59101-7506
Phone: (406) 237-5050
Fax: (406) 238-6599
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 3898 (MT)

Record details

NPI number1750388609
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2005
Last updated in NPPESJanuary 4, 2011
Mailing address2900 12th Ave N, 140 W, Billings, MT 59101-7506

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