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.

See every abbreviation used in this directory →

Practice location Address checks out

2900 12th Ave N #140 W
Billings, MT 59101-7506
Phone: (406) 237-5050
Fax: (406) 238-6599
Show map & directions

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

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