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

Individual provider Internal Medicine Physician · NPI 1275564189

Paul R Siddoway, MD is an Internal Medicine in Butte, Montana. Graduated from University of Washington School of Medicine in 1983, 43 years ago. Practices with Mercury Street Medical Group PLLC, a 6-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
43
Trained at
University of Washington 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

300 W Mercury St
Butte, MT 59701-1652
Phone: (406) 723-1300
Fax: (406) 723-1310
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 6039 (MT)

Record details

NPI number1275564189
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 6, 2006
Last updated in NPPESJanuary 11, 2017
Mailing address300 W Mercury St, Butte, MT 59701-1652

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1983 (43 years in practice)
Group practice Mercury Street Medical Group Pllc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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