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

Richard A. A. Day, MD

Individual provider Neurological Surgery Physician · NPI 1447275854

Richard A. A. Day, MD is a Neurosurgery in Hamilton, Montana. Graduated from University of Michigan Medical School in 1988, 38 years ago. Practices with Marcus Daly Memorial Hospital Corporation, a 97-clinician group and accepts Medicare assignment. Licensed in Montana.

Years since qualifying
38
Trained at
University of Michigan Medical School
Licensed in
MT
In the registry since
2006
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

1190 Westwood Dr
Hamilton, MT 59840-2343
Phone: (406) 375-4714
Fax: (406) 375-4709
Show map & directions

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

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence 8014 (MT)

Record details

NPI number1447275854
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 13, 2006
Last updated in NPPESMay 13, 2021
Certification dateMay 13, 2021

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1988 (38 years in practice)
Group practice Marcus Daly Memorial Hospital Corporation — 97 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Hamilton