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

Alexander Michael Mason, MD

Individual provider Neurological Surgery Physician · NPI 1275758039

Alexander Michael Mason, MD is a Neurosurgery in Saint Paul, Minnesota. Graduated from Ohio State University College of Medicine in 2000, 26 years ago. Practices with Intermountain Medical Group Denver LLC, a 567-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Colorado, Minnesota, Ohio and South Carolina.

Years since qualifying
26
Trained at
Ohio State University College of Medicine
Licensed in
CO, MN, OH, SC
In the registry since
2007
Specialties on file
4
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

640 Jackson St
Saint Paul, MN 55101-2502
Phone: (651) 495-6600
Fax: (651) 254-3123
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4743 Arapahoe Ve, Boulder, CO 80303 — (303) 938-5700

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence 96060 (SC)
Neurological Surgery Physician Taxonomy 207T00000X · Licence 59933 (MN)
Neurological Surgery Physician Taxonomy 207T00000X · Licence DR-46397 (CO)
Neurological Surgery Physician Taxonomy 207T00000X · Licence 57002649 (OH)

Record details

NPI number1275758039
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 16, 2007
Last updated in NPPESJanuary 19, 2026
Certification dateJanuary 19, 2026
Mailing address4743 Arapahoe Ve, Ste 202, Boulder, CO 80303

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Intermountain Medical Group Denver Llc — 567 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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