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

Dr. Charles W Mayo II, MD

Individual provider Psychiatry Physician · NPI 1437290640

Dr. Charles W Mayo II, MD is a Psychiatry in Saint Croix Falls, Wisconsin. Graduated from University of Minnesota Medical School in 1988, 38 years ago. Practices with St Croix Regional Medical Center, a 132-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
38
Trained at
University of Minnesota Medical School
Licensed in
WI
In the registry since
2007
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

235 E State St
Saint Croix Falls, WI 54024-4117
Phone: (715) 483-3221
Fax: (715) 483-0507
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 37910 (WI)

Record details

NPI number1437290640
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 9, 2007
Last updated in NPPESJanuary 15, 2021
Certification dateJanuary 15, 2021

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1988 (38 years in practice)
Group practice St. Croix Regional Medical Center — 132 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Saint Croix Falls