Charles W. Mayo, M.D.
Psychiatry Physician · Saint Croix Falls, WI
Charles W. Mayo, M.D. is a psychiatry physician with a practice address in Saint Croix Falls, Wisconsin, and NPI 1437290640, issued on Feb 9, 2007. Check the license (Wisconsin 37910, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Charles W. Mayo
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 37910 WI
Self-reported in NPPES; status is on the state search - Practice location
- 235 E State St, Saint Croix Falls, WI 54024
- Phone
- (715) 483-3221
- Enumerated
- Feb 9, 2007
- Record last updated
- Jan 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (715) 483-0507
- Medicaid ID
- 32285900 WI
- Medicare enrollment
- Enrolled (PECOS I20120320000393); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1988
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 929 in Wisconsin → Look up another NPI →
Also registered at 235 E State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jodi Arrowood, PHARMDPharmacist1487056420
- Heather Ash, NPNurse Practitioner1154783868
- Semi Ayub, M.DRheumatology Physician1487825071
- Penny Bearheart, LPC, SACMental Health Counselor1881171601
- Jennifer Beauvais, NPNurse Practitioner1992169270
- Erik Belgum, SLPSpeech-Language Pathologist1497972483
Verify Charles W. Mayo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 37910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.2 times the Medicare Part D claims of the average psychiatry physician in 2024
6,169 Medicare Part D claims for 257 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Clonazepam334 claims
- Aripiprazole298 claims
- Trazodone Hcl286 claims
- Alprazolam283 claims
- Bupropion Xl275 claims
- Lorazepam252 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- St. Croix Regional Medical CenterSaint Croix Falls, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles W. Mayo among 929 psychiatry physician records in Wisconsin
Charles W. Mayo, M.D. is one of 929 psychiatry physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 50% of them.
- NPI issued2007 · 50% of these records are older, 41% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 47% of these records are
- Graduated1988 · median 2005 among the 439 with a school on file
- Record last updated2021 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Wisconsin
There are 929 psychiatry physician records in Wisconsin.
All 929 in Wisconsin → Every provider in Saint Croix Falls → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Kristin Gullickson, BSN RNOsceola, WI 540201568396059
- Kale Siebert, MDNew Richmond, WI 540171881250926
- Rebecca Harrison, MDHudson, WI 540161831285253
- Eyuel Terefe, MDBaldwin, WI 540021003341652
- Erica Burger, D.O.Amery, WI 540011538521117
- Ronda Davis, MDAmery, WI 540011568564227
- Noel Jarvis, MDAmery, WI 540011528115722
- Abdul-Malik Kassim, MDAmery, WI 540011578141669
Common questions
What is Charles W. Mayo, M.D.'s NPI number?
Charles W. Mayo, M.D.'s National Provider Identifier (NPI) is 1437290640, issued on Feb 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Charles W. Mayo, M.D. located?
The NPPES record lists a practice address at 235 E State St, Saint Croix Falls, WI, 54024. Phone: (715) 483-3221. Providers update this record themselves, so call before visiting.
How can I verify Charles W. Mayo, M.D.'s license?
NPPES lists Wisconsin license number 37910, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles W. Mayo, M.D. prescribe under Medicare Part D?
In 2024, Charles W. Mayo, M.D. had 6,169 Medicare Part D claims for 257 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.