Charles Mayo, M.D.
NPI 1437290640 · Psychiatry Physician · Saint Croix Falls, WI
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Mayo, M.D. is a Psychiatry Physician provider in Saint Croix Falls, WI (NPI 1437290640).
Provider details
- NPI number
- 1437290640
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 37910 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 73 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clonazepam | 334 | 42 |
| Aripiprazole | 298 | 47 |
| Trazodone Hcl | 286 | 57 |
| Alprazolam | 283 | 44 |
| Bupropion Hclbrand: Bupropion Xl | 275 | 50 |
| Lorazepam | 252 | 41 |
| Duloxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-09
- Last updated
- 2021-01-15
- Certified
- 2021-01-15
Frequently asked questions
- What is Charles Mayo's NPI number?
- Charles Mayo's National Provider Identifier (NPI) is 1437290640, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Mayo's specialty?
- Charles Mayo is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Mayo located?
- Charles Mayo's practice location on file with NPPES is 235 E State St, Saint Croix Falls, WI 54024-4117.
- What is Charles Mayo's phone number?
- The practice phone number listed in the NPPES registry for Charles Mayo is (715) 483-3221.
- Does Charles Mayo accept Medicare?
- Charles Mayo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Mayo's NPI active?
- Yes — Charles Mayo's NPI (1437290640) is active in the NPPES registry as of the last update on 2021-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.