Quick answers
- Does Marissa M. Schier accept Medicare assignment?
- Medicare's clinician data says Marissa M. Schier may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Marissa M. Schier's NPI number?
- 1366983942. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Marissa M. Schier is enrolled with Medicare (CMS data updated October 2, 2026).
- 1601 Old S River RdSaint Charles, MO 63303
- 2885 W Battlefield StSpringfield, MO 65807
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Saint Charles
Clinicians with the same Medicare primary specialty in Saint Charles, MO — not a recommendation.
Clinician information
| Graduation year | 2011 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1366983942 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians