Quick answers
- Where does Gregory G. Lewis see patients?
- Medicare's clinician data lists 3 practice locations, including Saint Charles, MO, Springfield, MO and Kirksville, MO. Call before your visit to confirm the address.
- What is Gregory G. Lewis's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does Gregory G. Lewis accept Medicare assignment?
- Medicare's clinician data says Gregory G. Lewis may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is Gregory G. Lewis's NPI number?
- 1942771944. 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 Gregory G. Lewis is enrolled with Medicare (CMS data updated 2026-10-02).
- 1601 Old S River RdSaint Charles, MO 63303
- 2885 W Battlefield StSpringfield, MO 65807
- 900 E Laharpe StKirksville, MO 63501
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 | 2018 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1942771944 |
| 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 2026-10-02, retrieved 2026-10-29
- 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