Quick answers
- Does Brian M. Flynn accept Medicare assignment?
- Yes. Medicare's clinician data says Brian M. Flynn accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Brian M. Flynn's NPI number?
- 1790021897. 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 Brian M. Flynn is enrolled with Medicare (CMS data updated October 2, 2026).
- 16535 W Bluemound Rd, Suite 200Brookfield, WI 53005 (262) 789‑1191
- 2675 N Mayfair Rd, Suite 400Milwaukee, WI 53226 (414) 763‑6910
Group practices
Medicare enrollment lists Brian M. Flynn as a member of these groups (CMS data updated October 2, 2026).
- Cornerstone Counseling Services Inc353 clinicians in the group
- New Frontiers Psychiatric SC9 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Brookfield
Clinicians with the same Medicare primary specialty in Brookfield, WI — not a recommendation.
Other clinicians in Cornerstone Counseling Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Graduation year | 2012 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790021897 |
| 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