Quick answers
- Does Holli Slater accept Medicare assignment?
- Yes. Medicare's clinician data says Holli Slater 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 Holli Slater's NPI number?
- 1215591615. 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 Holli Slater is enrolled with Medicare (CMS data updated October 2, 2026).
- 1125 E Milham Ave, Suite BPortage, MI 49002 (269) 312‑1446
- 4341 S Westnedge Ave, Suite 1106Kalamazoo, MI 49008 (269) 312‑1446
Group practices
Medicare enrollment lists Holli Slater as a member of this group (CMS data updated October 2, 2026).
- Serene Solutions16 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Portage
Clinicians with the same Medicare primary specialty in Portage, MI — not a recommendation.
Other clinicians in Serene Solutions
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2019 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1215591615 |
| 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