Quick answers
- Where does Brett A. Sisler see patients?
- Medicare's clinician data lists 1 practice location in Libertyville, IL. Call before your visit to confirm the address.
- What is Brett A. Sisler's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Brett A. Sisler accept Medicare assignment?
- Yes. Medicare's clinician data says Brett A. Sisler accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Brett A. Sisler offer telehealth?
- Medicare's clinician data says Brett A. Sisler offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Brett A. Sisler?
- (847) 816-9180, as listed in official Medicare / NPI Registry data.
- What is Brett A. Sisler's NPI number?
- 1609090844. 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 Brett A. Sisler is enrolled with Medicare (CMS data updated 2026-10-02).
- 800 S Milwaukee Ave, Suite 105Libertyville, IL 60048 (847) 816‑9180
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Libertyville
Clinicians with the same Medicare primary specialty in Libertyville, IL — not a recommendation.
Clinician information
| Graduation year | 1987 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609090844 |
| 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