Quick answers
- Does Abigail H. Sarkissian accept Medicare assignment?
- Medicare's clinician data says Abigail H. Sarkissian may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Abigail H. Sarkissian's NPI number?
- 1598596546. 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 Abigail H. Sarkissian is enrolled with Medicare (CMS data updated October 2, 2026).
- 12 N 64th StBelleville, IL 62223 (618) 397‑0900
Group practices
Medicare enrollment lists Abigail H. Sarkissian as a member of this group (CMS data updated October 2, 2026).
- Chestnut Health Systems Inc31 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Belleville
Clinicians with the same Medicare primary specialty in Belleville, IL — not a recommendation.
Other clinicians in Chestnut Health Systems Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2024 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1598596546 |
| 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