Quick answers
- Does Lillia R. Siegel accept Medicare assignment?
- Yes. Medicare's clinician data says Lillia R. Siegel 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 Lillia R. Siegel's NPI number?
- 1457052565. 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 Lillia R. Siegel is enrolled with Medicare (CMS data updated October 2, 2026).
- 875 S Dobson RdChandler, AZ 85224 (480) 899‑9800
Group practices
Medicare enrollment lists Lillia R. Siegel as a member of this group (CMS data updated October 2, 2026).
- Southeast Valley Gastroenterology Consultants, P.C.31 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Chandler
Clinicians with the same Medicare primary specialty in Chandler, AZ — not a recommendation.
Other clinicians in Southeast Valley Gastroenterology Consultants, P.C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1457052565 |
| 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