Quick answers
- Does Margaret Cullen Regan accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret Cullen Regan 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 Margaret Cullen Regan's NPI number?
- 1619950151. 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 Margaret Cullen Regan is enrolled with Medicare (CMS data updated October 2, 2026).
- 9501 171st St, Suite CTinley Park, IL 60487 (708) 403‑8300
- 963 N 129th Infantry Dr, Suite 110Joliet, IL 60435 (815) 725‑9377
Group practices
Medicare enrollment lists Margaret Cullen Regan as a member of these groups (CMS data updated October 2, 2026).
- Christina J. Levi O D P C.65 clinicians in the group
- Eligijus P Lelis MD and Associates, SC6 clinicians in the group
- Insight Family Vision Care, Inc.2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Tinley Park
Clinicians with the same Medicare primary specialty in Tinley Park, IL — not a recommendation.
Other clinicians in Christina J. Levi O D P C.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Illinois College Of Optometry At Chicago |
| Graduation year | 1987 (39 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1619950151 |
| 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