MARGARET CULLEN-REGAN O.D.
NPI 1619950151
Optometrist - Corneal and Contact Management in Tinley Park, IL
About Margaret Cullen-regan O.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARGARET CULLEN-REGAN O.D. (NPI 1619950151) is an individual corneal and contact management provider in Tinley Park, Illinois, licensed in Illinois (046008012) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (1987).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Margaret Cullen-regan O.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Margaret Cullen-regan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Tinley Park, IL 60487
- Reassigned Medicare billing, Illinois enrollment
- 2 clinicians in this Medicare group
Joliet, IL 60435
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Eligijus P Lelis MD & Associates, Sc
- 7 clinicians in this Medicare group
Edwardsville, IL 62025
- Reassigned Medicare billing, Illinois enrollment
- 127 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60487 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Margaret Cullen-regan's NPI number?
The NPI number for Margaret Cullen-regan is 1619950151. It was assigned to this individual provider in the NPPES registry on November 29, 2005.
Where is Margaret Cullen-regan located?
Margaret Cullen-regan practices at 9501 171st St Suite C, Tinley Park, IL 60487. The listed phone number is (708) 403-8300.
What is Margaret Cullen-regan's specialty?
The primary specialty registered for this NPI is Optometrist, specializing in Corneal and Contact Management, with taxonomy code 152WC0802X.
Is Margaret Cullen-regan enrolled in Medicare?
Yes. Margaret Cullen-regan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Margaret Cullen-regan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Cullen-regan reassigns Medicare benefits to 3 organizations: Insight Family Vision Care,inc. (Tinley Park, IL), Eligijus P. Lelis M.D. & Associates, S.C. (Joliet, IL) and Christina J. Levi O D P C (Edwardsville, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Margaret Cullen-regan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Cullen-regan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 15 other insurers list Margaret Cullen-regan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Margaret Cullen-regan was last updated on November 14, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.