DR. OSVALDO I LOPEZ M.D.
NPI 1346296415
Ophthalmology in Chicago, IL
About Dr. Osvaldo I Lopez M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OSVALDO I LOPEZ M.D. (NPI 1346296415) is an individual ophthalmology provider in Chicago, Illinois, licensed in Illinois (036044342) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Thorek Memorial Hospital, and is a graduate of Northwestern University Feinberg Medical School (1970).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Osvaldo I Lopez M.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 Osvaldo Lopez reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60613
- Reassigned Medicare billing, Illinois enrollment
- 61 clinicians in this Medicare group
Chicago, IL 60616
- Reassigned Medicare billing, Illinois enrollment
- 143 clinicians in this Medicare group
Homewood, IL 60430
- Reassigned Medicare billing, Illinois enrollment
- 30 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.
Areas of Expertise CMS Part B claims 18
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Thorek Memorial Hospital
Acute Care Hospitals · Chicago, ILAdvocate Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60641 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 7
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 Osvaldo Lopez's NPI number?
The NPI number for Osvaldo Lopez is 1346296415. It was assigned to this individual provider in the NPPES registry on May 26, 2006.
Where is Osvaldo Lopez located?
Osvaldo Lopez practices at 3982 N Milwaukee Ave, Chicago, IL 60641. The listed phone number is (773) 282-2000.
What is Osvaldo Lopez's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Osvaldo Lopez enrolled in Medicare?
Yes. Osvaldo Lopez 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 Osvaldo Lopez's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Osvaldo Lopez reassigns Medicare benefits to 3 organizations: Thorek Memorial Hospital (Chicago, IL), Illinois College Of Optometry (Chicago, IL) and Ocular Partners PLLC (Homewood, 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 Osvaldo Lopez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Osvaldo Lopez accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Osvaldo Lopez 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.
Is Osvaldo Lopez affiliated with any hospitals?
According to CMS data, Osvaldo Lopez is affiliated with Thorek Memorial Hospital and Advocate Illinois Masonic Medical Center.
When was this NPI record last updated?
The NPPES record for Osvaldo Lopez was last updated on December 19, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.