DR. RAMEZ I HADDADIN M.D.
NPI 1447486329
Ophthalmology in Chicago, IL
About Dr. Ramez I Haddadin M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RAMEZ I HADDADIN M.D. (NPI 1447486329) is an individual ophthalmology provider in Chicago, Illinois, licensed in Illinois (036.135723) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and is a graduate of Harvard Medical School (2009).
NPPES Registry Identity
Specialties & Licenses
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. Ramez I Haddadin 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 Reassignment
Medicare enrollment records show Ramez Haddadin reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 17
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Ramez Haddadin's NPI number?
The NPI number for Ramez Haddadin is 1447486329. It was assigned to this individual provider in the NPPES registry on June 4, 2009.
Where is Ramez Haddadin located?
Ramez Haddadin practices at 645 North Michigan Ave Suite 440, Chicago, IL 60611. The listed phone number is (312) 908-8152.
What is Ramez Haddadin's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Ramez Haddadin enrolled in Medicare?
Yes. Ramez Haddadin 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 organization bills Medicare for Ramez Haddadin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ramez Haddadin reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, IL). The 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 Ramez Haddadin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Ramez Haddadin affiliated with any hospitals?
According to CMS data, Ramez Haddadin is affiliated with Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Ramez Haddadin was last updated on April 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.