VANESSA HAGAN, MD, SC
NPI 1053413807
Internal Medicine in Oak Lawn, IL
About Vanessa Hagan, Md, Sc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VANESSA HAGAN, MD, SC (NPI 1053413807) is a healthcare organization registered as an internal medicine in Oak Lawn, Illinois and active in the NPI registry since September 2006. The organization lists Vanessa Hagan, President/ceo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Vanessa Hagan, Md, Sc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Vanessa Hagan, MD, Sc, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Vanessa Hagan, MD, Sc's NPI number?
The NPI number for Vanessa Hagan, MD, Sc is 1053413807. It was assigned to this organization in the NPPES registry on September 2, 2006.
Where is Vanessa Hagan, MD, Sc located?
Vanessa Hagan, MD, Sc is located at 4400 W 95th St 303, Oak Lawn, IL 60453. The listed phone number is (708) 423-1300.
What is Vanessa Hagan, MD, Sc's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Vanessa Hagan, MD, Sc enrolled in Medicare?
Yes. Vanessa Hagan, MD, Sc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Vanessa Hagan, MD, Sc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Vanessa Hagan, MD, Sc. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Vanessa Hagan, MD, Sc was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.