JEAN HOULIHAN MD
NPI 1952398885
Internal Medicine in Warrenville, IL
About Jean Houlihan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JEAN HOULIHAN MD (NPI 1952398885) is an individual internal medicine provider in Warrenville, Illinois, licensed in Illinois (036085979) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Jean Houlihan Md 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
2Medicare enrollment records show Jean Houlihan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lisle, IL 60532
- Reassigned Medicare billing, Illinois enrollment
- 561 clinicians in this Medicare group
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 1,061 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 14
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60532 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LISLE, IL 60532
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 Jean Houlihan's NPI number?
The NPI number for Jean Houlihan is 1952398885. It was assigned to this individual provider in the NPPES registry on October 5, 2005.
Where is Jean Houlihan located?
Jean Houlihan practices at 430 Warrenville Rd, Warrenville, IL 60532. The listed phone number is (630) 432-6180.
What is Jean Houlihan's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Jean Houlihan enrolled in Medicare?
Yes. Jean Houlihan 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 Jean Houlihan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jean Houlihan reassigns Medicare benefits to 2 organizations: Edward Health Ventures (Lisle, IL) and Dupage Medical Group Ltd (Downers Grove, 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 Jean Houlihan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jean Houlihan was last updated on June 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.