ADVANCE INPATIENT MEDICINE LLC
NPI 1265989875
Hospitalist in Oak Brook, IL
About Advance Inpatient Medicine Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADVANCE INPATIENT MEDICINE LLC (NPI 1265989875) is a healthcare organization registered as a hospitalist in Oak Brook, Illinois and active in the NPI registry since September 2016. The organization lists Diane Sarka, Credentialing Specialist, 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)
Advance Inpatient Medicine Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
62Medicare enrollment records show 62 clinicians reassign Medicare billing to Advance Inpatient Medicine LLC, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 15 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 5
Nearest to this location (20)
See all 62Source: 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 Advance Inpatient Medicine LLC's NPI number?
The NPI number for Advance Inpatient Medicine LLC is 1265989875. It was assigned to this organization in the NPPES registry on September 1, 2016.
Where is Advance Inpatient Medicine LLC located?
Advance Inpatient Medicine LLC is located at 903 Commerce Drive Suite 333, Oak Brook, IL 60523. The listed phone number is (630) 571-6770.
What is Advance Inpatient Medicine LLC's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Advance Inpatient Medicine LLC enrolled in Medicare?
Yes. Advance Inpatient Medicine LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Advance Inpatient Medicine LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 62 clinicians in 5 Medicare specialties reassign their Medicare billing to Advance Inpatient Medicine LLC. 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. The largest specialties are Internal Medicine (41), Nurse Practitioner (11) and Hospitalist (6). Of these, 3 practice at this address and 15 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Advance Inpatient Medicine LLC was last updated on September 26, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.