ADVANCE INPATIENT MEDICINE LLC
NPI 1265989875
Hospitalist in Oak Brook, IL

Active since September 01, 2016
903 COMMERCE DRIVE, SUITE 333, OAK BROOK, IL 60523(630) 571-6770 Get Directions Write a Review

NPPES record last updated: September 26, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 26, 2016, Sep 1, 2016 (2 updates tracked since 2016).

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

NPI1265989875
Entity TypeOrganization
Primary Taxonomy208M00000X
Legal Business NameADVANCE INPATIENT MEDICINE LLC
Location Address903 COMMERCE DRIVE, SUITE 333Oak Brook, IL 60523
Mailing Address903 Commerce Drive, Suite 333Oak Brook, IL 60523
Organization SubpartNo
Authorized OfficialDiane SarkaCredentialing Specialist · (630) 928-5234
Enumeration DateSeptember 1, 2016
Last NPPES UpdateSeptember 26, 20162 updates tracked since enumeration
✔ NPI 1265989875 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
903 COMMERCE DRIVE, Oak Brook, IL 60523

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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

62

Medicare 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

Internal Medicine41
Nurse Practitioner11
Hospitalist6
Family Practice3
Geriatric Medicine1

Nearest to this location (20)

See all 62
Nurse Practitioner
NPI 1336501824
903 COMMERCE DR STE 333
Oak Brook, IL 60523
(708) 246-3627
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1245805134
903 COMMERCE DR STE 333
Oak Brook, IL 60523
(708) 246-3627
✔ PECOS✔ Accepts MedicareSame address
Internal Medicine
NPI 1205295144
903 COMMERCE DR STE 333
Oak Brook, IL 60523
(708) 246-3627
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1407468853
120 N OAK ST
Hinsdale, IL 60521
(630) 856-9000
✔ PECOS✔ Accepts Medicare2.4 mi
Nurse Practitioner
NPI 1801699475
120 N OAK ST
Hinsdale, IL 60521
(630) 856-9000
✔ PECOS2.4 mi
Internal Medicine
NPI 1144968876
120 N OAK ST
Hinsdale, IL 60521
(708) 245-9000
✔ PECOS✔ Accepts Medicare2.4 mi
Hospitalist
NPI 1336881762
120 N OAK ST
Hinsdale, IL 60521
(630) 856-9000
✔ PECOS✔ Accepts Medicare2.4 mi
Internal Medicine
NPI 1194055863
120 N OAK ST
Hinsdale, IL 60521
(630) 856-9000
✔ PECOS✔ Accepts Medicare2.4 mi
Internal Medicine
NPI 1306341391
120 N OAK ST
Hinsdale, IL 60521
(630) 856-9000
✔ PECOS✔ Accepts Medicare2.4 mi
Nurse Practitioner
NPI 1598275174
120 N OAK ST
Hinsdale, IL 60521
(630) 856-9000
✔ PECOS✔ Accepts Medicare2.4 mi
Hospitalist
NPI 1710989587
5201 S. WILLOW SPRINGS ROAD SUITE 450
La Grange, IL 60525
(716) 346-7645
✔ PECOS4.6 mi
Geriatric Medicine
NPI 1144439456
2655 WARRENVILLE RD STE 500
Downers Grove, IL 60515
(866) 949-0108
✔ PECOS✔ Accepts Medicare6.2 mi
Nurse Practitioner
NPI 1144723339
430 WARRENVILLE RD STE 310
Lisle, IL 60532
(630) 717-2600
✔ PECOS✔ Accepts Medicare6.6 mi
Internal Medicine
NPI 1750834628
303 E ARMY TRAIL RD STE 111
Bloomingdale, IL 60108
(630) 931-2929
✔ PECOS✔ Accepts Medicare8.5 mi
Internal Medicine
NPI 1497140727
303 E ARMY TRAIL RD STE 131
Bloomingdale, IL 60108
(630) 931-2929
✔ PECOS✔ Accepts Medicare8.5 mi
Nurse Practitioner
NPI 1497443915
396 REMINGTON BLVD STE 140
Bolingbrook, IL 60440
(630) 495-9356
✔ PECOS✔ Accepts Medicare14 mi
Internal Medicine
NPI 1336436203
500 REMINGTON BLVD
Bolingbrook, IL 60440
(630) 312-5000
✔ PECOS14 mi
Internal Medicine
NPI 1760622740
500 REMINGTON BLVD
Bolingbrook, IL 60440
(630) 312-5000
✔ PECOS✔ Accepts Medicare14 mi
Hospitalist
NPI 1851704035
5145 N CALIFORNIA AVE ATTN: GME OFFICE
Chicago, IL 60625
(773) 989-3808
✔ PECOS✔ Accepts Medicare15 mi
Family Practice
NPI 1093007221
12935 GREGORY ST
Blue Island, IL 60406
(708) 597-2000
✔ PECOS✔ Accepts Medicare19 mi
See all 62 clinicians

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 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.