DR. GILLIAN ALEX M.D.
NPI 1851730907
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Chicago, IL

Q: What is Gillian Alex's NPI number?

The NPI number for Gillian Alex is 1851730907. It was assigned to this individual provider in the NPPES registry on June 21, 2013.

Q: What is Gillian Alex's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Q: When was this NPI record last updated?

The NPPES record for Gillian Alex was last updated on May 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since June 21, 2013PECOS EnrolledAccepts Medicare Assignment

1653 W CONGRESS PKWY, CHICAGO, IL 60612(617) 775-4573 Get Directions Write a Review

NPPES record last updated: May 3, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 3, 2024, Feb 23, 2022, Apr 28, 2021 (3 updates tracked since 2021).

On this page

About Dr. Gillian Alex M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GILLIAN ALEX M.D. (NPI 1851730907) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Chicago, Illinois, licensed in Illinois (036147043) and active in the NPI registry since June 2013. She is enrolled in Medicare PECOS, is affiliated with Copley Memorial Hospital, and maintains a secondary practice location in Arlington Heights.

NPPES Registry Identity

NPI1851730907

Entity TypeIndividualFemale

Primary Taxonomy208G00000X

Provider Legal NameDR. GILLIAN ALEXCredential: M.D.

Location Address1653 W CONGRESS PKWYChicago, IL 60612-3833

Mailing Address1653 W Congress PkwyChicago, IL 60612-3833

Phone(617) 775-4573

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2013

Enumeration DateJune 21, 2013

Last NPPES UpdateMay 3, 20243 updates tracked since enumeration

NPPES CertifiedMay 3, 2024

✔ NPI 1851730907 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians

Taxonomy Code208G00000X

License✔ Licensed in IL · 036147043

Definition

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

1653 W CONGRESS PKWY, Chicago, IL 60612

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Secondary Practice Location 1

Location 1880 W Central Rd Ste 5000Arlington Heights, IL 60005-2355 · Phone (847) 618-3800 · Fax (847) 618-3809

Other Identifiers 1

Other036147043IL · State License

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. Gillian Alex 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.

PECOS PAC ID5496052680

PECOS Enrollment IDI20200909002570, I20220331000676

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Gillian Alex reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rush University Medical Center

Same address

Diagnostic Radiology

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois and Indiana enrollments
Medicare enrollment name: Rush University Medical Group
Also billed through NPI 1093819542 (Indiana)
2,169 clinicians in this Medicare group

NPI 1184269425 (312) 563-4270

Rush Medical Group

Same address

Internal Medicine

1620 W HARRISON ST
Chicago, IL 60612

Reassigned Medicare billing, Illinois and Indiana enrollments
548 clinicians in this Medicare group

NPI 1467312850 (312) 942-5000

Northwest Community Health Services Inc

21 mi

Obstetrics

880 W CENTRAL RD STE 6200
Arlington Heights, IL 60005

Reassigned Medicare billing, Illinois enrollment
346 clinicians in this Medicare group

NPI 1467057513 (847) 618-0730

Copley Memorial Hospital, Inc.

33 mi

Endocrinology, Diabetes & Metabolism

2040 OGDEN AVE STE 217
Aurora, IL 60504

Reassigned Medicare billing, Illinois enrollment
79 clinicians in this Medicare group

NPI 1619466034 (630) 499-4721

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 7

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.

Removal of lymph nodes of chest cavity using an endoscope 32674

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to access and remove lymph nodes in the chest cavity. It's a minimally invasive method, which can help in diagnosing or treating certain conditions.

32 services32 patients

Initial removal of wedge of lung tissue using an endoscope 32666

This procedure involves the use of an endoscope, a thin tube with a light and camera, to view and remove a small wedge of lung tissue. It's performed to diagnose or treat lung conditions. The process is minimally invasive, reducing recovery time.

22 services22 patients

Fluoroscopic guidance for insertion or removal of central vein access device 77001

Fluoroscopic guidance for central vein access device insertion or removal is a procedure where a special X-ray, called a fluoroscope, is used to help accurately place or remove a device in a central vein. This device aids in delivering medications or collecting blood samples.

16 services16 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

15 services14 patients

Exam of lung with removal of lung lobe using an endoscope 32663

This is a procedure where an endoscope, a thin tube with a light and camera, is used to examine the lung and remove a lobe if necessary. It's less invasive than traditional surgery, resulting in shorter recovery time.

14 services14 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

13 services12 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Copley Memorial Hospital

Acute Care Hospitals · Aurora, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140029

Location2000 Ogden AvenueAurora, IL 60504 · Kane County

Emergency services Birthing friendly

Rush University Medical Center

Acute Care Hospitals · Chicago, IL

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140119

Location1653 West Congress ParkwayChicago, IL 60612 · Cook County

Emergency services Birthing friendly

Silver Cross Hospital And Medical Centers

Acute Care Hospitals · New Lenox, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140213

Location1900 Silver Cross BlvdNew Lenox, IL 60451 · Will County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$183.39 typical visit price

range $60.08 – $183.39

Typical copayment $45.84 (range $15.02 – $45.84)

Most-billed visit code 99205

Established Patient

$74.80 typical visit price

range $18.97 – $148.12

Typical copayment $18.70 (range $4.74 – $37.03)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

2 suppliers15 claims15 services$15.47 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers15 claims15 services$66.34 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

KAITLIN ROBLING MD

Radiology (Diagnostic Radiology)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-5000

LAUREN ELIZABETH ARSENAULT MD

Radiology (Diagnostic Radiology)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-5781

ALEX MICHAEL JAMES

Student in an Organized Health Care Education/Training Program

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (888) 352-7874

WERNER MEIER M.D.

Pediatrics (Neonatal-Perinatal Medicine)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-7154

UNIVERSITY PATHOLOGISTS P C

Pathology (Anatomic Pathology & Clinical Pathology)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 942-5700

RUSH UNIVERSITY MEDICAL CENTER

Clinical Medical Laboratory

1653 W CONGRESS PKWY, ROOM 1188-JELKE
CHICAGO, IL 60612

Cook County (312) 942-2054

DR. PATOULA PANAGOS-BILLIRIS MD

Pediatrics (Neonatal-Perinatal Medicine)

1653 W CONGRESS PKWY, 3 PAVILLION
CHICAGO, IL 60612

Cook County (312) 942-3306

KAREN HARVEY

Nurse Practitioner (Psychiatric/Mental Health)

1653 W CONGRESS PKWY
CHICAGO, IL 60612

Cook County (312) 947-0100

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 Gillian Alex's NPI number?

The NPI number for Gillian Alex is 1851730907. It was assigned to this individual provider in the NPPES registry on June 21, 2013.

Where is Gillian Alex located?

Gillian Alex practices at 1653 W Congress Pkwy, Chicago, IL 60612. The listed phone number is (617) 775-4573.

What is Gillian Alex's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Gillian Alex enrolled in Medicare?

Yes. Gillian Alex 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 Gillian Alex's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gillian Alex reassigns Medicare benefits to 4 organizations: Rush University Medical Center (Chicago, IL), Rush Medical Group (Chicago, IL), Northwest Community Health Services Inc (Arlington Heights, IL) and Copley Memorial Hospital, Inc. (Aurora, 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 Gillian Alex's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Gillian Alex affiliated with any hospitals?

According to CMS data, Gillian Alex is affiliated with Copley Memorial Hospital, Rush University Medical Center and Silver Cross Hospital And Medical Centers.

When was this NPI record last updated?

The NPPES record for Gillian Alex was last updated on May 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.