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CONNOR L SHANNON D.O.
NPI 1285896852
Anesthesiology in Park Ridge, IL

Active since June 25, 2008PECOS EnrolledAccepts Medicare Assignment
99.5/100
CMS Quality Rating
1775 DEMPSTER ST DEPT OF, PARK RIDGE, IL 60068(847) 723-5524 Get Directions Write a Review

NPPES record last updated: January 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 6, 2026, Oct 10, 2023, Dec 23, 2021 (3 updates tracked since 2021).

About Connor L Shannon D.o. NPPES

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

CONNOR L SHANNON D.O. (NPI 1285896852) is an individual anesthesiology provider in Park Ridge, Illinois, licensed in Illinois (036.121712) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and maintains a secondary practice location in Chicago.

NPPES Registry Identity

NPI1285896852
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameCONNOR L SHANNONCredential: D.O.
Location Address1775 DEMPSTER ST DEPT OFPark Ridge, IL 60068-1143
Mailing Address29373 Network PlChicago, IL 60673-1293 · (847) 390-5900 · Fax (847) 390-4757
Phone(847) 723-5524
Sole ProprietorYes
Medical School CMSOtherGraduated 2006
Enumeration DateJune 25, 2008
Last NPPES UpdateJanuary 6, 20263 updates tracked since enumeration
NPPES CertifiedJanuary 6, 2026
✔ NPI 1285896852 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in IL · 036.121712✔ Licensed in IL · 125-051445
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1775 DEMPSTER ST DEPT OF, Park Ridge, IL 60068
Open in Google Maps ↗

Secondary Practice Location 1

Location 1251 E Huron St Ste 5-704Chicago, IL 60611-2908 · Phone (312) 695-0061 · Fax (312) 695-9013

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

Connor L Shannon D.o. 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 ID5799952057
PECOS Enrollment IDI20120127000300
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

2

Medicare enrollment records show Connor Shannon reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwestern Medical Faculty Foundation
21 mi
Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
NPI 1346235314 (855) 694-2866
The Medical College Of Wisconsin, Inc.
70 mi
Internal Medicine
8701 WATERTOWN PLANK RD
Milwaukee, WI 53226
  • Reassigned Medicare billing, Wisconsin enrollment
  • 3,983 clinicians in this Medicare group
NPI 1699720086 (414) 955-7101

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 6

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.

Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
21 services20 patients
Anesthesia for procedure on heart and large blood vessels 00560
Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.
18 services18 patients
Ultrasound of heart with probe in esophagus, with report 93312
This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.
14 services14 patients
Ultrasound of heart blood flow, valves and chambers 93320
An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.
14 services14 patients
Ultrasound of heart with color-depicted blood flow, rate and valve function 93325
An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.
14 services14 patients
Insertion of tube in pulmonary artery for monitoring 93503
This procedure involves placing a tube into your pulmonary artery, which is a blood vessel in your lungs. The tube helps monitor heart function and blood flow, providing vital information for your treatment. It's typically done under local anesthesia to minimize discomfort.
14 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Advocate Lutheran General Hospital

Acute Care Hospitals · Park Ridge, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140223
Location1775 Dempster StPark Ridge, IL 60068 · Cook County
Emergency services Birthing friendly

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality86.15
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KATHRYN WOLFORD MD
Emergency Medicine
1775 DEMPSTER ST DEPT OF
PARK RIDGE, IL 60068
Cook County (847) 723-5155
JULIO CABRERA MD
Pathology (Anatomic Pathology)
1775 DEMPSTER ST DEPT OF
PARK RIDGE, IL 60068
Cook County (847) 723-7548
DR. JEVGENIJS LUSCIKS DO
Anesthesiology
1775 DEMPSTER ST DEPT OF
PARK RIDGE, IL 60068
Cook County (847) 723-2210
AISHA SOZZER M.D.
Anesthesiology (Pediatric Anesthesiology)
1775 DEMPSTER ST DEPT OF
PARK RIDGE, IL 60068
Cook County (847) 723-5524
MARIA LUCIA CRISTINA GORDAN M.D.
Anesthesiology
1775 DEMPSTER ST DEPT OF
PARK RIDGE, IL 60068
Cook County (847) 723-2210

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 Connor Shannon's NPI number?

The NPI number for Connor Shannon is 1285896852. It was assigned to this individual provider in the NPPES registry on June 25, 2008.

Where is Connor Shannon located?

Connor Shannon practices at 1775 Dempster St Dept Of, Park Ridge, IL 60068. The listed phone number is (847) 723-5524.

What is Connor Shannon's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Connor Shannon enrolled in Medicare?

Yes. Connor Shannon 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 Connor Shannon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Connor Shannon reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and The Medical College Of Wisconsin, Inc. (Milwaukee, WI). 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 Connor Shannon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Connor Shannon affiliated with any hospitals?

According to CMS data, Connor Shannon is affiliated with Northwestern Medicine Mchenry, Advocate Lutheran General Hospital and Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Connor Shannon was last updated on January 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.