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DR. SIMONA JOFFE SIDDALL MD
NPI 1427269000
Anesthesiology in Evanston, IL

Active since May 24, 2007PECOS EnrolledAccepts Medicare Assignment
2650 RIDGE AVE. DEPT ANESTHESIOLOGY, EVANSTON, IL 60201(847) 982-6710 Get Directions Write a Review

NPPES record last updated: June 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Simona Joffe Siddall Md NPPES

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

DR. SIMONA JOFFE SIDDALL MD (NPI 1427269000) is an individual anesthesiology provider in Evanston, Illinois, licensed in Illinois (036132269) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and maintains a secondary practice location in Munster.

NPPES Registry Identity

NPI1427269000
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. SIMONA JOFFE SIDDALLCredential: MD
Location Address2650 RIDGE AVE. DEPT ANESTHESIOLOGYEvanston, IL 60201-1718
Mailing Address4901 Searle Pkwy Ste 150Skokie, IL 60077-5320
Phone(847) 982-6710
Sole ProprietorYes
Medical School CMSUniversity Of Wisconsin School Of MedicineGraduated 2006
Enumeration DateMay 24, 2007
Last NPPES UpdateJune 30, 2025
NPPES CertifiedJune 9, 2025
✔ NPI 1427269000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in IL · 036132269✔ Licensed in OH · 35.090861✔ Licensed in IL · 125055501
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.
2650 RIDGE AVE. DEPT ANESTHESIOLOGY, Evanston, IL 60201
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Secondary Practice Location 1

Location 1901 MacArthur BlvdMunster, IN 46321-2901 · Phone (219) 836-1600

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. Simona Joffe Siddall 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.

PECOS PAC ID5193993053
PECOS Enrollment IDI20250723000453
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

3

Medicare enrollment records show Simona Siddall reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Endeavor Health Medical Group
Same address
Anesthesiology
2650 RIDGE AVE, ANESTHESIOLOGY ROOM 3905
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1265695944 (847) 570-2760
St Catherine Hospital Inc
32 mi
General Acute Care Hospital
4321 FIR ST
East Chicago, IN 46312
  • Reassigned Medicare billing, Indiana enrollment
  • 74 clinicians in this Medicare group
NPI 1396847596 (219) 392-1700
Nwi Medical Associates , LLC
37 mi
Anesthesiology
901 MACARTHUR BLVD
Munster, IN 46321
  • Reassigned Medicare billing, Indiana enrollment
  • 83 clinicians in this Medicare group
NPI 1760182554 (219) 836-1600

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 9

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.
42 services41 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
37 services37 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
36 services36 patients
Anesthesia for x-ray on artery of brain, heart, or chest 01926
Anesthesia is given before an x-ray of the brain, heart, or chest artery to ensure comfort and stillness. It helps to eliminate discomfort or pain during the procedure. It's administered by a trained professional, ensuring a safe and smooth procedure.
22 services22 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.
17 services16 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
17 services17 patients

Hospital Affiliations CMS Care Compare 2

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

Northshore University Healthsystem - Evanston Hospital

Acute Care Hospitals · Evanston, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140010
Location2650 Ridge AveEvanston, IL 60201 · Cook County
Emergency services Birthing friendly

Swedish Hospital

Acute Care Hospitals · Chicago, IL
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number140114
Location5145 N California AveChicago, IL 60625 · Cook County
Emergency services Birthing friendly

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 Simona Siddall's NPI number?

The NPI number for Simona Siddall is 1427269000. It was assigned to this individual provider in the NPPES registry on May 24, 2007.

Where is Simona Siddall located?

Simona Siddall practices at 2650 Ridge Ave. Dept Anesthesiology, Evanston, IL 60201. The listed phone number is (847) 982-6710.

What is Simona Siddall's specialty?

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

Is Simona Siddall enrolled in Medicare?

Yes. Simona Siddall 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 Simona Siddall's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Simona Siddall reassigns Medicare benefits to 3 organizations: Endeavor Health Medical Group (Evanston, IL), St Catherine Hospital Inc (East Chicago, IN) and Nwi Medical Associates , LLC (Munster, IN). 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 Simona Siddall's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Simona Siddall affiliated with any hospitals?

According to CMS data, Simona Siddall is affiliated with Northshore University Healthsystem - Evanston Hospital and Swedish Hospital.

When was this NPI record last updated?

The NPPES record for Simona Siddall was last updated on June 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.