SUMMER WILLIAMS
NPI 1114283876
Anesthesiology in Winfield, IL

Active since April 07, 2012PECOS EnrolledAccepts Medicare Assignment
25 N WINFIELD RD, WINFIELD, IL 60190(630) 933-6675(630) 933-2614 Get Directions Write a Review

NPPES record last updated: November 6, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 6, 2023, Jul 21, 2022, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Summer Williams NPPES

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

SUMMER WILLIAMS (NPI 1114283876) is an individual anesthesiology provider in Winfield, Illinois, licensed in Illinois (036166223) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Central Dupage Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1114283876
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameSUMMER WILLIAMS
Location Address25 N WINFIELD RDWinfield, IL 60190-1379
Mailing Address25 N Winfield RdWinfield, IL 60190-1379 · (630) 933-6675 · Fax (630) 933-2614
Fax(630) 933-2614
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateApril 7, 2012
Last NPPES UpdateNovember 6, 20234 updates tracked since enumeration
NPPES CertifiedNovember 6, 2023
✔ NPI 1114283876 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in IL · 036166223✔ Licensed in TN · 55471
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.
25 N WINFIELD RD, Winfield, IL 60190

Secondary Practice Locations 2

Location 114445 Olive View Dr, Dept. of Medicine (2B-182)Sylmar, CA 91342-1437 · Phone (818) 364-3205
Location 2110 29th Ave N Ste 202Nashville, TN 37203-1448 · Phone (615) 327-4304

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

Summer Williams 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 ID5890914220
PECOS Enrollment IDI20231115000638
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 Summer Williams reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multi-Specialty
DEPT 5777
Carol Stream, IL 60122
  • Reassigned Medicare billing, Illinois enrollment
  • 4,817 clinicians in this Medicare group
Anesthesiology
3633 PACIFIC AVE, SUITE 204
Tacoma, WA 98418
  • Reassigned Medicare billing, Washington enrollment
  • 90 clinicians in this Medicare group

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.
24 services24 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.
22 services22 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.
19 services19 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.
17 services17 patients
Anesthesia for electroshock therapy 00104
Anesthesia for electroshock therapy involves administering medications to put you into a deep sleep. This ensures you won't feel pain or remember the procedure. It's essential for your comfort and safety during the therapy.
14 services12 patients
Anesthesia for x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
14 services14 patients

Hospital Affiliations CMS Care Compare

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

Northwestern Medicine Central Dupage Hospital

Acute Care Hospitals · Winfield, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140242
Location25 North Winfield RoadWinfield, IL 60190 · Du Page County
Emergency services Birthing friendly

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.

Surgery (Vascular Surgery)
25 N WINFIELD RD, SUITE 201
WINFIELD, IL 60190
Nurse Practitioner
25 N WINFIELD RD
WINFIELD, IL 60190
Speech-Language Pathologist
25 N WINFIELD RD
WINFIELD, IL 60190
Internal Medicine (Pulmonary Disease)
25 N WINFIELD RD
WINFIELD, IL 60190
Obstetrics & Gynecology
25 N WINFIELD RD
WINFIELD, IL 60190
Anesthesiology
25 N WINFIELD RD
WINFIELD, IL 60190
Otolaryngology
25 N WINFIELD RD
WINFIELD, IL 60190
Nurse Practitioner (Family)
25 N WINFIELD RD
WINFIELD, IL 60190

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 Summer Williams's NPI number?

The NPI number for Summer Williams is 1114283876. It was assigned to this individual provider in the NPPES registry on April 7, 2012.

Where is Summer Williams located?

Summer Williams practices at 25 N Winfield Rd, Winfield, IL 60190. The listed phone number is (630) 933-6675.

What is Summer Williams's specialty?

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

Is Summer Williams enrolled in Medicare?

Yes. Summer Williams 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 Summer Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Summer Williams reassigns Medicare benefits to 2 organizations: Northwestern Medical Faculty Foundation (Carol Stream, IL) and Tacoma Anesthesia Associates Inc Ps (Tacoma, WA). 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 Summer Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Summer Williams affiliated with any hospitals?

According to CMS data, Summer Williams is affiliated with Northwestern Medicine Central Dupage Hospital.

When was this NPI record last updated?

The NPPES record for Summer Williams was last updated on November 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.