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DR. RENEE LORI PEKSA-SINK D.O.
NPI 1043535917
Emergency Medicine in Naperville, IL

Active since April 02, 2010PECOS Enrolled
801 S. WASHINGTON ST., EMERGENCY MEDICINE, NAPERVILLE, IL 60540(630) 527-3000(630) 527-3371 Get Directions Write a Review

NPPES record last updated: November 25, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Renee Lori Peksa-sink D.o. NPPES

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

DR. RENEE LORI PEKSA-SINK D.O. (NPI 1043535917) is an individual emergency medicine provider in Naperville, Illinois, licensed in Illinois (036124670) and active in the NPI registry since April 2010. She is enrolled in Medicare PECOS and maintains a secondary practice location in Kankakee.

NPPES Registry Identity

NPI1043535917
Entity TypeIndividualFemale
Primary Taxonomy207P00000X
Provider Legal NameDR. RENEE LORI PEKSA-SINKCredential: D.O.
Location Address801 S. WASHINGTON ST., EMERGENCY MEDICINENaperville, IL 60540-7430
Mailing Address2650 Ridge Ave # 1223Evanston, IL 60201-1700 · (847) 570-2040 · Fax (847) 733-5315
Phone(630) 527-3000
Fax(630) 527-3371
Sole ProprietorNo
Enumeration DateApril 2, 2010
Last NPPES UpdateNovember 25, 2025
NPPES CertifiedNovember 25, 2025
✔ NPI 1043535917 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IL · 036124670
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
801 S. WASHINGTON ST., Naperville, IL 60540
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Secondary Practice Location 1

Location 1350 N Wall StKankakee, IL 60901-2901 · Phone (815) 935-7500

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Renee Lori Peksa-sink D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Renee Peksa-sink reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Edward Hospital
Same address
General Acute Care Hospital
801 S WASHINGTON ST
Naperville, IL 60540
  • Reassigned Medicare billing, Illinois enrollment
  • 268 clinicians in this Medicare group
NPI 1013969013 (630) 655-0450
Elmhurst Memorial Hospital
13 mi
General Acute Care Hospital
155 E BRUSH HILL RD
Elmhurst, IL 60126
  • Reassigned Medicare billing, Illinois enrollment
  • 205 clinicians in this Medicare group
NPI 1548306343 (331) 221-1000
Endeavor Health Medical Group
32 mi
Allergy & Immunology
1000 CENTRAL ST
Evanston, IL 60201
  • Reassigned Medicare billing, Illinois enrollment
  • 4,841 clinicians in this Medicare group
NPI 1497701882 (847) 570-5235

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 5

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
149 services145 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
148 services132 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
59 services59 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
19 services19 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
15 services14 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60540 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 16

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

ZANKHANA MASTER DESAI MD
Pediatrics
801 S. WASHINGTON ST., NICU
NAPERVILLE, IL 60540
Dupage County (630) 527-3234
VIBHABEN A THAKER MD
Pediatrics (Neonatal-Perinatal Medicine)
801 S. WASHINGTON ST., NICU
NAPERVILLE, IL 60540
Dupage County (630) 527-3234
SOFIA PADILLA M.D.
Pediatrics (Pediatric Critical Care Medicine)
801 S. WASHINGTON ST., PICU
NAPERVILLE, IL 60540
Dupage County (630) 527-3234
TRICIA LYN THOMSON M.D.
Pediatrics (Neonatal-Perinatal Medicine)
801 S. WASHINGTON ST., NICU
NAPERVILLE, IL 60540
Dupage County (630) 527-3234
DEANNA L HOLLEMAN-DURAY MD
Pediatrics (Neonatal-Perinatal Medicine)
801 S. WASHINGTON ST., NICU
NAPERVILLE, IL 60540
Dupage County (630) 527-3234
DR. AGNIESZKA NOWAK MD
Emergency Medicine
801 S. WASHINGTON ST., EMERGENCY MEDICINE
NAPERVILE, IL 60540
Dupage County (630) 527-3000
DR. KATRINA SKOOG NGUYEN DO
Emergency Medicine
801 S. WASHINGTON ST., EMERGENCY MEDICINE
NAPERVILE, IL 60540
Dupage County (630) 527-3000
DR. KARY K WISNIEWSKI M.D.
Emergency Medicine
801 S. WASHINGTON ST., EDWARD HOSPITAL
NAPERVILLE, IL 60540
Dupage County (630) 527-3358

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 Renee Peksa-sink's NPI number?

The NPI number for Renee Peksa-sink is 1043535917. It was assigned to this individual provider in the NPPES registry on April 2, 2010.

Where is Renee Peksa-sink located?

Renee Peksa-sink practices at 801 S. Washington St. Emergency Medicine, Naperville, IL 60540. The listed phone number is (630) 527-3000.

What is Renee Peksa-sink's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Renee Peksa-sink enrolled in Medicare?

Yes. Renee Peksa-sink is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Renee Peksa-sink's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Renee Peksa-sink reassigns Medicare benefits to 3 organizations: Edward Hospital (Naperville, IL), Elmhurst Memorial Hospital (Elmhurst, IL) and Endeavor Health Medical Group (Evanston, 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 Renee Peksa-sink's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Renee Peksa-sink was last updated on November 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.