DR. OLIVER P CHRISLER M.D.
NPI 1932268745
Emergency Medicine - Pediatric Emergency Medicine in Naperville, IL

Q: What is Oliver Chrisler's NPI number?

The NPI number for Oliver Chrisler is 1932268745. It was assigned to this individual provider in the NPPES registry on December 7, 2006.

Q: What is Oliver Chrisler's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Pediatric Emergency Medicine, with taxonomy code 207PP0204X.

Q: When was this NPI record last updated?

The NPPES record for Oliver Chrisler was last updated on January 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since December 07, 2006PECOS Enrolled

801 S WASHINGTON ST, NAPERVILLE, IL 60540(630) 527-3558(630) 527-5018 Get Directions Write a Review

NPPES record last updated: January 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 28, 2026, Nov 13, 2025 (2 updates tracked since 2025).

On this page

About Dr. Oliver P Chrisler M.d. NPPES

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

DR. OLIVER P CHRISLER M.D. (NPI 1932268745) is an individual pediatric emergency medicine provider in Naperville, Illinois, licensed in Illinois (036087542) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932268745

Entity TypeIndividualMale

Primary Taxonomy207PP0204X

Provider Legal NameDR. OLIVER P CHRISLERCredential: M.D.

Location Address801 S WASHINGTON STNaperville, IL 60540-7430

Mailing Address2650 Ridge Ave Ste 1223Evanston, IL 60201-1700 · (847) 570-2040 · Fax (847) 773-5315

Phone(630) 527-3558

Fax(630) 527-5018

Sole ProprietorNo

Enumeration DateDecember 7, 2006

Last NPPES UpdateJanuary 28, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 28, 2026

✔ NPI 1932268745 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyEmergency Medicine · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207PP0204X

License✔ Licensed in IL · 036087542

Definition

Pediatric Emergency Medicine is a clinical subspecialty that focuses on the care of the acutely ill or injured child in the setting of an emergency department.

Also ListedEmergency MedicineTaxonomy 207P00000X · License 036087542 (IL)

Also ListedPediatrics · Pediatric Emergency MedicineTaxonomy 2080P0204X · License 036087542 (IL)

801 S WASHINGTON ST, Naperville, IL 60540

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Oliver P Chrisler M.d. 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

Medicare enrollment records show Oliver Chrisler reassigns Medicare billing to 2 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

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.

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 20

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

DR. HAFEZ M. SAMI M.D.

Pain Medicine (Interventional Pain Medicine)

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 348-3300

MICHAEL J. HARTMANN MD

Emergency Medicine

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3000

SEEMA ISHAQ JEELANI D.O.

Emergency Medicine

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3000

CORTNEY COLE MD

Family Medicine (Hospice and Palliative Medicine)

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3000

EDWARD HOSPITAL

General Acute Care Hospital

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 655-0450

DR. HODA A. EL- ASMAR MD

Internal Medicine (Infectious Disease)

801 S WASHINGTON ST, EDWARD HOSPITAL, ADMINISTRATION, VPMA OFFICE
NAPERVILLE, IL 60540

Dupage County (630) 527-5647

AMAAR MASOOD MALIK DO

Radiology (Diagnostic Radiology)

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3200

DR. SANGITA RANGALA M.D.

Emergency Medicine

801 S WASHINGTON ST
NAPERVILLE, IL 60540

Dupage County (630) 527-3288

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 Oliver Chrisler's NPI number?

The NPI number for Oliver Chrisler is 1932268745. It was assigned to this individual provider in the NPPES registry on December 7, 2006.

Where is Oliver Chrisler located?

Oliver Chrisler practices at 801 S Washington St, Naperville, IL 60540. The listed phone number is (630) 527-3558.

What is Oliver Chrisler's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Pediatric Emergency Medicine, with taxonomy code 207PP0204X.

Is Oliver Chrisler enrolled in Medicare?

Yes. Oliver Chrisler is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Oliver Chrisler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oliver Chrisler reassigns Medicare benefits to 2 organizations: Edward Hospital (Naperville, 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 Oliver Chrisler'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 Oliver Chrisler was last updated on January 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.