Individual provider Active NPI

Oliver P Chrisler, M.D.

  • Pediatric Emergency Medicine (Emergency Medicine) Physician
  • Naperville, IL
National Provider Identifier
1932268745
Registry record updated Jan 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Emergency Medicine (Emergency Medicine) PhysicianTaxonomy code 207PP0204X
License
036087542 Issued in IL
Practice address
801 S Washington St
Naperville, IL 60540-7430
Phone
(630) 527-3558
Fax
(630) 527-5018
NPI assigned
Dec 7, 2006
Last updated
Jan 28, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 28, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine Physician 207P00000X 036087542 IL
Pediatric Emergency Medicine (Emergency Medicine) Physician 207PP0204X 036087542 IL Primary
Pediatric Emergency Medicine (Pediatrics) Physician 2080P0204X 036087542 IL

Addresses

Primary practice location

801 S Washington St
Naperville, IL 60540-7430

Mailing address

2650 Ridge Ave Ste 1223
Evanston, IL 60201-1700
Phone (847) 570-2040

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20131106000576 IL Practitioner - Emergency MedicinePractitioner - Pediatric Medicine 7719112325 Reassigns benefits to 2 organizations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Endeavor Health Medical Group Emergency Medicine CurrentSince Nov 13, 2025 Accepting new patients
Edward Hospital CurrentSince Sep 26, 2013 Accepting new patients
Endeavor Health Medical Group CurrentSince Nov 13, 2025 Accepting new patients
Edward Hospital CurrentSince Sep 26, 2013 Accepting new patients
Inphynet Primary Care Physicians Midwest, S.C. Emergency Medicine Past Accepting new patients

Locations

9532 Eagle Way
Chicago, IL 60678

2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222

2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206

2650 Ridge Ave
Ste 1223
Evanston, IL 60201
Phone (847) 982-3175

2650 Ridge Ave
#1223
Evanston, IL 60201
Phone (847) 982-3172

801 S Washington St
Naperville, IL 60540
Phone (312) 355-0450

Interoperability endpoints

  • FHIR API: https://fhirprd.edward.org/fhirprd/api/FHIR/R4/
  • Direct secure messaging: ochrisler22628@direct.edward.org

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1165449600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769558400000",
    "number": "1932268745",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2650 RIDGE AVE STE 1223",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602011700",
            "telephone_number": "847-570-2040",
            "fax_number": "847-773-5315"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "801 S WASHINGTON ST",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605407430",
            "telephone_number": "630-527-3558",
            "fax_number": "630-527-5018"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHRISLER",
        "first_name": "OLIVER",
        "middle_name": "P",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-07",
        "last_updated": "2026-01-28",
        "certification_date": "2026-01-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036087542",
            "primary": false
        },
        {
            "code": "207PP0204X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Pediatric Emergency Medicine",
            "state": "IL",
            "license": "036087542",
            "primary": true
        },
        {
            "code": "2080P0204X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Emergency Medicine",
            "state": "IL",
            "license": "036087542",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Naperville, IL

Sources for this page

Verify at the official NPI Registry.