Mark David Livak, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

036137811 Issued in IL

Practice address

801 S Washington St
Naperville, IL 60540-7430

Phone

(630) 527-3000

NPI assigned

Jun 29, 2011

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

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

Specialty

Emergency Medicine

Education

Rush Medical College of Rush University, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Edward HospitalGroup PAC ID 0042108110, 98 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Edward Hospital Hospital, Naperville, IL, CCN 140231

Merit-based Incentive Payment System (MIPS)

Final score

93.8 of 100Reported as individual

Quality

85

Promoting interoperability

100

Improvement activities

40

Cost

76.83

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhirprd.edward.org/fhirprd/api/FHIR/R4/
• FHIR API: https://api.platform.athenahealth.com/14272/brand/70/csg/1/fhir/r4
• Direct secure messaging: mlivak204561@direct.edward.org

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

• Edward Hospital

  • General Acute Care Hospital
  • Naperville, IL
  • NPI 1013969013
  Medicare reassignment Care Compare group NPD
• Aurora Emergency Physicians, LLC

  • Emergency Medicine Physician
  • Yorkville, IL
  • NPI 1407379423
  Medicare reassignment NPD
• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Elgin, IL
  • NPI 1912283110
  Medicare reassignment NPD
• Illinois Emergency Medicine Specialists, LLC

  • Emergency Medical Services (Emergency Medicine) Physician
  • Bolingbrook, IL
  • NPI 1003150962
  Medicare reassignment NPD
• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882
  Medicare reassignment NPD (past)
• Aurora Emergency Physicians, LLC

  • Emergency Medicine Physician
  • Aurora, IL
  • NPI 1508389628
  NPD
• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Kankakee, IL
  • NPI 1689199614
  NPD
• Cepamerica Illinois LLP

  • Emergency Medicine Physician
  • Springfield, IL
  • NPI 1871360297
  NPD
• Edward Hospital

  • Home Health Agency
  • Naperville, IL
  • NPI 1912930645
  NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Laboratory & Pathology Diagnostics, LLC

  • Anatomic Pathology & Clinical Pathology Physician
  • Naperville, IL
  • NPI 1285713826
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Edward Hospital

  • General Acute Care Hospital
  • Naperville, IL
  • NPI 1427069632
  Care Compare affiliation

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

{
    "created_epoch": "1309305600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764028800000",
    "number": "1548557481",
    "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": "847-982-3362"
        },
        {
            "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": "630-527-3000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1900 W Polk St",
            "address_2": "Cook County Hospital Department of Emergency Medicine",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123723",
            "country_code": "US",
            "telephone_number": "312-864-0060",
            "fax_number": "312-864-9656",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LIVAK",
        "first_name": "MARK",
        "middle_name": "DAVID",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-06-29",
        "last_updated": "2025-11-25",
        "certification_date": "2025-11-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "036137811",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": "125060588",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PHYSICIAN TEMPORARY LICENSE",
            "identifier": "125060588",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Rebecca R Litz, LCSW
• Kuei S Liu
• Li Liu
• Libin Liu
• Tao Liu
• Living Well Therapy Services, PLLC
• Diana V Liz, PHARMD
• LJ Senior Services Corporation
• Colleen Llacsa
• Eden Ann Llewellyn, MMS PAC

• Emergency Medicine Physician in Naperville, IL
• Providers in Naperville, IL by specialty
• Emergency Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 25, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.