Michael J Oleyar, D.O.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

70252 Issued in WI

Practice address

3134 N Clark St
Chicago, IL 60657-4414

Phone

(312) 766-4949

NPI assigned

Mar 28, 2010

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 3

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in WI, IL, MI3 enrollments

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 3

Specialty

Anesthesiology

Education

Michigan State University College of Osteopathic Medicine, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Endeavor Health Medical GroupGroup PAC ID 2163334699, 3,330 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwest Community Hospital 1 Hospital, Arlington Heights, IL, CCN 140252
• Mymichigan Medical Center Midland Hospital, Midland, MI, CCN 230222
• Mymichigan Medical Center Clare Hospital, Clare, MI, CCN 230180

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: moleyar515702@direct.froedtert.com
• Direct secure messaging: moleyar315362@direct.myadvocateaurora.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.

• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882

  Anesthesiology

  Medicare reassignment Care Compare group NPD
• Anesthesia Associates, LTD

  • Pain Medicine (Anesthesiology) Physician
  • Aurora, IL
  • NPI 1952308223
  Medicare reassignment NPD
• Midwest Anesthesia Partners, LLC

  • Anesthesiology Physician
  • Chicago, IL
  • NPI 1255380184
  Medicare reassignment NPD
• Northwestern Medical Faculty Foundation

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment NPD
• Capital Area Anesthesia PC

  • Pain Medicine (Anesthesiology) Physician
  • Okemos, MI
  • NPI 1538105010
  Medicare reassignment NPD
• Edward W. Sparrow Hospital Association

  • Anesthesiology Physician
  • Lansing, MI
  • NPI 1366498107
  Medicare reassignment NPD
• Munson Healthcare Otsego Memorial Hospital

  • Certified Registered Nurse Anesthetist
  • Gaylord, MI
  • NPI 1376568865
  Medicare reassignment NPD
• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086

  Anesthesiology

  Medicare reassignment NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Northwestern Medical Faculty Foundation

  • Durable Medical Equipment & Medical Supplies
  • Chicago, IL
  • NPI 1417718479
  NPD
• Edward W Sparrow Hospital Association

  • Adult Health Nurse Practitioner
  • Lansing, MI
  • NPI 1265220438
  NPD
• Munson Healthcare Otsego Memorial Hospital

  • Emergency Medical Services (Emergency Medicine) Physician
  • Gaylord, MI
  • NPI 1376657239
  NPD

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

• Northwest Community Hospital

  • General Acute Care Hospital
  • Arlington Heights, IL
  • NPI 1578932869
  Care Compare affiliation
• Northwest Community Hospital

  • General Acute Care Hospital
  • Arlington Heights, IL
  • NPI 1770531600
  Care Compare affiliation
• Mymichigan Medical Center Clare

  • General Acute Care Hospital
  • Clare, MI
  • NPI 1568414589
  Care Compare affiliation
• Mymichigan Medical Center Midland

  • Multi-Specialty Clinic/Center
  • Midland, MI
  • NPI 1205889490

  Hospital

  Care Compare affiliation
• Mymichigan Medical Center Midland

  • General Acute Care Hospital
  • Midland, MI
  • NPI 1376973149
  Care Compare affiliation
• Mymichigan Medical Center Midland

  • General Acute Care Hospital
  • Midland, MI
  • NPI 1902841414
  Care Compare affiliation

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

{
    "created_epoch": "1269734400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742774400000",
    "number": "1386969848",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3134 N CLARK ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606574414",
            "telephone_number": "312-766-4949"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4000 Wellness Dr",
            "address_purpose": "LOCATION",
            "city": "Midland",
            "state": "MI",
            "postal_code": "486704414",
            "country_code": "US",
            "telephone_number": "989-839-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLEYAR",
        "first_name": "MICHAEL",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-03-28",
        "last_updated": "2025-03-24",
        "certification_date": "2025-03-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IL",
            "license": "036150017",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "276686",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "70252",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1386969848",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100083194",
            "state": "WI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1386969848",
            "state": "NV"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "3134 N Clark St",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606574414",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "moleyar315362@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "3134 N Clark St",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606574414",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Richard Neal Olen, MD
• Erin Miriam Oleniczak, M.S., OTR/L
• Maureen Oleniczak, M.S.
• Melissa B Oles
• Lance Bryant Oleson, CRNA
• Yelena Oleynikov, M.D.
• Olga L Saavedra M.D. SC
• Olga Lansky MD, SC
• Olga Leahy DDS PC
• Olga Mest Interpreters Inc

• Anesthesiology Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Anesthesiology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 24, 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.