Michael Henry Oster, D.O.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

Practice address

34555 N Red Oak LN
Gurnee, IL 60031-2563

Phone

(847) 244-0678

Fax

(847) 244-0886

NPI assigned

Aug 19, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in WI

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

Midwestern University, Chicago College of Osteopathic Med, 1978

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Addiction Services and Pharmacotherapy SCGroup PAC ID 2860818937, 4 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

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.

• Addiction Services and Pharmacotherapy, SC

  • Methadone Clinic
  • Madison, WI
  • NPI 1265922660
  Medicare reassignment Care Compare group NPD
• Addiction Services and Pharmacotherapy, SC

  • Methadone Clinic
  • West Allis, WI
  • NPI 1013572353
  NPD
• Addiction Services and Pharmacotherapy, SC

  • Methadone Clinic
  • Kenosha, WI
  • NPI 1538820790
  NPD
• Emergency Care Physician Services

  • Emergency Medicine Physician
  • Chicago, IL
  • NPI 1568493294
  NPD (past)
• Emergency Care Physician Services HP, LTD.

  • Emergency Medicine Physician
  • Chicago, IL
  • NPI 1104841774
  NPD (past)
• Ihc-Swedishamerican Emergency Physicians, LLC

  • Emergency Medicine Physician
  • Belvidere, IL
  • NPI 1093254179
  NPD (past)
• Unimed, LTD

  • Diagnostic Radiology Physician
  • Chicago, IL
  • NPI 1205849718
  NPD (past)
• St Josephs Hospital of the Hospital Sisters of the Third Order of St F

  • General Acute Care Hospital
  • Chippewa Falls, WI
  • NPI 1164429908
  NPD (past)

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

{
    "created_epoch": "1124409600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1356333991",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "34555 N RED OAK LN",
            "city": "GURNEE",
            "state": "IL",
            "postal_code": "600312563",
            "telephone_number": "847-244-0678",
            "fax_number": "847-244-0886"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "34555 N RED OAK LN",
            "city": "GURNEE",
            "state": "IL",
            "postal_code": "600312563",
            "telephone_number": "847-244-0678",
            "fax_number": "847-244-0886"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OSTER",
        "first_name": "MICHAEL",
        "middle_name": "HENRY",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-08-19",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WI",
            "license": "39679-021",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Oral & Maxillofacial Surgeons of Lake County, P.C.
• Jocelyn Orellana, FNP-BC
• Michelle Gaa Ortega, APN/CNP
• Judith Ortmeyer
• Peter M. Oshin, MD
• Carleen E. Otto, B.A.
• Sherry Owen, APN
• Kruti Yogesh Kumar Oza, PT
• Katerina Paganis
• Eun Sun Paik, MD

• Emergency Medicine Physician in Gurnee, IL
• Providers in Gurnee, 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 Jul 13, 2026; 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.