Osasumwen O. Osayimwen, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

036121023 Issued in IL

Practice address

2100 Pfingsten Rd Ste 3001a
Glenview, IL 60026

Phone

(847) 657-5840

Fax

(847) 657-5732

NPI assigned

Nov 27, 2007

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 IL, WI2 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 2

Specialty

HospitalistAlso: Internal Medicine

Education

Boston University School of Medicine, 2004

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

• Northshore University Healthsystem - Evanston Hospital Hospital, Evanston, IL, CCN 140010
• Citadel of Glenview,the Nursing home, Glenview, IL, CCN 145741

Merit-based Incentive Payment System (MIPS)

Final score

84.9 of 100Reported as group

Quality

75.91

Promoting interoperability

99

Improvement activities

40

Cost

74.6

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  Medicare reassignment NPD
• Columbia St. Mary'S Hospital Milwaukee, Inc

  • Multi-Specialty Clinic/Center
  • Milwaukee, WI
  • NPI 1023064482
  Medicare reassignment NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Columbia St. Mary'S Hospital Milwaukee Inc

  • Psychiatric Hospital Unit
  • Mequon, WI
  • NPI 1417600909
  NPD
• Wyse Eyecare SC

  • Ophthalmology Physician
  • Northbrook, IL
  • NPI 1316272289
  NPD (past)

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

• Citadel of Glenview LLC

  • Skilled Nursing Facility
  • Glenview, IL
  • NPI 1902413537

  Nursing home

  Care Compare affiliation
• Endeavor Health Clinical Operations

  • General Acute Care Hospital
  • Evanston, IL
  • NPI 1184670549
  Care Compare affiliation

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

{
    "created_epoch": "1196121600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757376000000",
    "number": "1376724898",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2100 PFINGSTEN RD STE 3001A",
            "city": "GLENVIEW",
            "state": "IL",
            "postal_code": "600261301",
            "telephone_number": "847-657-5840",
            "fax_number": "847-657-5732"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2100 PFINGSTEN RD STE 3001A",
            "city": "GLENVIEW",
            "state": "IL",
            "postal_code": "60026",
            "telephone_number": "847-657-5840",
            "fax_number": "847-657-5732"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5145 N. California Ave.",
            "address_2": "IM/ICU Hospitalists-Suite 331",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606253661",
            "country_code": "US",
            "telephone_number": "847-570-1027",
            "fax_number": "773-989-1734",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2100 Pfingsten Rd",
            "address_2": "Ste 3001A",
            "address_purpose": "LOCATION",
            "city": "Glenview",
            "state": "IL",
            "postal_code": "600261301",
            "country_code": "US",
            "telephone_number": "847-657-5840",
            "fax_number": "847-657-5732",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OSAYIMWEN",
        "first_name": "OSASUMWEN",
        "middle_name": "O.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-11-27",
        "last_updated": "2025-09-09",
        "certification_date": "2025-09-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036121023",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036121023",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jacob Orlowski
• Emily Orourke
• Orrin M Scheff MDSC
• Nicholas Michael Orslini, PHARMD
• Marlen Ortega Cruz, MD
• Pamela Olachi Osisioma, OTR/L
• Otolaryngology Group LTD
• Kristin Otolski, PA-C
• Janice Ottlinger, COTA/L
• Adenike Olubukola Otuneyinwa

• Hospitalist Physician in Glenview, IL
• Providers in Glenview, IL by specialty
• Hospitalist Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 9, 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.