Nelson C Yu, MD

Primary specialty

Sleep Medicine (Internal Medicine) PhysicianTaxonomy code 207RS0012X

License

03615448 Issued in IL

Practice address

2044 Madison Ave Ste 15
Granite City, IL 62040-4641

Phone

(618) 798-8405

Fax

(509) 798-8116

NPI assigned

May 31, 2006

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in WA, IL2 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

Pulmonary DiseaseAlso: Sleep Medicine

Education

Other, 1991

Medicare assignment

May accept Medicare assignment

Group practices

Ahs Il Medical Group LLCGroup PAC ID 5496111676, 46 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Gateway Regional Medical Center Hospital, Granite City, IL, CCN 140125
• Alton Memorial Hospital Hospital, Alton, IL, CCN 140002
• Anderson Hospital Hospital, Maryville, IL, CCN 140289
• Red Bud Regional Hospital Hospital, Red Bud, IL, CCN 141348

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nelson.yu.1@28328.direct.athenahealth.com
• Direct secure messaging: nyu@yourcarecommunity.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.

• Ahs Il Medical Group LLC

  • Clinic/Center
  • Granite City, IL
  • NPI 1659098101
  Medicare reassignment Care Compare group NPD
• RCCH Trios Health LLC

  • Internal Medicine Physician
  • Kennewick, WA
  • NPI 1831682806
  Medicare reassignment NPD
• Deaconess Illinois Specialty Clinic, Inc.

  • Surgery Physician
  • Marion, IL
  • NPI 1972210235
  Medicare reassignment
• Appalachian Regional Healthcare, Inc

  • Community/Retail Pharmacy
  • Cumberland, KY
  • NPI 1710870811
  NPD (past)

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

• Alton Memorial Hospital

  • Ambulance
  • Alton, IL
  • NPI 1063669117

  Hospital

  Care Compare affiliation
• Alton Memorial Hospital

  • General Acute Care Hospital
  • Alton, IL
  • NPI 1548278476
  Care Compare affiliation
• American Healthcare Systems Illinois LLC

  • General Acute Care Hospital
  • Granite City, IL
  • NPI 1326765884
  Care Compare affiliation
• American Healthcare Systems Illinois LLC

  • Urgent Care Clinic/Center
  • Glen Carbon, IL
  • NPI 1700586344

  Hospital

  Care Compare affiliation
• American Healthcare Systems Illinois LLC

  • Clinic/Center
  • Edwardsville, IL
  • NPI 1760182307

  Hospital

  Care Compare affiliation
• American Healthcare Systems Illinois LLC

  • Clinic/Center
  • Waterloo, IL
  • NPI 1770283301

  Hospital

  Care Compare affiliation
• American Healthcare Systems Illinois LLC

  • Urgent Care Clinic/Center
  • Columbia, IL
  • NPI 1982304523

  Hospital

  Care Compare affiliation
• Anderson Hospital

  • General Acute Care Hospital
  • Maryville, IL
  • NPI 1053481630
  Care Compare affiliation
• Deaconess Illinois Red Bud Regional Hospital Inc

  • Critical Access Hospital
  • Red Bud, IL
  • NPI 1407573132
  Care Compare affiliation

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

{
    "created_epoch": "1149033600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776556800000",
    "number": "1447297601",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2044 MADISON AVE STE 15",
            "city": "GRANITE CITY",
            "state": "IL",
            "postal_code": "620404641",
            "telephone_number": "618-798-8405",
            "fax_number": "509-798-8116"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2044 MADISON AVE STE 15",
            "city": "GRANITE CITY",
            "state": "IL",
            "postal_code": "620404641",
            "telephone_number": "618-798-8405",
            "fax_number": "509-798-8116"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YU",
        "first_name": "NELSON",
        "middle_name": "C",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-05-31",
        "last_updated": "2026-04-19",
        "certification_date": "2026-04-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RS0012X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Sleep Medicine",
            "state": "IL",
            "license": "03615448",
            "primary": true
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "WA",
            "license": "MD00045444",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "IL",
            "license": "036.154438",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sarah J Williamson, MSN, RN
• Evan Michael Willmore, LCSW
• Jason A Winship
• Laura A Winter, RPH
• Kacey Woulfe, CPNP-PC
• Hannah Ziegler, PA-C

• Sleep Medicine (Internal Medicine) Physician in Granite City, IL
• Providers in Granite City, IL by specialty
• Sleep Medicine (Internal Medicine) Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 19, 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.