Hong Thoai Nguyen, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

036173827 Issued in IL

Practice address

405 W Jackson St
Carbondale, IL 62901-1462

Phone

(618) 549-0721

NPI assigned

Jul 14, 2022

Last updated

Jul 11, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Internal Medicine

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

24 On Physicians PCGroup PAC ID 5698688141, 274 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hospice of Southern Illinois, Inc Hospice, Belleville, IL, CCN 141504
• Herrin Hospital Hospital, Herrin, IL, CCN 140011
• Memorial Hospital of Carbondale Hospital, Carbondale, IL, CCN 140164
• Harrisburg Medical Center Hospital, Harrisburg, IL, CCN 140210
• Marshall Browning Hospital Hospital, Du Quoin, IL, CCN 141331
• Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hnguyen84475@sih.direct-ci.com
• Direct secure messaging: hong.thoai.nguyen.1@3547.direct.athenahealth.com

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

• 24 On Physicians, PC

  • Hospitalist Physician
  • Ottawa, IL
  • NPI 1346480431
  Medicare reassignment Care Compare group NPD
• 24 On Physicians, P.C.

  • Hospitalist Physician
  • Attleboro, MA
  • NPI 1790104511
  NPD

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

• Harrisburg Medical Center Inc

  • General Acute Care Hospital
  • Harrisburg, IL
  • NPI 1073580130
  Care Compare affiliation
• Hospice of Southern Illinois, Inc.

  • Community Based Hospice Care Agency
  • Belleville, IL
  • NPI 1720081805
  Care Compare affiliation
• Marshall Browning Hospital Association

  • Critical Access Hospital
  • Du Quoin, IL
  • NPI 1821099441
  Care Compare affiliation
• Southern Illinois Hospital Services

  dba Memorial Hospital of Carbondale

  • General Acute Care Hospital
  • Carbondale, IL
  • NPI 1093801797
  Care Compare affiliation
• Southern Illinois Hospital Services

  dba Herrin Hospital

  • General Acute Care Hospital
  • Herrin, IL
  • NPI 1528158573
  Care Compare affiliation
• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827
  Care Compare affiliation

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

{
    "created_epoch": "1657756800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752192000000",
    "number": "1487388534",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "625 N BRYAN AVE APT 14",
            "city": "CARTERVILLE",
            "state": "IL",
            "postal_code": "629181019",
            "telephone_number": "832-870-6081"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "405 W JACKSON ST",
            "city": "CARBONDALE",
            "state": "IL",
            "postal_code": "629011462",
            "telephone_number": "618-549-0721"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "HONG THOAI",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-07-14",
        "last_updated": "2025-07-11",
        "certification_date": "2025-07-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036173827",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• New Horizons Medical Associates, LLC
• New Horizons Obstetrics & Gynecology
• Aaron Newcomb, DO
• Abigail Ryan Newman, PHD
• Valerie Newton
• Jane Luanne Nichols, LCPC
• Henry Delano Nicolaides, D.C.
• Ian Anthony Nicolaides, D.C.
• Nicole Douglas Psychology and Wellness, PLLC
• Manogna Nookathota, MD

• Internal Medicine Physician in Carbondale, IL
• Providers in Carbondale, IL by specialty
• Internal Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 11, 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.