Nath Chongsuwat, M.D.

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

471 Issued in WI

Practice address

3400 Ministry Pkwy
Weston, WI 54476-5220

Phone

(715) 358-1000

NPI assigned

May 14, 2015

Last updated

Apr 17, 2026By 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 3

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in WI, IL, IN3 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

HospitalistAlso: Emergency Medicine

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Midwest Inpatient Anderson Health IncGroup PAC ID 3072908474, 46 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Anderson Hospital Hospital, Maryville, IL, CCN 140289

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: him@marshfieldclinichealthsystem.cernerdirect.com
• Direct secure messaging: nath.chongsuwat@marshfieldclinichealthsystem.cernerdirect.com
• Direct secure messaging: nchongsuwat483763@reidhealth.direct-ci.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.

• Midwest Inpatient Anderson Health, Inc

  • Emergency Medicine Physician
  • Maryville, IL
  • NPI 1821758608
  Medicare reassignment Care Compare group NPD
• Ascension Medical Group-Fox Valley Wisconsin, Inc

  dba Ascension Medical Group

  • Multi-Specialty Clinic/Center
  • Neenah, WI
  • NPI 1730126392

  General Practice

  Medicare reassignment NPD
• Ascension Medical Group-Southeast Wisconsin Inc

  dba Ascension Medical Group

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  Medicare reassignment NPD
• Marshfield Clinic Inc

  dba Marshfield Clinic Florida Teleradiology/Telehealth

  • Clinic/Center
  • Marshfield, WI
  • NPI 1952347981
  Medicare reassignment NPD
• MCHS Hospitals Inc

  dba Marshfield Medical Center

  • Clinic/Center
  • Marshfield, WI
  • NPI 1093221434

  Internal Medicine

  Medicare reassignment NPD
• Chicago Physician Services, P.C.

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1538921424
  Medicare reassignment NPD
• Midwest Emergency Anderson Health, Inc

  • Emergency Medicine Physician
  • Staunton, IL
  • NPI 1710647615
  Medicare reassignment NPD
• Reid Physician Associates, Inc.

  dba Reid Health Physician Associates

  • Internal Medicine Physician
  • Richmond, IN
  • NPI 1265689111
  Medicare reassignment NPD
• Ascension Medical Group-Fox Valley Wisconsin, Inc

  • Cardiovascular Disease Physician
  • Appleton, WI
  • NPI 1831890177
  NPD
• MCHS Hospitals Inc

  dba Marshfield Medical Center - Eau Claire Cancer Center

  • Durable Medical Equipment & Medical Supplies
  • Eau Claire, WI
  • NPI 1558230847
  NPD
• Reid Physician Associates, Inc

  dba Reid Health X-Ray Winchester

  • Radiology Clinic/Center
  • Winchester, IN
  • NPI 1417653221
  NPD
• Memorial Hospital Inc

  dba Marshfield Medical Center - Neillsville Clinic

  • Rural Health Clinic/Center
  • Neillsville, WI
  • NPI 1619966793
  NPD (past)

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

• Anderson Hospital

  • General Acute Care Hospital
  • Maryville, IL
  • NPI 1053481630
  Care Compare affiliation

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

{
    "created_epoch": "1431561600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776384000000",
    "number": "1225416829",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3400 MINISTRY PKWY",
            "city": "WESTON",
            "state": "WI",
            "postal_code": "544765220",
            "telephone_number": "715-358-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3 Erie Ct Ste L700",
            "address_purpose": "LOCATION",
            "city": "Oak Park",
            "state": "IL",
            "postal_code": "603022519",
            "country_code": "US",
            "telephone_number": "708-763-1222",
            "fax_number": "708-763-1471",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "121 S Wilke Rd Ste 606",
            "address_purpose": "LOCATION",
            "city": "Arlington Heights",
            "state": "IL",
            "postal_code": "600051529",
            "country_code": "US",
            "telephone_number": "224-400-1751",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9576 Hwy 70",
            "address_purpose": "LOCATION",
            "city": "Minocqua",
            "state": "WI",
            "postal_code": "545489067",
            "country_code": "US",
            "telephone_number": "715-358-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHONGSUWAT",
        "first_name": "NATH",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-05-14",
        "last_updated": "2026-04-17",
        "certification_date": "2026-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WI",
            "license": "84301",
            "primary": false
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "WI",
            "license": "471-320",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "WI",
            "license": "471",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "him@marshfieldclinichealthsystem.cernerdirect.com",
            "affiliation": "N",
            "address_1": "9576 Hwy 70",
            "city": "Minocqua",
            "state": "WI",
            "country_code": "US",
            "postal_code": "545489067",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Tiffany Ann Clairmore, SAC-IT, APSW
• Susan C Coady, PT
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• Harry C. Cole, MD

• Hospitalist Physician in Weston, WI
• Providers in Weston, WI by specialty
• Hospitalist Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 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.