Matthew Christopher Byrnes, MD

Primary specialty

Surgical Critical Care PhysicianTaxonomy code 2086S0102X

License

04-30808 Issued in KS

Practice address

520 Mary St Ste 520
Evansville, IN 47710-1682

Phone

(812) 424-8231

Fax

(812) 435-8794

NPI assigned

Mar 14, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 5

Addresses

Other identifiers 2

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MN, CA, GA, TX, MS, NJ, PA, ND, IA, VA, OH11 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 11

Specialty

Emergency Medicine

Education

Other, 2001

Medicare assignment

May accept Medicare assignment

Group practices

Avalon Medical Development CorporationGroup PAC ID 1850283995, 28 clinicians

Em Alliance Texas PLLCGroup PAC ID 4587192430, 88 clinicians

Western Virginia Regional Emergency Physicians LLCGroup PAC ID 4183991227, 88 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Allen Hospital Hospital, Waterloo, IA, CCN 160110
• Catalina Island Medical Center Hospital, Avalon, CA, CCN 051307
• Northwest Texas Hospital Hospital, Amarillo, TX, CCN 450209
• Lonesome Pine Hospital Hospital, Big Stone Gap, VA, CCN 490114
• Lee County Community Hospital Hospital, Pennington Gap, VA, CCN 491309
• Catalina Island Medical Center Nursing home, CCN 05Z307

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 47)

Interoperability endpoints

• Direct secure messaging: matthew.byrnes.p1@direct.glh.nextgenshare.com
• FHIR API: https://fhir-myrecord.cerner.com/r4/a23f1f77-4149-4903-a9ce-5c317ba44205/
• Direct secure messaging: matthew.byrnes.1@14021.direct.athenahealth.com
• Direct secure messaging: mbyrnes544413@direct.memorialcare.org
• Direct secure messaging: mbyrnes591621@hisp.ehr.sutterhealth.org
• Direct secure messaging: mbyrnes1193929@direct.unitypoint.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.

• Em Alliance Texas, PLLC

  • Emergency Medicine Physician
  • Amarillo, TX
  • NPI 1902621329

  Single Specialty, TX

  Medicare reassignment Care Compare group NPD
• Western Virginia Regional Emergency Physicians, LLC

  • Emergency Medicine Physician
  • Norton, VA
  • NPI 1386183028

  Single Specialty, VA

  Medicare reassignment Care Compare group NPD
• Avalon Medical Development Corporation

  • Critical Access Hospital
  • Avalon, CA
  • NPI 1346250347

  CA, Single Specialty

  Medicare reassignment Care Compare group NPD (past)
• Allen Memorial Hospital Corporation

  • Women's Health Nurse Practitioner
  • Waterloo, IA
  • NPI 1891772927

  IA, Single Specialty

  Medicare reassignment NPD
• Ccmma Ca PC

  • Critical Care Medicine (Anesthesiology) Physician
  • Redding, CA
  • NPI 1679293443

  CA, Single Specialty

  Medicare reassignment NPD
• Ccmma NJ LLC

  • Critical Care Medicine (Anesthesiology) Physician
  • Passaic, NJ
  • NPI 1124543095

  NJ, Single Specialty

  Medicare reassignment NPD
• Ccmma SC LLC

  • Critical Care Medicine (Internal Medicine) Physician
  • Sumter, SC
  • NPI 1245715796

  MS, Single Specialty

  Medicare reassignment NPD
• Cogent Healthcare of Texas, PA

  • Internal Medicine Physician
  • Dallas, TX
  • NPI 1992722953

  Single Specialty, TX

  Medicare reassignment NPD
• Copiah County Medical Center

  • Critical Access Hospital
  • Hazlehurst, MS
  • NPI 1588667281

  MS, Single Specialty

  Medicare reassignment NPD
• Forrest County General Hospital

  • Psychiatric Hospital Unit
  • Hattiesburg, MS
  • NPI 1295837631

  MS, Single Specialty

  Medicare reassignment NPD
• Gwinnett Physician Group, LLC

  • Internal Medicine Physician
  • Lawrenceville, GA
  • NPI 1578574661

  GA, Single Specialty

  Medicare reassignment NPD
• Hattiesburg Clinic PA

  • Multi-Specialty Clinic/Center
  • Hattiesburg, MS
  • NPI 1740213446

  MS, Single Specialty

  Medicare reassignment NPD

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

• Allen Memorial Hospital Corporation

  • General Acute Care Hospital
  • Waterloo, IA
  • NPI 1336231091

  Hospital

  Care Compare affiliation
• Avalon Medical Development Corporation

  • Critical Access Hospital
  • Avalon, CA
  • NPI 1346250347

  Hospital

  Care Compare affiliation
• Mountain States Health Alliance

  • Critical Access Hospital
  • Pennington Gap, VA
  • NPI 1205488996

  Hospital

  Care Compare affiliation
• Northwest Texas Healthcare System Inc

  • General Acute Care Hospital
  • Amarillo, TX
  • NPI 1467442418

  Hospital

  Care Compare affiliation
• Wellmont Health System

  • General Acute Care Hospital
  • Big Stone Gap, VA
  • NPI 1801826912

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1173830400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1063545317",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3817 W CORNELISON ST",
            "city": "WICHITA",
            "state": "KS",
            "postal_code": "672031032",
            "telephone_number": "601-268-5650",
            "fax_number": "601-579-5240"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "520 MARY ST STE 520",
            "city": "EVANSVILLE",
            "state": "IN",
            "postal_code": "477101682",
            "telephone_number": "812-424-8231",
            "fax_number": "812-435-8794"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "415 S 28th Ave",
            "address_purpose": "LOCATION",
            "city": "Hattiesburg",
            "state": "MS",
            "postal_code": "394017246",
            "country_code": "US",
            "telephone_number": "601-268-5650",
            "fax_number": "601-579-5240",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "311 E SPRUCE ST",
            "address_purpose": "LOCATION",
            "city": "GARDEN CITY",
            "state": "KS",
            "postal_code": "67846",
            "country_code": "US",
            "telephone_number": "620-275-3700",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1275 N High St",
            "address_purpose": "LOCATION",
            "city": "Hillsboro",
            "state": "OH",
            "postal_code": "451338273",
            "country_code": "US",
            "telephone_number": "937-393-6100",
            "fax_number": "614-293-2809",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "550 N Hillside St",
            "address_purpose": "LOCATION",
            "city": "Wichita",
            "state": "KS",
            "postal_code": "672144910",
            "country_code": "US",
            "telephone_number": "601-268-5650",
            "fax_number": "601-579-5240",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BYRNES",
        "first_name": "MATTHEW",
        "middle_name": "CHRISTOPHER",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-03-14",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "WI",
            "license": "787",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "MS",
            "license": "29844",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "KS",
            "license": "04-30808",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Emergency Medicine",
            "state": "OH",
            "license": "35.146279",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IN",
            "license": "01099194A",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "KS LICENSE",
            "identifier": "04-30808",
            "state": "KS"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200962440A",
            "state": "KS"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mbyrnes114774@directpatientrecord.com",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "415 S 28th Ave",
            "city": "Hattiesburg",
            "state": "MS",
            "country_code": "US",
            "postal_code": "394017246",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Samantha Byers, CRNA
• William Joseph Byland III
• Jenna Leigh Byrley, DPT
• Anne L Byrne, PT
• Joan Kimberly Byrne, D.C.
• Marjorie Mae Cabell, D.M.D.
• Juan C Cabrera Jr., MD
• Gabriel Dean Cabrillas, LCSW
• Trisha Johnson Cahill, DDS
• Alyssa Caldwell

• All providers in Evansville, IN
• Surgical Critical Care Physician in Indiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 18, 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.