Gregory Tyler, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

40271 Issued in WI

Practice address

1000 N Oak Ave
Marshfield, WI 54449-5703

Phone

(715) 387-5511

NPI assigned

Sep 2, 2006

Last updated

Feb 5, 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 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WI, MN2 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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gregory.tyler@marshfieldclinichealthsystem.cernerdirect.com
• Direct secure messaging: gtyler18757@direct.aspirus.org

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.

• Aspirus Medford Hospital & Clinics, Inc.

  dba Aspirus Gilman Clinic

  • Rural Health Clinic/Center
  • Gilman, WI
  • NPI 1285703173
  Medicare reassignment NPD
• Aspirus Medford Hospital & Clinics, Inc.

  dba Aspirus Medford Hospital

  • Critical Access Hospital
  • Medford, WI
  • NPI 1619079597
  Medicare reassignment NPD
• Aspirus Rhinelander & Tomahawk Hospitals & Clinics, Inc.

  dba Aspirus Stevens Point Clinic - Illinois Avenue

  • Clinic/Center
  • Stevens Point, WI
  • NPI 1144991340
  Medicare reassignment NPD
• Beaver Dam Community Hospitals Inc

  dba Marshfield Medical Center - Beaver Dam Professional Services

  • Clinic/Center
  • Beaver Dam, WI
  • NPI 1972188555
  Medicare reassignment NPD
• Divine Savior Healthcare, Inc.

  dba Aspirus Divine Savior Hospital

  • General Acute Care Hospital
  • Portage, WI
  • NPI 1124083894
  Medicare reassignment NPD
• Flambeau Hospital Inc

  dba MMC - Park Falls Outreach Services

  • Clinic/Center
  • Park Falls, WI
  • NPI 1194317966
  Medicare reassignment NPD
• Flambeau Hospital Inc

  dba Marshfield Medical Center - Park Falls

  • Critical Access Hospital
  • Park Falls, WI
  • NPI 1700963048
  Medicare reassignment NPD
• Lakeview Medical Center Inc of Rice Lake

  dba Marshfield Medical Center - Rice Lake Professional Services

  • Clinic/Center
  • Rice Lake, WI
  • NPI 1093201832
  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
  Medicare reassignment NPD
• MCHS Hospitals Inc

  dba Marshfield Medical Center - Ladysmith

  • Critical Access Hospital
  • Ladysmith, WI
  • NPI 1952890873
  Medicare reassignment NPD
• Memorial Hospital Inc

  dba Marshfield Medical Center - Neillsville

  • Critical Access Hospital
  • Neillsville, WI
  • NPI 1346239373
  Medicare reassignment NPD

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

{
    "created_epoch": "1157155200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770249600000",
    "number": "1871695452",
    "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": "1000 N OAK AVE",
            "city": "MARSHFIELD",
            "state": "WI",
            "postal_code": "544495703",
            "telephone_number": "715-387-5511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3400 Ministry Pkwy",
            "address_purpose": "LOCATION",
            "city": "Weston",
            "state": "WI",
            "postal_code": "544765220",
            "country_code": "US",
            "telephone_number": "715-393-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TYLER",
        "first_name": "GREGORY",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-09-02",
        "last_updated": "2026-02-05",
        "certification_date": "2026-02-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WI",
            "license": "40271",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "32478100",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kristi Trecartin, SLP
• Thu-Thao Trinh, MD
• Purviben Kishorkumar Trivedi-Ziemba, LMFT-IT
• Susan Trudeau, NP
• John T Twiggs, MD
• Andrew C Urquhart, MD
• Andrew Vale
• Rebekah Lynn Van Erp, NURSE PRACTITIONER
• Molly Van Hoven
• Kristen A Van Lieshout, DNP

• Obstetrics & Gynecology Physician in Marshfield, WI
• Providers in Marshfield, WI by specialty
• Obstetrics & Gynecology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 5, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.