NPIMap

Individual provider Active NPI

Maria Chona Segismundo Antonio, MD

  • Family Medicine Physician
  • Sturgeon Bay, WI
National Provider Identifier
1740295237
Registry record updated Mar 10, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
48475 Issued in WI
Practice address
323 S 18TH Ave
Sturgeon Bay, WI 54235-1401
Phone
(920) 746-0510
Fax
(920) 743-1585
NPI assigned
Jul 31, 2006
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 10, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 48475 WI Primary

Addresses

Primary practice location

323 S 18TH Ave
Sturgeon Bay, WI 54235-1401

Mailing address

323 S 18TH Ave
Sturgeon Bay, WI 54235-1401
Phone (920) 746-0510

Other identifiers 1

IdentifierTypeStateIssuer
34688000MedicaidWI

Other names 1

  • Maria Chona Leyesa Segismundo Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20050829001038 WI Practitioner - Family Practice 8123070562 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 1988
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Door County Memorial Hospital 85 clinicians

Practice addresses (Care Compare)

2345 Canterbury LN
Sister Bay, WI 54234-5602
Phone (920) 868-3511

323 S 18TH Ave
Sturgeon Bay, WI 54235-1401
Phone (920) 743-5566

815 Jefferson St
Algoma, WI 54201-1733
Phone (920) 487-3496

Hospital & facility affiliations

  • Ascension at Home Home health agency, Sturgeon Bay, WI, CCN 527159
  • Unity Hospice Hospice, De Pere, WI, CCN 521503
  • Compassus Green Bay Hospice, Green Bay, WI, CCN 521595
  • Door County Medical Center Hospital, Sturgeon Bay, WI, CCN 521358
  • Bellin Memorial Hospital Hospital, Green Bay, WI, CCN 520049
  • St Vincent Hospital Hospital, Green Bay, WI, CCN 520075
  • Door County Memorial Hospital SNF Nursing home, Sturgeon Bay, WI, CCN 525377

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Door County Memorial Hospital CurrentSince Aug 15, 2005 Accepting new patients
Door County Memorial Hospital CurrentSince Aug 15, 2005 Accepting new patients

Locations

323 S 18th Ave
Sturgeon Bay, WI 54235
Phone (920) 743-5566

Interoperability endpoints

  • Direct secure messaging: maria.antonio@direct.dcmedical.org

Ownership & related parties

All facility ownership & control disclosures 1

Facilities whose Medicare enrollment lists this provider’s PECOS associate ID as an owner or managing party.

FacilityTypeRoleSince
Pete and Jelaine Horton CenterSturgeon Bay, WI, CCN 525377 Skilled nursing facility Operational/Managerial Control
Adp of the SNF		 Jul 1, 2024
Jul 1, 2024

Owned or controlled facilities with NPI records 1

Facilities whose Medicare enrollment lists this provider as an owner, officer, director or managing party.

Organizations & group practices 8

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.

Hospital & facility affiliations 12

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

NPI Registry JSON

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

{
    "created_epoch": "1154304000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773100800000",
    "number": "1740295237",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "323 S 18TH AVE",
            "city": "STURGEON BAY",
            "state": "WI",
            "postal_code": "542351401",
            "telephone_number": "920-746-0510"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "323 S 18TH AVE",
            "city": "STURGEON BAY",
            "state": "WI",
            "postal_code": "542351401",
            "telephone_number": "920-746-0510",
            "fax_number": "920-743-1585"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ANTONIO",
        "first_name": "MARIA CHONA",
        "middle_name": "SEGISMUNDO",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-07-31",
        "last_updated": "2026-03-10",
        "certification_date": "2026-03-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WI",
            "license": "48475",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "34688000",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARIA CHONA",
            "last_name": "SEGISMUNDO",
            "middle_name": "LEYESA",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Sturgeon Bay, WI

Sources for this page

Verify at the official NPI Registry.