NPIMap

Organization Active NPI

Great Lakes Bay Health Centers

  • Obstetrics & Gynecology Physician
  • Saginaw, MI
National Provider Identifier
1558620237
Registry record updated Jun 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
Legal business name
GREAT LAKES BAY HEALTH CENTERS
Practice address
800 S Washington Ave
Saginaw, MI 48601-2551
Phone
(989) 759-6435
Fax
(989) 759-6429
NPI assigned
May 15, 2012
Last updated
Jun 19, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jun 19, 2026

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

Authorized official

Name
Lisa M Galonska
Title
Vice President
Phone
(989) 759-6464

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X NU
Internal Medicine Physician 207R00000X NU
Obstetrics & Gynecology Physician 207V00000X NU Primary
Hospitalist Physician 208M00000X NU

Addresses

Primary practice location

800 S Washington Ave
Saginaw, MI 48601-2551

Mailing address

501 Lapeer Ave
Saginaw, MI 48607-1203
Phone (989) 759-6435

Other names 2

  • MyMichigan Medical Center Saginaw Other name
  • St. Mary's Hospital Other name

National Provider Directory

National Provider Directory
Tax ID family
Great Lakes Bay Health Center67 organizations share this tax ID, including this one

Organizations with this tax ID in the same state 24

This tax ID family is large, so up to 24 of its organizations in the same state are linked here.

View all 24

NPI Registry JSON

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

{
    "created_epoch": "1337040000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1781827200000",
    "number": "1558620237",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "501 LAPEER AVE",
            "city": "SAGINAW",
            "state": "MI",
            "postal_code": "486071203",
            "telephone_number": "989-759-6435",
            "fax_number": "989-759-6429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 S WASHINGTON AVE",
            "city": "SAGINAW",
            "state": "MI",
            "postal_code": "486012551",
            "telephone_number": "989-759-6435",
            "fax_number": "989-759-6429"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GREAT LAKES BAY HEALTH CENTERS",
        "organizational_subpart": "NO",
        "enumeration_date": "2012-05-15",
        "last_updated": "2026-06-19",
        "certification_date": "2026-06-19",
        "status": "A",
        "authorized_official_last_name": "GALONSKA",
        "authorized_official_first_name": "LISA",
        "authorized_official_middle_name": "M",
        "authorized_official_title_or_position": "VICE PRESIDENT",
        "authorized_official_telephone_number": "989-759-6464"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NU",
            "license": null,
            "primary": true
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "MyMichigan Medical Center Saginaw",
            "code": "5",
            "type": "Other Name"
        },
        {
            "organization_name": "St. Mary's Hospital",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Saginaw, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.