Organization Active NPI

St. Clair Obstetrics & Gynecology, PLLC

  • Obstetrics & Gynecology Physician
  • Port Huron, MI
National Provider Identifier
1184055394
Registry record updated Feb 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X
License
5101015538 Issued in MI
Legal business name
ST. CLAIR OBSTETRICS & GYNECOLOGY, PLLC
Practice address
2603 Electric Ave Ste 2
Port Huron, MI 48060-6588
Phone
(810) 329-3333
Fax
(810) 329-1199
NPI assigned
Dec 13, 2013
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Feb 4, 2026

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

Authorized official

Name
Teresa Powser
Title
Office Manager
Phone
(810) 329-3333

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 207V00000X 5101015538 MI Primary

Addresses

Primary practice location

2603 Electric Ave Ste 2
Port Huron, MI 48060-6588

Mailing address

2603 Electric Ave Ste 2
Port Huron, MI 48060-6588
Phone (810) 329-3333

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20140218001941 MI Part B Supplier - Clinic/Group Practice 9537398474 Receives reassigned benefits from 2 practitioners
Practice locations: East China, MI

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
23D2071513St Clair Obstetrics Gynecology, PLLC2603 Electric Avenue Suite 2, Port Huron, MI 48060Provider-performed microscopyJan 13, 2028

National Provider Directory

National Provider Directory

Locations

4154 S River Rd
East China, MI 48054
Phone (810) 329-2350

2603 Electric Ave
Ste 2
Port Huron, MI 48060
Phone (810) 329-3333

Practitioners & affiliated clinicians

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1386892800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1770163200000",
    "number": "1184055394",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2603 ELECTRIC AVE STE 2",
            "city": "PORT HURON",
            "state": "MI",
            "postal_code": "480606588",
            "telephone_number": "810-329-3333",
            "fax_number": "810-329-1199"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2603 ELECTRIC AVE STE 2",
            "city": "PORT HURON",
            "state": "MI",
            "postal_code": "480606588",
            "telephone_number": "810-329-3333",
            "fax_number": "810-329-1199"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ST. CLAIR OBSTETRICS & GYNECOLOGY, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2013-12-13",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A",
        "authorized_official_last_name": "POWSER",
        "authorized_official_first_name": "TERESA",
        "authorized_official_title_or_position": "OFFICE MANAGER",
        "authorized_official_telephone_number": "810-329-3333"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Obstetrics & Gynecology",
            "state": "MI",
            "license": "5101015538",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Port Huron, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.