Individual provider Active NPI

Marissa Ann Frosheiser, DMD

  • General Practice Dentistry
  • Bay City, MI
National Provider Identifier
1861239303
Registry record updated Jul 31, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
License
2901602215 Issued in MI
Practice address
3884 Monitor Rd
Bay City, MI 48706-9298
Phone
(989) 671-2000
NPI assigned
Jul 11, 2024
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 31, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
General Practice Dentistry 1223G0001X 2901602215 MI Primary

Addresses

Primary practice location

3884 Monitor Rd
Bay City, MI 48706-9298

Mailing address

8137 Wolfson LN
Grand Blanc, MI 48439-2714
Phone (586) 980-4229

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240731004654 MI Practitioner - Dentist 8527505148 Reassigns benefits to 1 organization

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
2901602215MIMDGeneral Practice Dentistry

Practice roles

OrganizationSpecialtyStatusNew patients
Great Lakes Bay Health Centers CurrentSince Jul 15, 2024 Accepting new patients
Great Lakes Bay Health Centers CurrentSince Jul 15, 2024 Accepting new patients

Locations

3884 Monitor Rd
Bay City, MI 48706
Phone (989) 671-2000

501 Lapeer Ave
Saginaw, MI 48607
Phone (989) 753-6000

501 Lapeer Ave
#R
Saginaw, MI 48607
Phone (989) 753-6000

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1720656000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785456000000",
    "number": "1861239303",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8137 WOLFSON LN",
            "city": "GRAND BLANC",
            "state": "MI",
            "postal_code": "484392714",
            "telephone_number": "586-980-4229"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3884 MONITOR RD",
            "city": "BAY CITY",
            "state": "MI",
            "postal_code": "487069298",
            "telephone_number": "989-671-2000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FROSHEISER",
        "first_name": "MARISSA",
        "middle_name": "ANN",
        "name_prefix": "Dr.",
        "credential": "DMD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2024-07-11",
        "last_updated": "2026-07-31",
        "certification_date": "2026-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "MI",
            "license": "2901602215",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bay City, MI

Sources for this page

Verify at the official NPI Registry.