Individual provider Active NPI

Ronald Koehler, DO

  • Family Medicine Physician
  • Bay City, MI
National Provider Identifier
1104857978
Registry record updated Sep 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
RK07099 Issued in MI
Practice address
4175 N Euclid Ave
Suite 3
Bay City, MI 48706-2483
Phone
(989) 667-0491
Fax
(989) 667-0493
NPI assigned
Jul 6, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 6, 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 RK07099 MI Primary

Addresses

Primary practice location

4175 N Euclid Ave
Suite 3
Bay City, MI 48706-2483

Mailing address

1003 Woodside Ave
Essexville, MI 48732-1234
Phone (989) 892-7722

Other identifiers 6

IdentifierTypeStateIssuer
0P43930OtherMIMEDICARE GROUP
RK007099OtherBCBS
0Z96017OtherMIMEDICARE PTAN
5176034MedicaidMI
0E66019OtherMIMEDICARE GROUP
1786080MedicaidMI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
RK07099MIMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
McLaren Bay Region Past Accepting new patients
Euclid Medical Group PC Family Medicine Past Accepting new patients

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": "1152144000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788652800000",
    "number": "1104857978",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1003 WOODSIDE AVE",
            "city": "ESSEXVILLE",
            "state": "MI",
            "postal_code": "487321234",
            "telephone_number": "989-892-7722",
            "fax_number": "989-892-7455"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4175 N EUCLID AVE",
            "address_2": "SUITE 3",
            "city": "BAY CITY",
            "state": "MI",
            "postal_code": "487062483",
            "telephone_number": "989-667-0491",
            "fax_number": "989-667-0493"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOEHLER",
        "first_name": "RONALD",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-06",
        "last_updated": "2026-09-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MI",
            "license": "RK07099",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP",
            "identifier": "0P43930",
            "state": "MI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS",
            "identifier": "RK007099",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN",
            "identifier": "0Z96017",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "5176034",
            "state": "MI"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE GROUP",
            "identifier": "0E66019",
            "state": "MI"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1786080",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Bay City, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 6, 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.