Individual provider Active NPI

Ronald A Charles, M.D.

  • Internal Medicine Physician
  • Toledo, OH
National Provider Identifier
1487689477
Registry record updated Apr 23, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
4301056955 Issued in MI
Practice address
3130 Executive Pkwy
5TH Floor
Toledo, OH 43606-5529
Phone
(419) 537-2077
NPI assigned
Jul 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 23, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 203248 MA
Internal Medicine Physician 207R00000X 4301056955 MI Primary
Internal Medicine Physician 207R00000X C1-0008072 DE

Addresses

Primary practice location

3130 Executive Pkwy
5TH Floor
Toledo, OH 43606-5529

Mailing address

1098 Stafford PL
Detroit, MI 48207-3813
Phone (517) 897-3239

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 Medicine

State licenses

LicenseStateTypeSpecialty
C1-0008072DEMDInternal Medicine Physician
203248MAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Reliant Medical Group, Inc Internal Medicine Past Accepting new patients
Reliant Medical Group, Inc 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": "1152576000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776902400000",
    "number": "1487689477",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1098 STAFFORD PL",
            "city": "DETROIT",
            "state": "MI",
            "postal_code": "482073813",
            "telephone_number": "517-897-3239"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3130 EXECUTIVE PKWY",
            "address_2": "5TH FLOOR",
            "city": "TOLEDO",
            "state": "OH",
            "postal_code": "436065529",
            "telephone_number": "419-537-2077"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHARLES",
        "first_name": "RONALD",
        "middle_name": "A",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-11",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "203248",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "4301056955",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DE",
            "license": "C1-0008072",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Toledo, OH

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 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.