NPIMap

Individual provider Active NPI

Guy Charles Leonard, DO

  • Hospitalist Physician
  • Lorain, OH
National Provider Identifier
1407599889
Registry record updated Aug 14, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
34.018042 Issued in OH
Practice address
3700 Kolbe Rd
Lorain, OH 44053-1611
Phone
(440) 960-4000
NPI assigned
Apr 14, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 14, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 34.018042 OH
Hospitalist Physician 208M00000X 34.018042 OH Primary

Addresses

Primary practice location

3700 Kolbe Rd
Lorain, OH 44053-1611

Mailing address

3700 Kolbe Rd
Lorain, OH 44053-1611

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OH
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251016001169 OH Practitioner - Internal Medicine 0941678957 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Community Hospitalist LLCGroup PAC ID 5496648123, 50 clinicians
Hni Medical Services of Ohio, LLCGroup PAC ID 1759620735, 40 clinicians

Practice addresses (Care Compare)

1400 W Main St
Bellevue, OH 44811-9088
Phone (419) 483-4040

200 W Lorain St
Oberlin, OH 44074-1026
Phone (440) 775-1211

Hospital & facility affiliations

  • Mercy Regional Medical Center Hospital, Lorain, OH, CCN 360172
  • Firelands Regional Medical Center Hospital, Sandusky, OH, CCN 360025
  • Mercy Allen Hospital Hospital, Oberlin, OH, CCN 361306

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Hni Medical Services of Ohio, LLC Internal Medicine CurrentSince Sep 1, 2025 Accepting new patients
Community Hospitalist, LLC Internal Medicine CurrentSince Sep 1, 2025 Accepting new patients
Mercy Health-Regional Medical Center LLC Past Accepting new patients

Locations

1400 W Main St
Bellevue, OH 44811
Phone (330) 563-0641

3700 Kolbe Rd
Lorain, OH 44053
Phone (440) 331-9520

18697 Bagley Rd
Middleburg Heights, OH 44130
Phone (440) 816-8000

200 W Lorain St
Oberlin, OH 44074
Phone (440) 775-1211

1111 Hayes Ave
Sandusky, OH 44870
Phone (419) 557-7455

Organizations & group practices 3

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.

Hospital & facility affiliations 8

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1649894400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755129600000",
    "number": "1407599889",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3700 KOLBE RD",
            "city": "LORAIN",
            "state": "OH",
            "postal_code": "440531611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3700 KOLBE RD",
            "city": "LORAIN",
            "state": "OH",
            "postal_code": "440531611",
            "telephone_number": "440-960-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEONARD",
        "first_name": "GUY",
        "middle_name": "CHARLES",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-14",
        "last_updated": "2025-08-14",
        "certification_date": "2025-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OH",
            "license": "34.018042",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "OH",
            "license": "34.018042",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lorain, OH

Sources for this page

Verify at the official NPI Registry.