NPIMap

Individual provider Active NPI

Herman Gahing Leung, DO

  • Family Medicine Physician
  • Quincy, IL
National Provider Identifier
1346770377
Registry record updated Sep 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
125070750 Issued in IL
Practice address
612 N 11TH St
Quincy, IL 62301-2662
Phone
(217) 228-9484
Fax
(217) 228-3030
NPI assigned
Jun 13, 2017
Last updated
Sep 2, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 2, 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 125070750 IL Primary

Addresses

Primary practice location

612 N 11TH St
Quincy, IL 62301-2662

Mailing address

PO Box 19639
Springfield, IL 62794-9639
Phone (217) 545-3787

Other practice location 1

102 Prairie Mills Rd
Golden, IL 62339-1055
Phone (217) 223-8400

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
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
I20210331001751 IL Practitioner - Family Practice 5597035709 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

612 N 11TH St
Quincy, IL 62301-2662
Phone (217) 224-9484

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
125070750ILMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Blessing Hospital CurrentSince Jul 25, 2022 Accepting new patients
Blessing Hospital CurrentSince Jul 25, 2022 Accepting new patients
Transitions of Western Illinois Inc. CurrentSince Jan 26, 2025 Accepting new patients
Blessing Hospital Family Medicine CurrentSince Nov 30, 2024 Accepting new patients
Blessing Hospital Current Accepting new patients
Board of Trustees of Southern Illinois University Family Medicine CurrentSince Dec 29, 2020 Accepting new patients
Board of Trustees of Southern Illinois University CurrentSince Dec 29, 2020 Accepting new patients
Siuphysicians & Surgeons, Inc. Current Accepting new patients
Southern Illinois University Past Accepting new patients

Locations

1005 Broadway St
Quincy, IL 62301

4409 Maine St
Quincy, IL 62305
Phone (217) 223-0423

612 N 11th St
Quincy, IL 62301
Phone (217) 224-9484

520 N 4th St
Springfield, IL 62702
Phone (217) 757-8100

Interoperability endpoints

  • Direct secure messaging: hermanleung@siu.allscriptsdirect.net
  • FHIR API: https://fhir.blessinghospital.com/R4/open-Prod

Organizations & group practices 9

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 3

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": "1497312000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788307200000",
    "number": "1346770377",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 19639",
            "city": "SPRINGFIELD",
            "state": "IL",
            "postal_code": "627949639",
            "telephone_number": "217-545-3787"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "612 N 11TH ST",
            "city": "QUINCY",
            "state": "IL",
            "postal_code": "623012662",
            "telephone_number": "217-228-9484",
            "fax_number": "217-228-3030"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "102 Prairie Mills Rd",
            "address_purpose": "LOCATION",
            "city": "Golden",
            "state": "IL",
            "postal_code": "623391055",
            "country_code": "US",
            "telephone_number": "217-223-8400",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEUNG",
        "first_name": "HERMAN",
        "middle_name": "GAHING",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-13",
        "last_updated": "2026-09-02",
        "certification_date": "2026-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "125070750",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Quincy, IL

Sources for this page

Verify at the official NPI Registry.