NPIMap

Individual provider Active NPI

Long Huynh-Duc, D.O.

  • Rheumatology Physician
  • Greenville, SC
National Provider Identifier
1447572169
Registry record updated Jul 31, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Rheumatology PhysicianTaxonomy code 207RR0500X
License
37758 Issued in SC
Practice address
50 International Dr Ste 325
Greenville, SC 29615-4808
Phone
(864) 235-8396
Fax
(864) 271-4092
NPI assigned
Feb 22, 2010
Sex
Male
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
Rheumatology Physician 207RR0500X 37758 SC Primary

Addresses

Primary practice location

50 International Dr Ste 325
Greenville, SC 29615-4808

Mailing address

50 International Dr Ste 325
Greenville, SC 29615-4808
Phone (864) 235-8396

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in SC
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
I20160202000708 SC Practitioner - Rheumatology 8426294661 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Rheumatology
Education
Other, 2010
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Piedmont Arthritis Clinic PAGroup PAC ID 7719887223, 8 clinicians

Practice addresses (Care Compare)

3 Saint Francis Dr
Suite 400
Greenville, SC 29601-3973
Phone (864) 235-8396

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
75 of 100Reported as group

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
37758SCMDRheumatology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Piedmont Arthritis Clinic PA Rheumatology CurrentSince Jan 18, 2016 Accepting new patients

Locations

3 Saint Francis Dr
Ste 400
Greenville, SC 29601
Phone (864) 235-8396

Interoperability endpoints

  • Direct secure messaging: long.huynhduc@pac.eclinicaldirectplus.com
  • FHIR API: https://fhir4.healow.com/fhir/r4/EICJAA

Organizations & group practices 1

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 53

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

View all 53

NPI Registry JSON

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

{
    "created_epoch": "1266796800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785456000000",
    "number": "1447572169",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "50 INTERNATIONAL DR STE 325",
            "city": "GREENVILLE",
            "state": "SC",
            "postal_code": "296154808",
            "telephone_number": "864-235-8396",
            "fax_number": "864-271-4092"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "50 INTERNATIONAL DR STE 325",
            "city": "GREENVILLE",
            "state": "SC",
            "postal_code": "296154808",
            "telephone_number": "864-235-8396",
            "fax_number": "864-271-4092"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HUYNH-DUC",
        "first_name": "LONG",
        "name_prefix": "Mr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2010-02-22",
        "last_updated": "2026-07-31",
        "certification_date": "2026-07-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "SC",
            "license": "37758",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Greenville, SC

Sources for this page

Verify at the official NPI Registry.