Active NPI
Khiem Nguyen, MD
- Gastroenterology Physician
- Du Bois, PA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- ME101782
- Practice address
- 621 S Main St
Du Bois, PA 15801-1413 - Phone
- (814) 371-0600
- Fax
- (814) 372-4764
- NPI assigned
- Dec 9, 2005
- Last updated
- Jan 14, 2026
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | ME101782 | FL | Primary |
| Gastroenterology Physician | 207RG0100X | MD068281L | PA |
Addresses
Primary practice location
621 S Main St
Du Bois, PA 15801-1413
Mailing address
Cell and Virus Building
Suite 530
Buffalo, NY 14263-0001
Phone (716) 845-3510
Other practice location 1
Elm and Carlton St
Buffalo, NY 14263-0001
Phone (716) 845-2300
Other practice location 2
720 W Mahoning St Ste 300
Punxsutawney, PA 15767-1351
Phone (724) 357-8087
Other practice location 3
25 Colony Blvd
Blairsville, PA 15717-7971
Phone (724) 459-1790
Other practice location 4
841 Hospital Rd Ste 3200
Indiana, PA 15701-3635
Phone (724) 463-1414
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 000347800 | Medicaid | FL |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PA, NY, GA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
Care Compare profile
Medicare Care Compare- Specialty
- Gastroenterology
- Education
- Eclectic Medical College, 1996
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
841 Hospital Rd
Suite 3200
Indiana, PA 15701-3620
Phone (724) 463-1414
Elm and Carlton St
Buffalo, NY 14263-0001
Phone (716) 845-2300
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 96.6 of 100
- Promoting interoperability
- 96
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 91.71 of 100
- Quality
- 85.42
- Improvement activities
- 40
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 21 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 63 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| FLH Medical, PC | Gastroenterology | Current | Accepting new patients |
| FLH Medical, PC | Current | Accepting new patients | |
| Dubois Regional Medical Center | Current | Accepting new patients | |
| Cooperative Healthcare Services Inc | Gastroenterology | Current | Accepting new patients |
| Indiana Healthcare Physician Services Inc | Current | Accepting new patients | |
| Roswell Park Cancer Institute | Current | Accepting new patients | |
| Irmc Urgicare at Indiana | Current | Accepting new patients | |
| Dubois Regional Medical Center | Gastroenterology | Current | Accepting new patients |
| Roswell Park Cancer Institute | Current | Accepting new patients | |
| Floyd County Memorial Hospital Commission | Past | Accepting new patients |
Locations
2415 Parkwood Dr
Brunswick, GA 31520
Phone (912) 466-4079
2500 Starling St
Ste 506
Brunswick, GA 31520
Phone (912) 264-9670
8000 Box
Buffalo, NY 14267
Phone (716) 213-0772
Dept 8000
Buffalo, NY 14267
Elm and Carlton St
Buffalo, NY 14263
141 Central Ave
Keuka Park, NY 14478
Phone (315) 279-5000
28 Cayuga St
Seneca Falls, NY 13148
Phone (315) 568-4415
25 Colony Blvd
Blairsville, PA 15717
Phone (724) 388-3814
100 Hospital Ave
Dubois, PA 15801
Phone (814) 375-2040
621 S Main St
Dubois, PA 15801
Phone (814) 299-7520
640 Kolter Dr
Indiana, PA 15701
Phone (724) 357-7196
841 Hospital Rd
Ste 3200
Indiana, PA 15701
Phone (724) 463-1414
879 Hospital Rd
Indiana, PA 15701
Phone (724) 349-3031
720 W Mahoning St
Ste 300
Punxsutawney, PA 15767
Phone (724) 357-8087
Interoperability endpoints
- k.nguyen@flhmedical.medentdirect.com
- knguyen26540@direct.xtensys.com
Organizations & group practices 10
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.
-
dba IRMC Physician Group
- Internal Medicine Physician
- Indiana, PA
- NPI 1578523429
-
- Multi-Specialty Clinic/Center
- Buffalo, NY
- NPI 1720036593
-
dba Penn Highlands Gastroenterology
- Gastroenterology Physician
- Du Bois, PA
- NPI 1801994652
-
dba Southeast Georgia Physician Associates
- Clinic/Center
- Brunswick, GA
- NPI 1417979402
Gastroenterology
-
- Family Medicine Physician
- Penn Yan, NY
- NPI 1215174644
-
- Urgent Care Clinic/Center
- Indiana, PA
- NPI 1770301822
-
- Gastroenterology Physician
- Geneva, NY
- NPI 1164766325
-
- Pharmacy
- Williamsville, NY
- NPI 1871379586
-
- Critical Access Hospital
- Charles City, IA
- NPI 1265402390
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- Rural Acute Care Hospital
- Indiana, PA
- NPI 1356334510
-
- Rural Acute Care Hospital
- Indiana, PA
- NPI 1508047630
-
- Rural Acute Care Hospital
- Indiana, PA
- NPI 1659315372
-
- General Acute Care Hospital
- Buffalo, NY
- NPI 1548315401
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1134086400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1768348800000",
"number": "1316922511",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "CELL AND VIRUS BUILDING",
"address_2": "SUITE 530",
"city": "BUFFALO",
"state": "NY",
"postal_code": "142630001",
"telephone_number": "716-845-3510"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "621 S MAIN ST",
"city": "DU BOIS",
"state": "PA",
"postal_code": "158011413",
"telephone_number": "814-371-0600",
"fax_number": "814-372-4764"
}
],
"practiceLocations": [
{
"address_1": "Elm and Carlton St",
"address_purpose": "LOCATION",
"city": "Buffalo",
"state": "NY",
"postal_code": "142630001",
"country_code": "US",
"telephone_number": "716-845-2300",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "720 W Mahoning St Ste 300",
"address_purpose": "LOCATION",
"city": "Punxsutawney",
"state": "PA",
"postal_code": "157671351",
"country_code": "US",
"telephone_number": "724-357-8087",
"fax_number": "814-246-5247",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "25 Colony Blvd",
"address_purpose": "LOCATION",
"city": "Blairsville",
"state": "PA",
"postal_code": "157177971",
"country_code": "US",
"telephone_number": "724-459-1790",
"fax_number": "724-723-8090",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "841 Hospital Rd Ste 3200",
"address_purpose": "LOCATION",
"city": "Indiana",
"state": "PA",
"postal_code": "157013635",
"country_code": "US",
"telephone_number": "724-463-1414",
"fax_number": "724-463-1541",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "NGUYEN",
"first_name": "KHIEM",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2005-12-09",
"last_updated": "2026-01-14",
"certification_date": "2026-01-14",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "FL",
"license": "ME101782",
"primary": true
},
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "PA",
"license": "MD068281L",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "000347800",
"state": "FL"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Du Bois, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.