Diem-Quynh Phuong Nguyen, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

E-14544 Issued in AR

Practice address

4620 Towson Ave
Fort Smith, AR 72901-7961

Phone

(479) 573-3082

Fax

(479) 573-3100

NPI assigned

Apr 11, 2018

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Dr. Diem Quynh Phuong Nguyen Other name

Medicare fee-for-service enrollment

Enrolled in AR

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Other, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sebastian Physician Services, PLLCGroup PAC ID 5294178448, 41 clinicians

Mercy Clinic Fort Smith CommunitiesGroup PAC ID 3870668510, 361 clinicians

Springdale Bentonville HBP Services LLCGroup PAC ID 1052759263, 88 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Baptist Health - Fort Smith Hospital, Fort Smith, AR, CCN 040055
• Mercy Hospital Fort Smith Hospital, Fort Smith, AR, CCN 040062

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Mercy Clinic Fort Smith Communities

  • Multi-Specialty Clinic/Center
  • Fort Smith, AR
  • NPI 1902073620

  AR

  Medicare reassignment Care Compare group NPD
• Sebastian Physician Services, PLLC

  • Hospitalist Physician
  • Fort Smith, AR
  • NPI 1255110110

  AR

  Medicare reassignment Care Compare group NPD
• Springdale- Bentonville HBP Services, LLC

  • Neonatal-Perinatal Medicine Physician
  • Bentonville, AR
  • NPI 1811762701

  AR

  Medicare reassignment Care Compare group NPD
• Arkansas Emergency Staffing Solutions, Inc

  • Emergency Medicine Physician
  • Hope, AR
  • NPI 1275774630

  AR

  Medicare reassignment NPD
• Arkansas Post Discharge Services, PLLC

  • Hospitalist Physician
  • Fort Smith, AR
  • NPI 1851152029

  AR

  Medicare reassignment NPD
• Crawford Physician Services, PLLC

  • Hospitalist Physician
  • Van Buren, AR
  • NPI 1346029204

  AR

  Medicare reassignment NPD
• Mercy Hospital Booneville

  • Certified Registered Nurse Anesthetist
  • Booneville, AR
  • NPI 1083004733

  AR

  Medicare reassignment NPD
• Mercy Hospital Booneville

  • Critical Access Hospital
  • Booneville, AR
  • NPI 1992133714

  AR

  Medicare reassignment NPD
• Mercy Hospital Ozark

  • Critical Access Hospital
  • Ozark, AR
  • NPI 1275504128

  AR

  Medicare reassignment NPD
• Mercy Hospital Ozark

  • Emergency Care Clinic/Center
  • Ozark, AR
  • NPI 1881642767

  AR

  Medicare reassignment NPD
• Mercy Hospital Paris

  • Emergency Care Clinic/Center
  • Paris, AR
  • NPI 1518915321

  AR

  Medicare reassignment NPD
• Mercy Hospital Paris

  • Critical Access Hospital
  • Paris, AR
  • NPI 1760453633

  AR

  Medicare reassignment NPD

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

• Baptist Health Regional Hospitals

  • General Acute Care Hospital
  • Fort Smith, AR
  • NPI 1710463146

  Hospital

  Care Compare affiliation
• Mercy Hospital Fort Smith

  • General Acute Care Hospital
  • Fort Smith, AR
  • NPI 1568433480

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1523404800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754524800000",
    "number": "1689171019",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 776084",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606776084",
            "telephone_number": "479-573-3082",
            "fax_number": "479-573-3100"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4620 TOWSON AVE",
            "city": "FORT SMITH",
            "state": "AR",
            "postal_code": "729017961",
            "telephone_number": "479-573-3082",
            "fax_number": "479-573-3100"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 N Pepper Ave",
            "address_purpose": "LOCATION",
            "city": "Colton",
            "state": "CA",
            "postal_code": "923241819",
            "country_code": "US",
            "telephone_number": "407-968-9706",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "612 S 12th St",
            "address_purpose": "LOCATION",
            "city": "Fort Smith",
            "state": "AR",
            "postal_code": "729014702",
            "country_code": "US",
            "telephone_number": "479-785-2431",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "DIEM-QUYNH",
        "middle_name": "PHUONG",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-04-11",
        "last_updated": "2025-08-07",
        "certification_date": "2025-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "AR",
            "license": "E-14544",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DIEM QUYNH",
            "last_name": "NGUYEN",
            "middle_name": "PHUONG",
            "prefix": "DR.",
            "credential": "MD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Hailey Jordan Newton, APRN
• Lisa S Newton, MD
• Richard Colin Newton
• Cynthia Kemayou Ngonga, PHARM D
• Ai-Chau Hang Nguyen
• Eric Nguyen, MD
• Lam Truc Nguyen, DC, PHD, CCHT, LRT
• Lan Ngoc Nguyen, FNP/APRN
• Linh Ngoc Nguyen
• Mary Xuan Thuy Nguyen, PHARMACIST

• All providers in Fort Smith, AR
• Family Medicine Physician in Arkansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 7, 2025; 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.

Verify at the official NPI Registry.