Alexander Dung Nguyen, MD

Primary specialty

Pain Medicine (Anesthesiology) PhysicianTaxonomy code 207LP2900X

License

A200299 Issued in CA

Practice address

26800 Crown Valley Pkwy Ste 310
Mission Viejo, CA 92691-8020

Phone

(714) 937-2155

Fax

(714) 634-4321

NPI assigned

Apr 27, 2021

Last updated

Oct 20, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in CA

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

Anesthesiology

Education

University of Colorado School of Medicine, Aurora, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of California San FranciscoGroup PAC ID 4486567229, 1,780 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• UCSF Medical Center Hospital, San Francisco, CA, CCN 050454

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• University of California San Francisco

  dba UCSF Pediatrics Group

  • Pediatrics Physician
  • San Francisco, CA
  • NPI 1861578973
  Medicare reassignment Care Compare group NPD
• UCSF Medical Group Business Services

  • Internal Medicine Physician
  • San Francisco, CA
  • NPI 1477624104
  Medicare reassignment NPD
• University Anesthesia Medical Group

  • Anesthesiology Physician
  • San Francisco, CA
  • NPI 1528137296
  Medicare reassignment NPD
• Orthopaedic Specialty Institute Medical Group of Orange County

  • Orthopaedic Surgery Physician
  • Orange, CA
  • NPI 1336228832
  NPD
• UCSF Medical Group Business Services

  dba UCSF Orthotic and Prosthetic Center - Gateway Medical Building

  • Health Service Clinic/Center
  • San Francisco, CA
  • NPI 1194115246
  NPD
• University of California San Francisco

  dba UCSF Surgical Group

  • Surgery Physician
  • San Francisco, CA
  • NPI 1346329380
  NPD
• University of California San Francisco

  dba UCSF Outpatient Pharmacy at Parnassus

  • Community/Retail Pharmacy
  • San Francisco, CA
  • NPI 1659141711
  NPD

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

• University of California, San Francisco

  dba UCSF Medical Center

  • General Acute Care Hospital
  • San Francisco, CA
  • NPI 1689772592
  Care Compare affiliation

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

{
    "created_epoch": "1619481600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792454400000",
    "number": "1639751746",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26800 CROWN VALLEY PKWY STE 310",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926918020",
            "telephone_number": "714-937-2155",
            "fax_number": "714-634-4321"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "26800 CROWN VALLEY PKWY STE 310",
            "city": "MISSION VIEJO",
            "state": "CA",
            "postal_code": "926918020",
            "telephone_number": "714-937-2155",
            "fax_number": "714-634-4321"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "513 Parnassus Ave # S436",
            "address_purpose": "LOCATION",
            "city": "San Francisco",
            "state": "CA",
            "postal_code": "941432205",
            "country_code": "US",
            "telephone_number": "415-353-1297",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Lothrop St",
            "address_purpose": "LOCATION",
            "city": "Pittsburgh",
            "state": "PA",
            "postal_code": "152132536",
            "country_code": "US",
            "telephone_number": "412-692-4947",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "13001 E 17th Pl",
            "address_purpose": "LOCATION",
            "city": "Aurora",
            "state": "CO",
            "postal_code": "800452570",
            "country_code": "US",
            "telephone_number": "303-724-1792",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "ALEXANDER",
        "middle_name": "DUNG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-04-27",
        "last_updated": "2026-10-20",
        "certification_date": "2026-10-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "CA",
            "license": "A200299",
            "primary": false
        },
        {
            "code": "207LP2900X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Pain Medicine",
            "state": "CA",
            "license": "A200299",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Newport Children Medical Group at Mission
• Newport Language and Speech Centers
• Don Chen Ngerng
• Craig Nghiem, MD
• Huy Ngo, PHARMD.
• Anh Nguyen
• Anna Nguyen, LMFT
• Cheyenne Nguyen, BS
• Christine Nguyen
• Christopher P Nguyen, MD

• Pain Medicine (Anesthesiology) Physician in Mission Viejo, CA
• Providers in Mission Viejo, CA by specialty
• Pain Medicine (Anesthesiology) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 20, 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.

Verify at the official NPI Registry.