Alyssa Nguyen-Phuoc, M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

291462 Issued in NY

Practice address

101 The City Dr S
Orange, CA 92868-3201

Phone

(714) 456-7890

Fax

(714) 456-3508

NPI assigned

Apr 3, 2015

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

Medicare fee-for-service enrollment

Enrolled in NY, CA2 enrollments

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 2

Specialty

Emergency Medicine

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Regents of the University ofGroup PAC ID 7517869605, 126 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Uci Health-Orange Hospital, Orange, CA, CCN 050348

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Networks

• Healthfirst Medicare Network H3359
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H5989

Interoperability endpoints

• Direct secure messaging: alyssanguyen-phuoc@mai.allscriptsdirect.net

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.

• Regents of the University of

  dba Emergency Medicine Faculty Group

  • Emergency Medicine Physician
  • Orange, CA
  • NPI 1154379394
  Medicare reassignment Care Compare group NPD
• Maimonides Medical Center - MMC Emergency Physicians FPP

  • Emergency Medicine Physician
  • Brooklyn, NY
  • NPI 1982708202
  Medicare reassignment NPD
• Maimonides Medical Center

  • General Acute Care Hospital
  • Brooklyn, NY
  • NPI 1093777492
  NPD
• University of California Irvine

  dba UCI Infusion Center

  • Infusion Therapy Clinic/Center
  • Irvine, CA
  • NPI 1417027475
  NPD (past)

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

• University of California Irvine

  dba University of California Irvine - Cac Urgent Care

  • Urgent Care Clinic/Center
  • Irvine, CA
  • NPI 1518739309

  Hospital

  Care Compare affiliation
• University of California Irvine

  dba Uci Health

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1689608150
  Care Compare affiliation

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

{
    "created_epoch": "1428019200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754265600000",
    "number": "1558756734",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4802 10TH AVE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112192916"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "101 THE CITY DR S",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928683201",
            "telephone_number": "714-456-7890",
            "fax_number": "714-456-3508"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1000 10th Ave",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100191147",
            "country_code": "US",
            "telephone_number": "212-523-4000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4802 10th Ave",
            "address_purpose": "LOCATION",
            "city": "Brooklyn",
            "state": "NY",
            "postal_code": "11219",
            "country_code": "US",
            "telephone_number": "718-283-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN-PHUOC",
        "first_name": "ALYSSA",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-04-03",
        "last_updated": "2025-08-04",
        "certification_date": "2025-08-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "NY",
            "license": "291462",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Nguyen & Phung DMD Inc (Healthy Smile Dentistry 2)
• Christine Giac Tien Nguyen Dawson, MD
• Van Nguyen Greco, M.D.
• Ann Binhan Nguyen Pham, MD
• Steven Nguyen-Ho, PA-C
• Hanh-Uyen Nguyen-Tang, M.D.
• Aaron Hau Nguyen
• Aibys Nguyen
• Ailene Thuy Nguyen, MD
• Ailynn Bac Nguyen, PHARM.D.

• Emergency Medicine Physician in Orange, CA
• Providers in Orange, CA by specialty
• Emergency Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 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.