Helena May Nguyen

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

A190592 Issued in CA

Practice address

2501 E Chapman Ave Ste 400
Orange, CA 92869-3204

Phone

(714) 835-8715

NPI assigned

Apr 11, 2022

Sex

Female

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Interoperability endpoints

• Direct secure messaging: hnguyen213983@cityofhope.direct-ci.com

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

{
    "created_epoch": "1649635200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1124760079",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2501 E CHAPMAN AVE STE 400",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928693204"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2501 E CHAPMAN AVE STE 400",
            "city": "ORANGE",
            "state": "CA",
            "postal_code": "928693204",
            "telephone_number": "714-835-8715"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "363 S Main St Ste 345",
            "address_purpose": "LOCATION",
            "city": "Orange",
            "state": "CA",
            "postal_code": "928683858",
            "country_code": "US",
            "telephone_number": "714-835-8715",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "HELENA",
        "middle_name": "MAY",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-04-11",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Obstetrics & Gynecology",
            "state": "CA",
            "license": "A190592",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hang Thi My Nguyen
• Hannah Nguyen, MD
• Harold Hoang Nguyen
• Harry Nguyen, D.O.
• Helen Nguyen
• Hieu Vincent Truong Nguyen
• Hoa Nguyen
• Hoang Nguyen
• Hoang Anh Ngoc Nguyen, M.D.
• Hoang Dao Nguyen, M.D.

• Obstetrics & Gynecology Physician in Orange, CA
• Providers in Orange, CA by specialty
• Obstetrics & Gynecology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.