Diana Nguyen, NP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

95018050 Issued in CA

Practice address

1150 Baker St
Costa Mesa, CA 92626-4111

Phone

(714) 662-7517

NPI assigned

Aug 20, 2021

Last updated

Oct 20, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Merit-based Incentive Payment System (MIPS)

Final score

75.98 of 100Reported as group

Quality

66.36

Improvement activities

40

Cost

81.59

Merit-based Incentive Payment System (MIPS)

Final score

76.8 of 100Reported as group

Quality

65.04

Improvement activities

40

Cost

86.74

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

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.

• Peak Wellness Psychiatry, a Professional Nursing Corporation

  • Psychiatric/Mental Health Nurse Practitioner
  • San Diego, CA
  • NPI 1376184168
  NPD (past)

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

{
    "created_epoch": "1629417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760918400000",
    "number": "1841966777",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1150 BAKER ST",
            "city": "COSTA MESA",
            "state": "CA",
            "postal_code": "926264111",
            "telephone_number": "866-389-2727"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1150 BAKER ST",
            "city": "COSTA MESA",
            "state": "CA",
            "postal_code": "926264111",
            "telephone_number": "714-662-7517"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "DIANA",
        "credential": "NP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2021-08-20",
        "last_updated": "2025-10-20",
        "certification_date": "2025-10-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "CA",
            "license": "95018050",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "CA",
            "license": "NP95018050",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christina Thy Linh Nguyen, LAC
• Chrystene A. Nguyen, M.D.
• Danielle Nguyen
• Daphne Hoang Nguyen
• David Huong Nguyen, MD
• Diane Nguyen
• Dien Son Nguyen, NONE
• Drew Anh Nguyen, BCBA
• Elizabeth Nguyen
• Gina-Nga T Nguyen, M.D.

• Psychiatric/Mental Health Nurse Practitioner in Costa Mesa, CA
• Providers in Costa Mesa, CA by specialty
• Psychiatric/Mental Health Nurse Practitioner in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• 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.