Nikki Jose Del Castillo, DDS

Primary specialty

DentistTaxonomy code 122300000X

License

D1058 Issued in GU

Practice address

505 Harmon Loop Rd Ste 300
Dededo, GU 96929-6519

Phone

(671) 637-9696

NPI assigned

Mar 27, 2023

Last updated

May 1, 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 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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.

• C V Alegria DDS Inc

  dba Harmon Loop Dental

  • General Practice Dentistry
  • Dededo, GU
  • NPI 1659412930
  NPD (past)

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

{
    "created_epoch": "1679875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1746057600000",
    "number": "1356044309",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "113 W DAOG CT",
            "city": "DEDEDO",
            "state": "GU",
            "postal_code": "969295514",
            "telephone_number": "671-686-5866"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "505 HARMON LOOP RD STE 300",
            "city": "DEDEDO",
            "state": "GU",
            "postal_code": "969296519",
            "telephone_number": "671-637-9696"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DEL CASTILLO",
        "first_name": "NIKKI",
        "middle_name": "JOSE",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2023-03-27",
        "last_updated": "2025-05-01",
        "certification_date": "2025-05-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "HI",
            "license": "DT-3186",
            "primary": false
        },
        {
            "code": "122300000X",
            "taxonomy_group": "",
            "desc": "Dentist",
            "state": "GU",
            "license": "D1058",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Paul Dalmacio
• Robin James Dalmacio, PHARMD
• Regina Day, CCC/SLP
• Anna Karmela De Belen, APRN-NP BC
• Katie Dean
• Department of Public Health and Social Services
• Department of Public Health and Social Services
• Dept. of Public Health Pharmacy-Nrchc
• Nino Salazar Dizon, DMD
• Chris Curran Dombrowski, DO

• Dentist in Dededo, GU
• Providers in Dededo, GU by specialty
• Dentist in Guam

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 1, 2025; 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.