Melissa Ota, DDS

Primary specialty

General Practice DentistryTaxonomy code 1223G0001X

License

63289 Issued in CA

Practice address

2 Osborn St Ste 140
Irvine, CA 92604-8656

Phone

(929) 525-2522

NPI assigned

Aug 26, 2014

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

Electronic endpoints 1

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: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Dentist

Education

Other, 2014

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• City of Hope Medical Foundation

  • Hematology & Oncology Physician
  • Duarte, CA
  • NPI 1871886366
  Medicare reassignment

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

{
    "created_epoch": "1409011200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775692800000",
    "number": "1821498940",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "109 SUPERIOR",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926202225"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2 OSBORN ST STE 140",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926048656",
            "telephone_number": "929-525-2522"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1500 Duarte Rd",
            "address_purpose": "LOCATION",
            "city": "Duarte",
            "state": "CA",
            "postal_code": "910103012",
            "country_code": "US",
            "telephone_number": "800-826-4673",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1000 Fivepoint",
            "address_purpose": "LOCATION",
            "city": "Irvine",
            "state": "CA",
            "postal_code": "926182621",
            "country_code": "US",
            "telephone_number": "888-333-4673",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OTA",
        "first_name": "MELISSA",
        "credential": "DDS",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-08-26",
        "last_updated": "2026-04-09",
        "certification_date": "2026-04-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "1223G0001X",
            "taxonomy_group": "",
            "desc": "Dentist, General Practice",
            "state": "CA",
            "license": "63289",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "direct@cityofhope.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1500 Duarte Rd",
            "city": "Duarte",
            "state": "CA",
            "country_code": "US",
            "postal_code": "910103012",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Osp Health Management Inc
• Laura Ostrove
• Anna Ostrovsky, MFT
• Blair Gregory Ota, DDS, MD
• Craig Kenji Ota, D.D.S
• Tamer Adel Othman, M.D.
• Darrell G Otsu, DDS DENTIST
• Robert Leslie Otsu, DDS
• Katyn Ott
• Daniel Joseph Otterson, MD

• General Practice Dentistry in Irvine, CA
• Providers in Irvine, CA by specialty
• General Practice Dentistry in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 9, 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.