Roger Kornu MD PC

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

Legal business name

ROGER KORNU MD PC

Practice address

2552 Walnut Ave Ste 200
Tustin, CA 92780-6983

Phone

(714) 406-4461

Fax

(714) 669-9790

NPI assigned

Oct 19, 2017

Organization subpart

No

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

Authorized official

Name

Roger KornuNPI 1841386349

Title

Owner

Phone

(714) 406-4461

Specialties & licenses 1

Addresses

Other names 1

• Southern California Rheumatology Doing business as

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/CFHFAA

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Roger Kornu, M.D.

  • Rheumatology Physician
  • Tustin, CA
  • NPI 1841386349
  Medicare reassignment Care Compare group NPD Authorized official
• Nancy Nicolosi, NP-C

  • Adult Health Nurse Practitioner
  • Laguna Woods, CA
  • NPI 1598122087
  Medicare reassignment Care Compare group NPD
• Elaine La, PHYSICIAN ASSISTANT

  • Physician Assistant
  • Irvine, CA
  • NPI 1396055240
  Medicare reassignment Care Compare group

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

{
    "created_epoch": "1508371200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1769731200000",
    "number": "1912418674",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2552 WALNUT AVE STE 200",
            "city": "TUSTIN",
            "state": "CA",
            "postal_code": "927806983",
            "telephone_number": "714-406-4461",
            "fax_number": "714-669-9790"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2552 WALNUT AVE STE 200",
            "city": "TUSTIN",
            "state": "CA",
            "postal_code": "927806983",
            "telephone_number": "714-406-4461",
            "fax_number": "714-669-9790"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ROGER KORNU MD PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-10-19",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A",
        "authorized_official_last_name": "KORNU",
        "authorized_official_first_name": "ROGER",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "714-406-4461"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Rheumatology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Southern California Rheumatology",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Ismael Rodriguez
• Jocelyne Rodriguez
• Kessia Patricia Rodriguez
• Manuel Eduardo Rodriguez
• Monica Rodriguez
• Amanda Lynn Rogers
• Vickie Lynn Rogers
• Shiva Roghani, DDS
• Kyle Rogoff
• Steven S Roman, PSY.D., MFT

• Rheumatology Physician in Tustin, CA
• Providers in Tustin, CA by specialty
• Rheumatology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 30, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.