Diana M Girnita MD PC

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

Legal business name

DIANA M GIRNITA MD PC

Practice address

614 Cultivate
Irvine, CA 92618-1357

Phone

(650) 525-4404

Fax

(650) 263-7265

NPI assigned

May 16, 2021

Organization subpart

No

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

Authorized official

Name

Diana M Girnita, MDNPI 1922378116

Title

Founder, Ceo

Phone

(513) 917-9090

Specialties & licenses 1

Addresses

Other names 1

• Rheumatologist OnCall Doing business as

Practitioners 1

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

• Diana M Girnita, MD, PHD

  • Rheumatology Physician
  • Irvine, CA
  • NPI 1922378116
  NPD Authorized official

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

{
    "created_epoch": "1621123200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1768521600000",
    "number": "1154995017",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "614 CULTIVATE",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926181357",
            "telephone_number": "650-525-4404",
            "fax_number": "650-582-2895"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "614 CULTIVATE",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926181357",
            "telephone_number": "650-525-4404",
            "fax_number": "650-263-7265"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "DIANA M GIRNITA MD PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2021-05-16",
        "last_updated": "2026-01-16",
        "certification_date": "2026-01-16",
        "status": "A",
        "authorized_official_last_name": "GIRNITA",
        "authorized_official_first_name": "DIANA",
        "authorized_official_middle_name": "M",
        "authorized_official_title_or_position": "FOUNDER, CEO",
        "authorized_official_telephone_number": "513-917-9090",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Rheumatology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Rheumatologist OnCall",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

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• Rheumatology Physician in Irvine, CA
• Providers in Irvine, 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 16, 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.