Eugenia Zweibach

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

20164 Issued in NV

Practice address

26672 Portola Pkwy Ste 112
Foothill Ranch, CA 92610-1773

Phone

(949) 557-0820

NPI assigned

Apr 8, 2017

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Endocrinology

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Hoag ClinicGroup PAC ID 3274872064, 447 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/10944/brand/3/csg/1/fhir/r4
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Hoag Clinic

  • Primary Care Clinic/Center
  • Newport Beach, CA
  • NPI 1942799523
  Medicare reassignment Care Compare group NPD
• Reliant Physicians (Kumar) PLLC

  • Internal Medicine Physician
  • Las Vegas, NV
  • NPI 1194477240
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  Care Compare affiliation

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

{
    "created_epoch": "1491609600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761696000000",
    "number": "1710410550",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26672 PORTOLA PKWY STE 112",
            "city": "FOOTHILL RANCH",
            "state": "CA",
            "postal_code": "926101773",
            "telephone_number": "949-557-0820"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "26672 PORTOLA PKWY STE 112",
            "city": "FOOTHILL RANCH",
            "state": "CA",
            "postal_code": "926101773",
            "telephone_number": "949-557-0820"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZWEIBACH",
        "first_name": "EUGENIA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-04-08",
        "last_updated": "2025-10-29",
        "certification_date": "2025-10-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NV",
            "license": "20164",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Susan C Zand, DDS, MS
• Parisa Zarbafian, D.D.S.
• Jan Carlo Zegarra, D.C.
• Ying Zhang
• Justin Zubak, MD

• Internal Medicine Physician in Foothill Ranch, CA
• Providers in Foothill Ranch, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 29, 2025; 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.