Siena Elisa Nadal Ona, M.D.

Primary specialty

Spinal Cord Injury Medicine PhysicianTaxonomy code 2081P0004X

License

A172213 Issued in CA

Practice address

2801 Atlantic Ave
Long Beach, CA 90806-1701

Phone

(562) 933-2000

NPI assigned

Jul 1, 2013

Sex

Female

Sole proprietor

No

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

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

Physical Medicine and Rehabilitation

Education

Other, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dieumy Michelle Thai M D Inc 4 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorialcare Long Beach Medical Center Hospital, Long Beach, CA, CCN 050485
• Memoriacare Long Beach Medical Center Inpatient rehabilitation facility, Long Beach, CA, CCN 05T485

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 27)

Interoperability endpoints

• Direct secure messaging: sona861893@direct.memorialcare.org
• FHIR API: https://fhir4.healow.com/fhir/r4/GGHAED/Endpoint/GGHAED

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.

• Dieumy Michelle Thai, MD, Inc.

  • Pain Medicine (Physical Medicine & Rehabilitation) Physician
  • Westminster, CA
  • NPI 1073625232

  CA, Physical Medicine & Rehabilitation

  Medicare reassignment Care Compare group NPD
• New Vita Medical

  • Physical Medicine & Rehabilitation Physician
  • Westminster, CA
  • NPI 1639979974

  CA

  Medicare reassignment Authorized official
• American Current Care of California, a Medical Corporation

  • Clinic/Center
  • Los Angeles, CA
  • NPI 1750573622

  CA

  Medicare reassignment NPD
• Scientia Caritas Medicine

  • Multi-Specialty Clinic/Center
  • Fountain Valley, CA
  • NPI 1588231187

  CA

  Medicare reassignment NPD
• American Current Care of California, a Medical Corporation

  • Urgent Care Clinic/Center
  • Ontario, CA
  • NPI 1811464084
  NPD
• American Current Care of California, a Medical Corporation

  • Urgent Care Clinic/Center
  • Bakersfield, CA
  • NPI 1952877516
  NPD

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

• Long Beach Memorial Medical

  • Rehabilitation Hospital Unit
  • Long Beach, CA
  • NPI 1396791414

  Inpatient rehabilitation facility

  Care Compare affiliation
• Long Beach Memorial Medical

  • General Acute Care Hospital
  • Long Beach, CA
  • NPI 1962442012

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1372636800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779321600000",
    "number": "1174963458",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7131 YORKTOWN AVE # 1016",
            "city": "HUNTINGTON BEACH",
            "state": "CA",
            "postal_code": "926482464"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2801 ATLANTIC AVE",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908061701",
            "telephone_number": "562-933-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "408 Lincoln Dr",
            "address_purpose": "LOCATION",
            "city": "Herrin",
            "state": "IL",
            "postal_code": "62948",
            "country_code": "US",
            "telephone_number": "618-351-4980",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2100 Stantonsburg Rd",
            "address_purpose": "LOCATION",
            "city": "Greenville",
            "state": "NC",
            "postal_code": "278342818",
            "country_code": "US",
            "telephone_number": "252-847-7907",
            "fax_number": "252-847-0840",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1250 E. Marshall Street",
            "address_2": "PO Box 98677",
            "address_purpose": "LOCATION",
            "city": "Richmond",
            "state": "VA",
            "postal_code": "232980677",
            "country_code": "US",
            "telephone_number": "804-828-8693",
            "fax_number": "804-828-0951",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ONA",
        "first_name": "SIENA ELISA",
        "middle_name": "NADAL",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-07-01",
        "last_updated": "2026-05-21",
        "certification_date": "2026-05-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2081P0004X",
            "taxonomy_group": "",
            "desc": "Physical Medicine & Rehabilitation, Spinal Cord Injury Medicine",
            "state": "CA",
            "license": "A172213",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "208100000X",
            "taxonomy_group": "",
            "desc": "Physical Medicine & Rehabilitation",
            "state": "IL",
            "license": "036-145373",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• All providers in Long Beach, CA
• Spinal Cord Injury Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 21, 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.