Kalena K Hwang, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A89575 Issued in CA

Practice address

2 Osborn St Ste 180
Irvine, CA 92604-8676

Phone

(949) 417-9820

Fax

(949) 417-9830

NPI assigned

May 11, 2006

Last updated

Jan 16, 2026By the provider in NPPES

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

Internal Medicine

Education

Saint Louis University School of Medicine, 2003

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Irvine Family Care Inc.Group PAC ID 7810090420, 8 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hoag Home Health Home health agency, Newport Beach, CA, CCN 557412
• Hoag Memorial Hospital Presbyterian Hospital, Newport Beach, CA, CCN 050224
• Memorialcare Saddleback Medical Center Hospital, Laguna Hills, CA, CCN 050603
• Memorialcare Orange Coast Medical Center Hospital, Fountain Valley, CA, CCN 050678

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: kalena.hwangmd.p77@direct.nautilus.nextgenshare.com

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

• Irvine Family Care, Inc

  • Multi-Specialty Clinic/Center
  • Irvine, CA
  • NPI 1942370432

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Comprehensive Care Center of Irvine, Inc

  • Multi-Specialty Clinic/Center
  • Irvine, CA
  • NPI 1598067076
  Authorized official Same address or phone
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  NPD (past)

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

• Hoag Home Health LLC

  • Home Health Agency
  • Newport Beach, CA
  • NPI 1174192892
  Care Compare affiliation
• Hoag Memorial Hospital Presbyterian

  • General Acute Care Hospital
  • Newport Beach, CA
  • NPI 1518951300
  Care Compare affiliation
• Orange Coast Memorial Medical Center

  • General Acute Care Hospital
  • Fountain Valley, CA
  • NPI 1497702575
  Care Compare affiliation
• Saddleback Memorial Medical Center

  • General Acute Care Hospital
  • Laguna Hills, CA
  • NPI 1275576381
  Care Compare affiliation

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

{
    "created_epoch": "1147305600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768521600000",
    "number": "1225088164",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1995",
            "city": "SUISUN CITY",
            "state": "CA",
            "postal_code": "945854995",
            "telephone_number": "657-241-3600",
            "fax_number": "657-241-7708"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2 OSBORN ST STE 180",
            "city": "IRVINE",
            "state": "CA",
            "postal_code": "926048676",
            "telephone_number": "949-417-9820",
            "fax_number": "949-417-9830"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HWANG",
        "first_name": "KALENA",
        "middle_name": "K",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-11",
        "last_updated": "2026-01-16",
        "certification_date": "2026-01-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A89575",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rut Huynh
• Vivian Huynh
• Huiyeong Hwang
• Jacob Hwang, ND
• Jaehoo Hwang, L.AC
• Kyu Sung Hwang, D.C.
• Michele Hee Hwang, NP
• Nahal Nichole Hydaryacil, PSYD
• Hyesun Kim, M.D., Inc.
• Steven Andrew Hyjek, DC

• Internal Medicine Physician in Irvine, CA
• Providers in Irvine, 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 Jan 16, 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.