Ara Ko, M.D., M.P.H.

Primary specialty

Surgical Critical Care PhysicianTaxonomy code 2086S0102X

License

A139859 Issued in CA

Practice address

8635 W 3Rd St Ste 770W
Los Angeles, CA 90048-6101

Phone

(310) 423-8350

Fax

(310) 423-8351

NPI assigned

Jan 18, 2016

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

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

General Surgery

Education

Tufts University School of Medicine, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cedars-Sinai Medical CenterGroup PAC ID 0446169114, 788 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cedars-Sinai Medical Center Hospital, Los Angeles, CA, CCN 050625
• Cedar-Sinai Marina del Rey Hospital Hospital, Marina del Rey, CA, CCN 050740

Merit-based Incentive Payment System (MIPS)

Final score

93.23 of 100Reported as group

Quality

77.83

Promoting interoperability

98

Improvement activities

40

Cost

71.17

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ako183014@direct.cshs.org

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.

• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1639172372
  Medicare reassignment Care Compare group NPD
• Cedars-Sinai Medical Center

  • Pharmacy
  • Los Angeles, CA
  • NPI 1376514810
  NPD
• Lucile Salter Packard Children'S Hospital at Stanford

  • Children's Hospital
  • Palo Alto, CA
  • NPI 1467442749
  NPD (past)
• Stanford Hospital and Clinics

  • Clinical Medical Laboratory
  • Palo Alto, CA
  • NPI 1174698468
  NPD (past)

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

• Cedars-Sinai Marina Hospital

  • General Acute Care Hospital
  • Marina del Rey, CA
  • NPI 1942269725
  Care Compare affiliation
• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1639172372
  Care Compare affiliation
• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • West Hollywood, CA
  • NPI 1891940326
  Care Compare affiliation

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

{
    "created_epoch": "1453075200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762473600000",
    "number": "1982061230",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 PASTEUR DR # H3680",
            "city": "STANFORD",
            "state": "CA",
            "postal_code": "943052200",
            "telephone_number": "650-725-1097"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8635 W 3RD ST STE 770W",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900486101",
            "telephone_number": "310-423-8350",
            "fax_number": "310-423-8351"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "300 Pasteur Dr # H3680",
            "address_purpose": "LOCATION",
            "city": "Stanford",
            "state": "CA",
            "postal_code": "943052200",
            "country_code": "US",
            "telephone_number": "650-725-1097",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8700 Beverly Blvd",
            "address_2": "Suite 8215 NT",
            "address_purpose": "LOCATION",
            "city": "West Hollywood",
            "state": "CA",
            "postal_code": "900481804",
            "country_code": "US",
            "telephone_number": "310-423-6444",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KO",
        "first_name": "ARA",
        "credential": "M.D., M.P.H.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-01-18",
        "last_updated": "2025-11-07",
        "certification_date": "2025-11-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "CA",
            "license": "A139859",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "CA",
            "license": "A139859",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennifer R Knutson, NP
• Yuri Ko Villalvazo
• Ahra C Ko
• Albert H Ko
• Ara Ko
• Avis Ko, DO
• Barbara J Ko, PHARM B.S.,P.D.
• Bona Ko
• Catherine Jeanette Ko
• Clifford Y. Ko, MD

• Surgical Critical Care Physician in Los Angeles, CA
• Providers in Los Angeles, CA by specialty
• Surgical Critical Care Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 7, 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.