Ioannis Konstantinidis, M.D.

Primary specialty

Surgical Oncology PhysicianTaxonomy code 2086X0206X

License

A141964 Issued in CA

Practice address

310 N San Vicente Blvd FL 3
West Hollywood, CA 90048-1810

Phone

(310) 423-9331

Fax

(310) 423-9399

NPI assigned

Jun 10, 2009

Sex

Male

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 TX, CA2 enrollments

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 2

Specialty

Surgical OncologyAlso: General Surgery

Education

Other, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Cedars-Sinai Medical Care FoundationGroup PAC ID 0941106645, 1,684 clinicians

Cedars-Sinai Medical CenterGroup PAC ID 0446169114, 788 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Huntington Hospital Hospital, Pasadena, CA, CCN 050438

Merit-based Incentive Payment System (MIPS)

Final score

85.12 of 100Reported as apm

Quality

67.48

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: ioannis.konstantinidis@txo.ikm.direct-ci.com
• Direct secure messaging: ikonstantinidis525527@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 Care Foundation

  • Specialist
  • Los Angeles, CA
  • NPI 1316984388
  Medicare reassignment Care Compare group NPD
• Cedars-Sinai Medical Center

  • General Acute Care Hospital
  • Los Angeles, CA
  • NPI 1639172372
  Medicare reassignment Care Compare group NPD
• Texas Tech University Health Sciences Center El Paso

  • Internal Medicine Physician
  • El Paso, TX
  • NPI 1598705055
  Medicare reassignment NPD
• Cedars-Sinai Medical Care Foundation

  • Anesthesiology Physician
  • Los Angeles, CA
  • NPI 1043826720
  NPD
• Cedars-Sinai Medical Center

  dba San Vicente Pharmacy

  • Pharmacy
  • Los Angeles, CA
  • NPI 1376514810
  NPD
• Texas Tech University Health Sciences Center El Paso

  • Neurological Surgery Physician
  • El Paso, TX
  • NPI 1457913444
  NPD
• Texas Tech University Health Sciences Center El Paso

  • Surgery Physician
  • El Paso, TX
  • NPI 1538240478
  NPD

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

• Pasadena Hospital Association, LTD

  dba Huntington Hospital

  • General Acute Care Hospital
  • Pasadena, CA
  • NPI 1407828429
  Care Compare affiliation

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

{
    "created_epoch": "1244592000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754524800000",
    "number": "1477789972",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4140 W 190TH ST",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905045513"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "310 N SAN VICENTE BLVD FL 3",
            "city": "WEST HOLLYWOOD",
            "state": "CA",
            "postal_code": "900481810",
            "telephone_number": "310-423-9331",
            "fax_number": "310-423-9399"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8700 Beverly Blvd",
            "address_purpose": "LOCATION",
            "city": "West Hollywood",
            "state": "CA",
            "postal_code": "900481804",
            "country_code": "US",
            "telephone_number": "310-423-9331",
            "fax_number": "310-423-9399",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "100 W California Blvd",
            "address_purpose": "LOCATION",
            "city": "Pasadena",
            "state": "CA",
            "postal_code": "911053010",
            "country_code": "US",
            "telephone_number": "626-397-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KONSTANTINIDIS",
        "first_name": "IOANNIS",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-06-10",
        "last_updated": "2025-08-07",
        "certification_date": "2025-08-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2086X0206X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Oncology",
            "state": "TX",
            "license": "R9236",
            "primary": false
        },
        {
            "code": "2086X0206X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Oncology",
            "state": "CA",
            "license": "A141964",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kaz Sun Koltai, DMD
• Pat Kolyouthapong
• Mitchell S Komaiko, MD
• Min Jeffrey Kong, MD
• Alexander Konopov, PHARMACY TECH
• Andrei V Kopylov, MD
• Nathan Koreie
• Lowell Ross Korman, M.D.
• Dhruv Shreedhar Kothari, MD
• Anna Kotlarz, MD

• Surgical Oncology Physician in West Hollywood, CA
• Providers in West Hollywood, CA by specialty
• Surgical Oncology Physician in California

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