Individual provider Active NPI

Gyuhee Seong, MD

  • Internal Medicine Physician
  • Santa Monica, CA
National Provider Identifier
1962086835
Registry record updated Nov 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A203875 Issued in CA
Practice address
2020 Santa Monica Blvd Ste 210
Santa Monica, CA 90404-2139
Phone
(310) 562-6200
NPI assigned
May 7, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 3, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X A203875 CA Primary

Addresses

Primary practice location

2020 Santa Monica Blvd Ste 210
Santa Monica, CA 90404-2139

Mailing address

5767 W Century Blvd Ste 400
Los Angeles, CA 90045-5631
Phone (310) 301-8707

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, 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

Enrollment IDStateProvider typePAC IDDetails
I20240819001057 NY Practitioner - Internal Medicine 9638617947 Reassigns benefits to 1 organization
I20250918001426 CA Practitioner - Internal Medicine 9638617947 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Kaiser Permanente School of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

10 Union SQ E
New York, NY 10003-3314
Phone (212) 844-8100

100 Medical Plaza
Los Angeles, CA 90095-0001

100 Medical PLZ
Suite 310
Los Angeles, CA 90095-0001
Phone (310) 825-7922

1245 16TH St
Santa Monica, CA 90404-1240

200 Medical Plaza
Los Angeles, CA 90095-0001

200 Medical PLZ
Los Angeles, CA 90095-0001

200 UCLA Medical PLZ
Suite 165 34
Los Angeles, CA 90095-0001
Phone (310) 824-8403

2020 Santa Monica Blvd
Suite 210
Santa Monica, CA 90404-2139
Phone (310) 458-2381

900 Weyburn Place
Suite 14 171
Los Angeles, CA 90095-0001
Phone (310) 825-8173

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
A203875CAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Icahn School of Medicine at Mount Sinai CurrentSince Sep 1, 2024 Accepting new patients
Icahn School of Medicine at Mount Sinai CurrentSince Sep 1, 2024 Accepting new patients
The Regents of the University of California Internal Medicine CurrentSince Nov 1, 2025 Accepting new patients
The Regents of the University of California CurrentSince Nov 1, 2025 Accepting new patients

Locations

24302 Paseo de Valencia
Ste 200
Laguna Hills, CA 92653
Phone (949) 458-8252

File 55737
Los Angeles, CA 90074

5767 W Century Blvd
Ste 400
Los Angeles, CA 90045
Phone (310) 301-5200

892 Aerovista Pl
Ste 240
San Luis Obispo, CA 93401
Phone (805) 541-8252

2020 Santa Monica Blvd
Ste 210
Santa Monica, CA 90404
Phone (310) 458-2381

100 Moody Ct
Ste 200
Thousand Oaks, CA 91360
Phone (805) 418-3500

17 E 102nd St
New York, NY 10029
Phone (212) 241-7968

10 Union Sq E
New York, NY 10003
Phone (212) 253-6800

Networks

  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H5989
  • Healthfirst Medicare Network H9678

Interoperability endpoints

  • Direct secure messaging: gseong1449929@direct.uclahealth.org

Organizations & group practices 4

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.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1620345600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762128000000",
    "number": "1962086835",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5767 W CENTURY BLVD STE 400",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900455631",
            "telephone_number": "310-301-8707"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2020 SANTA MONICA BLVD STE 210",
            "city": "SANTA MONICA",
            "state": "CA",
            "postal_code": "904042139",
            "telephone_number": "310-562-6200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SEONG",
        "first_name": "GYUHEE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-05-07",
        "last_updated": "2025-11-03",
        "certification_date": "2025-11-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A203875",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Santa Monica, CA

Sources for this page

Verify at the official NPI Registry.