Charis Geraldine Tjoeng, DO

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

20878 Issued in CA

Practice address

1000 W Carson St
Torrance, CA 90502-3321

Phone

(424) 306-4000

NPI assigned

Mar 27, 2020

Last updated

Sep 22, 2025By 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

Other names 1

• Geraldine Charis Tjoeng Former name

Medicare fee-for-service enrollment

Enrolled in CA, MT, ID, NM, AZ5 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 5

Specialty

Internal Medicine

Education

Other, 2020

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

Practice roles

Locations

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.

• Martin Luther King Jr Community Medical Foundation

  dba Martin Lurher King Jr. Community Medical Group

  • Multi-Specialty Clinic/Center
  • Los Angeles, CA
  • NPI 1356899777

  Internal Medicine

  Medicare reassignment NPD
• Access Telecare, PLLC

  • Internal Medicine Physician
  • Dallas, TX
  • NPI 1013303080

  AZ, ID, MT, NM

  Medicare reassignment NPD
• Martin Luther King Jr Community Medical Foundation

  dba Martin Luther King Jr. Community Medical Group

  • Multi-Specialty Clinic/Center
  • Compton, CA
  • NPI 1306496641

  Internal Medicine

  NPD
• Martin Luther King Jr Community Medical Foundation

  • Radiology Clinic/Center
  • Los Angeles, CA
  • NPI 1346082294
  NPD

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

{
    "created_epoch": "1585267200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758499200000",
    "number": "1740818715",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 W CARSON ST",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "90502",
            "telephone_number": "424-306-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 W CARSON ST",
            "city": "TORRANCE",
            "state": "CA",
            "postal_code": "905023321",
            "telephone_number": "424-306-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TJOENG",
        "first_name": "CHARIS",
        "middle_name": "GERALDINE",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-03-27",
        "last_updated": "2025-09-22",
        "certification_date": "2025-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "20878",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "GERALDINE",
            "last_name": "TJOENG",
            "middle_name": "CHARIS",
            "credential": "DO",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Julianna Tinson-Gin, RN
• Keith Tio, OD
• Krishna Tiwari
• Caitlin Tjandra
• Roselyne Tjhai
• Alex Tlatelpa
• Dawn Marie Tlusty, RN
• Tmogi Inc (Torrance Memorial OB/GYN Intensivists)
• Alice To, PHARM.D.
• Joan Thanh To, DDS

• Internal Medicine Physician in Torrance, CA
• Providers in Torrance, 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 Sep 22, 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.