Individual provider Active NPI

Stephen Liu, MD

  • Medical Oncology Physician
  • Los Angeles, CA
National Provider Identifier
1184788432
Registry record updated Apr 23, 2012
On this page

Key facts

NPPES NPI Registry
Primary specialty
Medical Oncology PhysicianTaxonomy code 207RX0202X
License
A102491 Issued in CA
Practice address
1441 Eastlake Ave
Nor 8302E
Los Angeles, CA 90089-0112
Phone
(323) 865-3105
NPI assigned
Dec 21, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 23, 2012

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Medical Oncology Physician 207RX0202X A102491 CA Primary
Internal Medicine Physician 207R00000X MT186453 PA
Internal Medicine Physician 207R00000X A102491 CA

Addresses

Primary practice location

1441 Eastlake Ave
Nor 8302E
Los Angeles, CA 90089-0112

Mailing address

PO Box 31309
Los Angeles, CA 90031-0309
Phone (323) 865-3105

Other identifiers 3

IdentifierTypeStateIssuer
W18762OtherCAGROUP MEDICARE
GR0100430OtherCAGROUP MEDICAL
1902846306OtherCAGROUP NPI

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in DC
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

Enrollment IDStateProvider typePAC IDDetails
I20130905000559 DC Practitioner - Hematology/OncologyPractitioner - Internal Medicine 5193995355 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/OncologyAlso: Internal Medicine
Education
University of Maryland School of Medicine, 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

Practice addresses (Care Compare)

3800 Reservoir Rd NW
Washington, DC 20007-2113
Phone (202) 444-2000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
82.97 of 100Reported as group
Quality
72.87
Promoting interoperability
100
Improvement activities
40
Cost
67.82

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MT186453PAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
MGMC, LLC CurrentSince Aug 1, 2013 Accepting new patients
Medstar Medical Group II LLC CurrentSince May 1, 2025 Accepting new patients
Medstar Medical Group II LLC Internal Medicine CurrentSince May 1, 2025 Accepting new patients
Medstar Medical Group II LLC CurrentSince Aug 1, 2013 Accepting new patients
Medstar Medical Group II LLC Internal Medicine Past Accepting new patients
Frederick Health Hospital Inc Past Accepting new patients

Locations

1145 19th St NW
Ste 311
Washington, DC 20036
Phone (202) 429-2401

110 Irving St NW
#C2149
Washington, DC 20010
Phone (202) 877-3901

3800 Reservoir Rd NW
Fl 6
Washington, DC 20007
Phone (202) 687-8188

3800 Reservoir Rd NW
Washington, DC 20007
Phone (202) 687-2203

Interoperability endpoints

  • Direct secure messaging: sliu@medstar.direct.varian.com

Organizations & group practices 6

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 4

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": "1166659200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1335139200000",
    "number": "1184788432",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 31309",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900310309",
            "telephone_number": "323-865-3105"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1441 EASTLAKE AVE",
            "address_2": "NOR 8302E",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900890112",
            "telephone_number": "323-865-3105"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIU",
        "first_name": "STEPHEN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-21",
        "last_updated": "2012-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "CA",
            "license": "A102491",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PA",
            "license": "MT186453",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A102491",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP MEDICARE",
            "identifier": "W18762",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP MEDICAL",
            "identifier": "GR0100430",
            "state": "CA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "GROUP NPI",
            "identifier": "1902846306",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

Verify at the official NPI Registry.