NPIMap

Individual provider Active NPI

Louis K Chang, M.D., PH.D.

  • Ophthalmology Physician
  • Los Angeles, CA
National Provider Identifier
1538295720
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Ophthalmology PhysicianTaxonomy code 207W00000X
License
A91494 Issued in CA
Practice address
100 Stein PLZ
Los Angeles, CA 90095-7065
Phone
(310) 473-8878
NPI assigned
Feb 24, 2007
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Ophthalmology Physician 207W00000X A91494 CA Primary

Addresses

Primary practice location

100 Stein PLZ
Los Angeles, CA 90095-7065

Mailing address

1655 Greenfield Ave
#23
Los Angeles, CA 90025-3549
Phone (310) 473-8878

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20130801000778 CA Practitioner - Ophthalmology 8921152976 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Ophthalmology
Education
University of Washington School of Medicine, 2003
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

200 Jose Figueres Ave
Suite 415
San Jose, CA 95116-1596
Phone (408) 251-3500

2495 Hospital Dr
Suite 545
Mountain View, CA 94040-4186
Phone (650) 963-3469

66 Bovet Rd
Suite 225
San Mateo, CA 94402-3145
Phone (650) 340-0111

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Quality
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Cataract surgery1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
HHS exclusion list flag
CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine, Doctor of Philosophy

Practice roles

OrganizationSpecialtyStatusNew patients
Sutter Bay Hospitals Past Accepting new patients
Good Samaritan Hospital, L.P. Past Accepting new patients
El Camino Health Medical Network, LLC Past Accepting new patients
Good Samaritan Hospital Ca LTD PTP Past Accepting new patients
Palo Alto Medical Foundation Past Accepting new patients
Sutter East Bay Medical Foundation Past Accepting new patients
El Camino Hospital Past Accepting new patients

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: lchang@ncrva.intellechartdirect.net
  • Direct secure messaging: lchang177978@hisp.ehr.sutterhealth.org

Organizations & group practices 8

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 3

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": "1172275200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1538295720",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1655 GREENFIELD AVE",
            "address_2": "#23",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900253549",
            "telephone_number": "310-473-8878"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 STEIN PLZ",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900957065",
            "telephone_number": "310-473-8878"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "LOUIS",
        "middle_name": "K",
        "name_prefix": "Dr.",
        "credential": "M.D., PH.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-02-24",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "CA",
            "license": "A91494",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Los Angeles, CA

Sources for this page

Verify at the official NPI Registry.