NPIMap

Individual provider Active NPI

Alexander A Chang, M.D.

  • Internal Medicine Physician
  • San Francisco, CA
National Provider Identifier
1225356231
Registry record updated Jul 27, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A127376 Issued in CA
Practice address
909 Hyde St Ste 230
San Francisco, CA 94109-4845
Phone
(415) 779-8332
Fax
(415) 537-9078
NPI assigned
May 14, 2010
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 27, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X A127376 CA
Internal Medicine Physician 207R00000X A127376 CA Primary

Addresses

Primary practice location

909 Hyde St Ste 230
San Francisco, CA 94109-4845

Mailing address

909 Hyde St Ste 230
San Francisco, CA 94109-4845
Phone (415) 779-8332

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
I20141028001532 CA Practitioner - Internal MedicinePractitioner - Pediatric Medicine 8325269772 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Pediatric Medicine
Education
Other, 2014
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Truelight Medical CorporationGroup PAC ID 2264801281, 3 clinicians

Practice addresses (Care Compare)

909 Hyde St
Suite 125
San Francisco, CA 94109-4832
Phone (415) 771-4366

Hospital & facility affiliations

  • Alphacare Home Health Home health agency, San Bruno, CA, CCN 559279
  • Healthflex Home Health Services Home health agency, Oakland, CA, CCN 059551
  • Health Link Home Health Agency Home health agency, San Francisco, CA, CCN 059016
  • Sutter Care at Home Home health agency, San Francisco, CA, CCN 057003
  • UCSF Health Saint Francis Hospital Hospital, San Francisco, CA, CCN 050152
  • California Pacific Medical Center- Van Ness Campus Hospital, San Francisco, CA, CCN 050047
  • UCSF Health St. Mary'S Hospital Hospital, San Francisco, CA, CCN 050457
  • UCSF Medical Center Hospital, San Francisco, CA, CCN 050454
  • Chinese Hospital Hospital, San Francisco, CA, CCN 050407

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions1-10

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A127376CAMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Truelight Medical Corporation Internal Medicine CurrentSince Nov 4, 2022 Accepting new patients
California Pacific Medical Group, Inc. Past Accepting new patients
Sutter Bay Hospitals Past Accepting new patients

Locations

1044 Taraval St
San Francisco, CA 94116
Phone (415) 566-3808

909 Hyde St
Ste 230
San Francisco, CA 94109
Phone (415) 474-3668

909 Hyde St
Ste 125
San Francisco, CA 94109
Phone (415) 771-4366

Networks

  • BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

  • Direct secure messaging: alexander.chang@561923469017092.direct.elationemr.com
  • Direct secure messaging: achang268200@hisp.ehr.sutterhealth.org
  • Direct secure messaging: alexander.chang@5319578091524.direct.elationemr.com

Organizations & group practices 3

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 9

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": "1273795200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1690416000000",
    "number": "1225356231",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "909 HYDE ST STE 230",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094845",
            "telephone_number": "415-779-8332",
            "fax_number": "415-537-9078"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "909 HYDE ST STE 230",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094845",
            "telephone_number": "415-779-8332",
            "fax_number": "415-537-9078"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "ALEXANDER",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-05-14",
        "last_updated": "2023-07-27",
        "certification_date": "2023-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "CA",
            "license": "A127376",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A127376",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.