Individual provider Active NPI

Isabelle Nguyen, MD

  • Internal Medicine Physician
  • San Francisco, CA
National Provider Identifier
1154920833
Registry record updated Jun 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
A188101 Issued in CA
Practice address
900 Hyde St
San Francisco, CA 94109-4806
Phone
(415) 353-6368
Fax
(415) 353-6360
NPI assigned
Oct 22, 2020
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 4, 2026

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 A188101 CA Primary

Addresses

Primary practice location

900 Hyde St
San Francisco, CA 94109-4806

Mailing address

900 Hyde St
San Francisco, CA 94109-4806
Phone (415) 353-6368

Electronic endpoints 1

TypeEndpointUseAffiliation
CONNECT URL nonprofit Direct UCSF Medical Center

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
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.

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2023
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

227 Wicklow Dr
South San Francisco, CA 94080-1050

PO Box
Suite 5001
Lincoln, NE 68505

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
A188101CAMDInternal Medicine Physician

NPI Registry JSON

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

{
    "created_epoch": "1603324800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780531200000",
    "number": "1154920833",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "900 HYDE ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094806",
            "telephone_number": "415-353-6368",
            "fax_number": "415-353-6360"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 HYDE ST",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941094806",
            "telephone_number": "415-353-6368",
            "fax_number": "415-353-6360"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NGUYEN",
        "first_name": "ISABELLE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-10-22",
        "last_updated": "2026-06-04",
        "certification_date": "2026-06-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A188101",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "nonprofit",
            "affiliation": "Y",
            "affiliationName": "UCSF Medical Center",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "900 Hyde St",
            "city": "San Francisco",
            "state": "CA",
            "country_code": "US",
            "postal_code": "941094806",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.