Individual provider Active NPI

Charles S. Landefeld, M.D.

  • Internal Medicine Physician
  • San Francisco, CA
National Provider Identifier
1962440941
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
G43841 Issued in CA
Practice address
2501 Ocean Ave
San Francisco, CA 94143-0001
Phone
(415) 750-6625
Fax
(415) 750-6641
NPI assigned
Jun 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X G43841 CA Primary
Geriatric Medicine (Internal Medicine) Physician 207RG0300X G43841 CA

Addresses

Primary practice location

2501 Ocean Ave
San Francisco, CA 94143-0001

Mailing address

1635 Divisadero Street
Suite 625, Box 1821
San Francisco, CA 94143-0001
Phone (415) 476-4029

Other identifiers 1

IdentifierTypeStateIssuer
00G438410MedicaidCA

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: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
University of Alabama Health Services Foundation, PC. CurrentSince Jan 1, 2013 Accepting new patients

Locations

619 19th St S
Birmingham, AL 35249

619 19th St S
Birmingham, AL 35233
Phone (205) 934-6405

Interoperability endpoints

  • Direct secure messaging: clandefeld@direct.uabmedicine.org

Organizations & group practices 1

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.

NPI Registry JSON

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

{
    "created_epoch": "1149292800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1962440941",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1635 DIVISADERO STREET",
            "address_2": "SUITE 625, BOX 1821",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430001",
            "telephone_number": "415-476-4029",
            "fax_number": "415-476-4150"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2501 OCEAN AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941430001",
            "telephone_number": "415-750-6625",
            "fax_number": "415-750-6641"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LANDEFELD",
        "first_name": "CHARLES",
        "middle_name": "S.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-03",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "G43841",
            "primary": true
        },
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "CA",
            "license": "G43841",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00G438410",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.