Individual provider Active NPI

Louise Christie Walter, M.D.

  • Geriatric Medicine (Internal Medicine) Physician
  • San Francisco, CA
National Provider Identifier
1689659187
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X
License
A061028 Issued in CA
Practice address
4150 Clement St
VA Medical Center 181G
San Francisco, CA 94121-1545
Phone
(415) 221-4810
Fax
(415) 750-6641
NPI assigned
Dec 7, 2005
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Geriatric Medicine (Internal Medicine) Physician 207RG0300X A061028 CA Primary

Addresses

Primary practice location

4150 Clement St
VA Medical Center 181G
San Francisco, CA 94121-1545

Mailing address

4150 Clement St
VA Medical Center 181G
San Francisco, CA 94121-1545
Phone (415) 221-4810

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
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
I20160218002301 CA Order and Referring Only - Geriatric MedicinePractitioner - Internal MedicinePractitioner - Geriatric Medicine 8820287485

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
61028CAMDPharmacist
A061028CAMDGeriatric Medicine (Internal Medicine) Physician

Practice roles

OrganizationSpecialtyStatusNew patients
UCSF Medical Group Business Services Past Accepting new patients
Regents of the University of California Past Accepting new patients
University of California San Francisco Medical Center Past Accepting new patients

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.

NPI Registry JSON

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

{
    "created_epoch": "1133913600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1689659187",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST",
            "address_2": "VA MEDICAL CENTER 181G",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211545",
            "telephone_number": "415-221-4810",
            "fax_number": "415-750-6641"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4150 CLEMENT ST",
            "address_2": "VA MEDICAL CENTER 181G",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941211545",
            "telephone_number": "415-221-4810",
            "fax_number": "415-750-6641"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALTER",
        "first_name": "LOUISE",
        "middle_name": "CHRISTIE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-12-07",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "CA",
            "license": "A061028",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

Verify at the official NPI Registry.