Individual provider Active NPI

Martha Lynn Baer, RN

  • Registered Nurse
  • San Francisco, CA
National Provider Identifier
1750226262
Registry record updated Apr 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Registered NurseTaxonomy code 163W00000X
License
733243 Issued in CA
Practice address
995 Potrero Ave
San Francisco, CA 94110-2859
Phone
(628) 206-5252
Fax
(628) 206-7505
NPI assigned
Apr 21, 2026
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 21, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Registered Nurse 163W00000X 733243 CA Primary

Addresses

Primary practice location

995 Potrero Ave
San Francisco, CA 94110-2859

Mailing address

995 Potrero Ave
San Francisco, CA 94110-2859
Phone (628) 206-5252

Medicare participation

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

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled
Credentials
Registered Nurse

State licenses

LicenseStateTypeSpecialty
733243CAMDRegistered Nurse

NPI Registry JSON

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

{
    "created_epoch": "1776729600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1750226262",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "995 POTRERO AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941102859",
            "telephone_number": "628-206-5252",
            "fax_number": "628-206-7505"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "995 POTRERO AVE",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941102859",
            "telephone_number": "628-206-5252",
            "fax_number": "628-206-7505"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BAER",
        "first_name": "MARTHA",
        "middle_name": "LYNN",
        "credential": "RN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2026-04-21",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "CA",
            "license": "733243",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Francisco, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.