Organization Active NPI

George Mark Childrens Fund

Doing business as George Mark Childrens House

  • Child Physical Disabilities Respite Care
  • San Leandro, CA
National Provider Identifier
1336200245
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Child Physical Disabilities Respite CareTaxonomy code 385HR2065X
Legal business name
GEORGE MARK CHILDRENS FUND
Doing business as
George Mark Childrens House
Practice address
2121 George Mark Lane
San Leandro, CA 94578-1017
Phone
(510) 346-4624
Fax
(510) 346-4620
NPI assigned
Dec 13, 2006
Organization subpart
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

Authorized official

Name
John D Golenski, EDD
Title
Executive Director
Phone
(415) 901-8192

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Skilled Nursing Facility 3140N1450X CA
Child Physical Disabilities Respite Care 385HR2065X CA Primary

Addresses

Primary practice location

2121 George Mark Lane
San Leandro, CA 94578-1017

Mailing address

2121 George Mark Lane
San Leandro, CA 94578-1017
Phone (510) 346-4624

Other names 1

  • George Mark Childrens House Doing business as

National Provider Directory

National Provider Directory

Locations

2121 George Mark Ln
Castro Valley, CA 94578
Phone (510) 346-4624

Practitioners & affiliated clinicians

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1165968000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1336200245",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2121 GEORGE MARK LANE",
            "city": "SAN LEANDRO",
            "state": "CA",
            "postal_code": "945781017",
            "telephone_number": "510-346-4624",
            "fax_number": "510-346-4620"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2121 GEORGE MARK LANE",
            "city": "SAN LEANDRO",
            "state": "CA",
            "postal_code": "945781017",
            "telephone_number": "510-346-4624",
            "fax_number": "510-346-4620"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GEORGE MARK CHILDRENS FUND",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-12-13",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "GOLENSKI",
        "authorized_official_first_name": "JOHN",
        "authorized_official_middle_name": "D",
        "authorized_official_title_or_position": "EXECUTIVE DIRECTOR",
        "authorized_official_telephone_number": "415-901-8192",
        "authorized_official_credential": "EDD"
    },
    "taxonomies": [
        {
            "code": "3140N1450X",
            "taxonomy_group": "",
            "desc": "Skilled Nursing Facility, Nursing Care, Pediatric",
            "state": "CA",
            "license": null,
            "primary": false
        },
        {
            "code": "385HR2065X",
            "taxonomy_group": "",
            "desc": "Respite Care, Respite Care, Physical Disabilities, Child",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "George Mark Childrens House",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in San Leandro, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.