Organization Active NPI

Garden Grove Convalescent Hospital Inc

  • Skilled Nursing Facility
  • Garden Grove, CA
National Provider Identifier
1295722809
Registry record updated May 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Skilled Nursing FacilityTaxonomy code 314000000X
License
060000112 Issued in CA
Legal business name
GARDEN GROVE CONVALESCENT HOSPITAL INC
Practice address
12882 Shackelford LN
Garden Grove, CA 92841-5109
Phone
(714) 638-9470
Fax
(714) 638-4549
NPI assigned
Sep 29, 2005
Organization subpart
No

NPPES NPI Registry

Updated by the provider on May 28, 2026

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

Authorized official

Name
Mr. John Henry Sy
Title
VP of Revenue Management
Phone
(562) 930-0777

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Skilled Nursing Facility 314000000X 060000112 CA Primary

Addresses

Primary practice location

12882 Shackelford LN
Garden Grove, CA 92841-5109

Mailing address

4115 E Broadway
Long Beach, CA 90803-1532
Phone (562) 930-0777

Other identifiers 1

IdentifierTypeStateIssuer
ZZT06145HMedicaidCA

Other names 1

  • GARDEN GROVE CONVALESCENT HOSPITAL & GUEST HOME Doing business as

Electronic endpoints 1

TypeEndpointUseAffiliation
CONNECT URL https://199.119.81.30:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRResponse_Service Other eSolutions Inc

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20100128000586 CA Part A Provider - Skilled Nursing Facility 0749322774 Practice locations: Garden Grove, CA

Skilled nursing facility certification: CCN 056145

Legal name
GARDEN GROVE CONVALESCENT HOSPITAL INC
Doing business as
GARDEN GROVE POST ACUTE
Certification status
Active
Provider type (POS)
Nursing home – SNF/NF dual certification
Participating since
Jan 1, 1971
Last certification
Mar 10, 2025
Beds
99
Ownership / control type
Corporation
Multi-facility organization
US Skilled Served
Organization structure
CorporationProprietary
Incorporated
Mar 9, 1989 in CA
Enrollment address
12882 Shackelford LN
Garden Grove, CA 92841-5109
Nursing home name
GARDEN GROVE POST ACUTE
Affiliated entity
THE MANDELBAUM FAMILY

Care Compare: Nursing home

Medicare Care Compare
Listed as
Garden Grove Post AcuteCCN 056145
Overall star rating
4 of 5
Health inspections
3 of 5
Staffing
4 of 5
Quality measures
5 of 5
Type
Medicare and Medicaid
Ownership
For profit - Corporation
Certified
Jan 1, 1971
Medicare certification status
ActiveFrom the Provider of Services file
Certified beds
9993.0 residents per day on average
Chain
The Mandelbaum Family18 facilities in the chain

Processed by Care Compare on Aug 1, 2026.

Laboratory certificates & supplier records

Derived by NPIMap

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

CLIA numberLaboratoryCertificateExpires
05D0666301Garden Grove Convalescent12882 Shackelford Lane, Garden Grove, CA 92841Certificate of waiverAug 31, 2026

National Provider Directory

National Provider Directory

Ownership & related parties

All disclosed owners & managing parties 21

As disclosed on the Medicare enrollment (CMS All Owners files). Individuals include officers, directors and managing employees, who may not hold ownership.

NameRoleSinceShare
Lily Christensen Individual Operational/Managerial Control Mar 1, 2024
Adp of the SNF Mar 1, 2024
Julie Pham Individual Operational/Managerial Control Mar 16, 2000
Adp of the SNF Mar 16, 2000
Letty Vasquez Individual Operational/Managerial Control Mar 31, 1997
Adp of the SNF Mar 31, 1997
Organization, Portland, OR LLC Adp of the SNF Jun 16, 2025
Janet Mandelbaum Individual Corporate OfficerPresident/Secretary Jan 2, 2019
Corporate Director Jan 1, 2023
Aurea Sarigan Individual Operational/Managerial Control Jan 1, 2011
Adp of the SNF May 9, 2025
Simcha Mandelbaum Individual Operational/Managerial Control Mar 1, 2026
Adp of the SNF Mar 1, 2026
Organization, Long Beach, CA LLC Adp of the SNF May 8, 2025
Holly Diaz Individual Operational/Managerial Control Jan 27, 2025
Adp of the SNF Jan 27, 2025
Maria Castro-Garcia Individual Corporate OfficerVP of Operations/Cfo Jan 1, 2023 33.33%
Operational/Managerial Control Jan 1, 2023
Adp of the SNF Nov 6, 2019
The Bentzion Mandelbaum 2021 Irrevocable Gift Trust No. 2 Organization, Long Beach, CA 5% Or Greater Direct Ownership Interest Jan 1, 2023 50%
Dwayne Hall Individual Operational/Managerial Control Mar 8, 2023
Adp of the SNF Mar 8, 2023
Brenda Mandelbaum Individual 5% Or Greater Indirect Ownership InterestTrustee Jan 1, 2020 100%
The Simcha Mandelbaum 2021 Irrevocable Gift Trust No. 2 Organization, Long Beach, CA 5% Or Greater Direct Ownership Interest Jan 1, 2023 30%
Connor Kelley Individual Operational/Managerial Control Aug 26, 2024
Adp of the SNF Aug 26, 2024
The Janet Mandelbaum 2021 Irrevocable Gift Trust No 2 Organization, Long Beach, CA 5% Or Greater Direct Ownership Interest Dec 1, 2021 20%
Ruth Nacar Individual Operational/Managerial Control Aug 3, 2022
Adp of the SNF Aug 3, 2022
Roger Nguyen Tran Individual Operational/Managerial Control Nov 1, 2024
Adp of the SNF Nov 1, 2024
Evangeline Sitchon Individual Operational/Managerial Control Oct 9, 2023
Adp of the SNF Oct 9, 2023
Clinton Williams Individual Operational/Managerial Control May 4, 2010
Adp of the SNF May 4, 2010
Organization, Long Beach, CA LLC Adp of the SNF Oct 26, 2018

Owners & managing parties with NPI records 1

Owners and managing parties disclosed on this facility’s Medicare enrollment that are themselves Medicare-enrolled.

Facilities with the same owner 16

Facilities that share an organizational owner with 5% or greater ownership or operational control.

View all 16

Practitioners & affiliated clinicians

Affiliated clinicians 9

Clinicians who list this facility as an affiliation in Medicare Care Compare.

NPI Registry JSON

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

{
    "created_epoch": "1127952000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1779926400000",
    "number": "1295722809",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4115 E BROADWAY",
            "city": "LONG BEACH",
            "state": "CA",
            "postal_code": "908031532",
            "telephone_number": "562-930-0777",
            "fax_number": "562-930-0728"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12882 SHACKELFORD LN",
            "city": "GARDEN GROVE",
            "state": "CA",
            "postal_code": "928415109",
            "telephone_number": "714-638-9470",
            "fax_number": "714-638-4549"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GARDEN GROVE CONVALESCENT HOSPITAL INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2005-09-29",
        "last_updated": "2026-05-28",
        "certification_date": "2026-05-28",
        "status": "A",
        "authorized_official_last_name": "SY",
        "authorized_official_first_name": "JOHN",
        "authorized_official_middle_name": "HENRY",
        "authorized_official_title_or_position": "VP OF REVENUE MANAGEMENT",
        "authorized_official_telephone_number": "562-930-0777",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "314000000X",
            "taxonomy_group": "",
            "desc": "Skilled Nursing Facility",
            "state": "CA",
            "license": "060000112",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "ZZT06145H",
            "state": "CA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://199.119.81.30:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRResponse_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.1066.1",
            "affiliationName": "eSolutions Inc",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CSV",
            "address_1": "8215 W 108th Ter",
            "city": "Overland Park",
            "state": "KS",
            "country_code": "US",
            "postal_code": "662101661",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "organization_name": "GARDEN GROVE CONVALESCENT HOSPITAL & GUEST HOME",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Garden Grove, CA

Sources for this page

Verify at the official NPI Registry.