Carpinteria LLC

Primary specialty

Skilled Nursing FacilityTaxonomy code 314000000X

Legal business name

CARPINTERIA LLC

Doing business as

Atherton Park Post Acute

Practice address

1275 Crane St
Menlo Park, CA 94025-4212

Phone

(650) 484-9186

NPI assigned

Nov 14, 2019

Last updated

Jun 27, 2024By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Ryan Williams

Title

Managing Member

Phone

(916) 945-1248

Specialties & licenses 1

Addresses

Other names 1

• Atherton Park Post Acute Doing business as

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

NPI to CCN mapping 1

The Medicare certification numbers (CCNs) connected to NPI 1003451915. Details of each certification follow.

• CCN 555827 Skilled nursing facility · Active · Details

Skilled nursing facility certification: CCN 555827

Legal name

CARPINTERIA LLC

Doing business as

ATHERTON PARK POST-ACUTE

Certification status

Active

Provider type (POS)

Nursing home – SNF/NF dual certification

Participating since

Jun 2, 2005

Last certification

Feb 14, 2025

Beds

160

Ownership / control type

Limited Liability Corporation

Multi-facility organization

Kalesta Health Care Group

Most recent change of ownership

Jan 1, 2007

Organization structure

LLCProprietary

Incorporated

May 9, 2019 in CA

Enrollment address

1275 Crane St
Menlo Park, CA 94025-4212

Nursing home name

ATHERTON PARK POST-ACUTE

Affiliated entity

KALESTA HEALTHCARE GROUP

Listed as

Atherton Park Post-AcuteCCN 555827 · All quality measures

Overall star rating

4 of 5

Health inspections

3 of 5

Staffing

3 of 5

Quality measures

5 of 5

Type

Medicare and Medicaid

Ownership

For profit - Limited Liability company

Certified

Jun 2, 2005

Medicare certification status

ActiveFrom the Provider of Services file

Certified beds

160158.3 residents per day on average

Chain

Kalesta Healthcare Group19 facilities in the chain

Processed by Care Compare on Aug 1, 2026.

All disclosed owners & managing parties 28

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

Owners & managing parties with NPI records 2

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

• Siamak Mehdizadehseraj, M.D.

  • Internal Medicine Physician
  • French Camp, CA
  • NPI 1720460942

  Adp of the SNF, Operational/Managerial Control

  CMS ownership
• Ishankumar Modi

  • Physical Therapist
  • Rocklin, CA
  • NPI 1710299342

  Corporate Director, Operational/Managerial Control

  CMS ownership

Facilities with the same owner 17

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

• Balboa Island, LLC

  dba California Park Post Acute

  • Skilled Nursing Facility
  • Chico, CA
  • NPI 1982439568

  Kalesta Healthcare Group, LLC

  CMS ownership
• Coronado Bay, LLC

  dba Harvest Crossing Post-Acute

  • Skilled Nursing Facility
  • Manteca, CA
  • NPI 1053063685

  Kalesta Healthcare Group, LLC

  CMS ownership
• Hamoa LLC

  dba Valley Skilled Nursing Center

  • Skilled Nursing Facility
  • Modesto, CA
  • NPI 1124663034

  Kalesta Healthcare Group, LLC

  CMS ownership
• Napili Bay, LLC

  dba Los Banos Post-Acute

  • Skilled Nursing Facility
  • Los Banos, CA
  • NPI 1770235319

  Kalesta Healthcare Group, LLC

  CMS ownership
• Newport LLC.

  • Skilled Nursing Facility
  • Modesto, CA
  • NPI 1255938015

  Kalesta Healthcare Group, LLC

  CMS ownership
• Peahi Bay, LLC

  dba River View Post Acute

  • Skilled Nursing Facility
  • Modesto, CA
  • NPI 1811646987

  Kalesta Healthcare Group, LLC

  CMS ownership
• Three Arch, LLC

  dba The Villas At Saratoga Skilled Nursing

  • Skilled Nursing Facility
  • Saratoga, CA
  • NPI 1235604646

  Kalesta Healthcare Group, LLC

  CMS ownership
• Trestles LLC

  dba City Creek Post Acute

  • Skilled Nursing Facility
  • Sacramento, CA
  • NPI 1508401423

  Kalesta Healthcare Group, LLC

  CMS ownership
• Cardiff Beach, LLC

  dba Olympic View Post Acute

  • Skilled Nursing Facility
  • Port Angeles, WA
  • NPI 1013718170

  Kalesta Healthcare Group, LLC

  CMS ownership
• Doheny Beach, LLC

  dba Othello Post Acute

  • Skilled Nursing Facility
  • Othello, WA
  • NPI 1801697966

  Kalesta Healthcare Group, LLC

  CMS ownership
• Malibu Beach, LLC

  dba Port Washington Post Acute

  • Skilled Nursing Facility
  • Bremerton, WA
  • NPI 1295536357

  Kalesta Healthcare Group, LLC

  CMS ownership
• Mavericks Beach, LLC

  dba Saint Helens Post Acute

  • Skilled Nursing Facility
  • Saint Helens, OR
  • NPI 1649077405

  Kalesta Healthcare Group, LLC

  CMS ownership

Affiliated clinicians 1

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

• Cassandra Alexis Gross, MD

  • Internal Medicine Physician
  • Stanford, CA
  • NPI 1245818517

  Nursing home

  Care Compare affiliation

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

{
    "created_epoch": "1573689600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1719446400000",
    "number": "1003451915",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "20400 SARATOGA LOS GATOS RD",
            "city": "SARATOGA",
            "state": "CA",
            "postal_code": "950705927"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1275 CRANE ST",
            "city": "MENLO PARK",
            "state": "CA",
            "postal_code": "940254212",
            "telephone_number": "650-484-9186"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CARPINTERIA LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-11-14",
        "last_updated": "2024-06-27",
        "certification_date": "2024-06-27",
        "status": "A",
        "authorized_official_last_name": "WILLIAMS",
        "authorized_official_first_name": "RYAN",
        "authorized_official_title_or_position": "MANAGING MEMBER",
        "authorized_official_telephone_number": "916-945-1248"
    },
    "taxonomies": [
        {
            "code": "314000000X",
            "taxonomy_group": "",
            "desc": "Skilled Nursing Facility",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Atherton Park Post Acute",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Atherton Park Post Acute",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

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• Skilled Nursing Facility in Menlo Park, CA
• Providers in Menlo Park, CA by specialty
• Skilled Nursing Facility in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 27, 2024; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.