Fountain Valley Regional Sleep Center LLC

Primary specialty

Sleep Disorder Diagnostic Clinic/CenterTaxonomy code 261QS1200X

Legal business name

FOUNTAIN VALLEY REGIONAL SLEEP CENTER LLC

Doing business as

HSD Sleep Center

Practice address

24953 Paseo de Valencia Ste 3a
Laguna Hills, CA 92653-4342

Phone

(888) 861-0909

Fax

(888) 861-0910

NPI assigned

Aug 23, 2018

Last updated

Feb 18, 2026By the provider in NPPES

Organization subpart

Yes

Parent organization

FOUNTAIN VALLEY REGIONAL SLEEP CENTER, LLCAs reported in NPPES

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

Authorized official

Name

Mr. Andrew Lawrence Arambula

Title

President & Ceo

Phone

(714) 427-5900

Specialties & licenses 1

Addresses

Other names 1

• HSD Sleep Center Doing business as

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Part of

Fountain Valley Regional Sleep Center LLC

Locations

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

• Fountain Valley Regional Sleep Center, LLC

  dba HSD Sleep Center

  • Sleep Disorder Diagnostic Clinic/Center
  • Fountain Valley, CA
  • NPI 1760650857
  NPPES parent name

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Vidal Julio Espeleta, M.D.

  • Pulmonary Disease Physician
  • Laguna Hills, CA
  • NPI 1245327808
  NPD

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

{
    "created_epoch": "1534982400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771372800000",
    "number": "1447731948",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "24953 PASEO DE VALENCIA STE 3A",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926534342",
            "telephone_number": "888-861-0909",
            "fax_number": "888-861-0910"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24953 PASEO DE VALENCIA STE 3A",
            "city": "LAGUNA HILLS",
            "state": "CA",
            "postal_code": "926534342",
            "telephone_number": "888-861-0909",
            "fax_number": "888-861-0910"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "FOUNTAIN VALLEY REGIONAL SLEEP CENTER LLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "FOUNTAIN VALLEY REGIONAL SLEEP CENTER, LLC",
        "enumeration_date": "2018-08-23",
        "last_updated": "2026-02-18",
        "certification_date": "2026-02-18",
        "status": "A",
        "authorized_official_last_name": "ARAMBULA",
        "authorized_official_first_name": "ANDREW",
        "authorized_official_middle_name": "LAWRENCE",
        "authorized_official_title_or_position": "PRESIDENT & CEO",
        "authorized_official_telephone_number": "714-427-5900",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "261QS1200X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Sleep Disorder Diagnostic",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "HSD Sleep Center",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Foot and Ankle Institute of the West
• Mary Jane Ford, LMFT
• Karen E Forhane, FNP-C, ACNPC-AG
• Fred Fortun
• Mark Peters Foster, M.D.
• Amy Fox, MFTI
• Delyn Monica Fraley
• Leilani Tehani Keahi Lodevic Fraley, RN
• Corazon Escusa Francisco, NP
• Karen Francisco

• Sleep Disorder Diagnostic Clinic/Center in Laguna Hills, CA
• Providers in Laguna Hills, CA by specialty
• Sleep Disorder Diagnostic Clinic/Center in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.