NPIMap

Organization Active NPI

Cardionet, LLC.

  • Physiological Laboratory
  • Pleasanton, CA
National Provider Identifier
1427320399
Registry record updated May 19, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physiological LaboratoryTaxonomy code 293D00000X
Legal business name
CARDIONET, LLC.
Practice address
4430 Rosewood Dr Ste 200
Pleasanton, CA 94588-3050
Phone
(650) 293-2323
NPI assigned
Feb 7, 2012
Last updated
May 19, 2026By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on May 19, 2026

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

Authorized official

Name
Michael Meissner
Title
President
Phone
(617) 710-8029

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physiological Laboratory 293D00000X Primary
Durable Medical Equipment & Medical Supplies 332B00000X

Addresses

Primary practice location

4430 Rosewood Dr Ste 200
Pleasanton, CA 94588-3050

Mailing address

1000 Cedar Hollow Rd Ste 102
Malvern, PA 19355-2300
Phone (610) 729-7000

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20120612000657 CA Part B Supplier - Independent Diagnostic Testing Facility (Idtf) 3678533536 Practice locations: Pleasanton, CA

Other NPIs with the same Medicare PAC ID 4

NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).

National Provider Directory

National Provider Directory
Tax ID family
Cardionet Inc6 organizations share this tax ID, including this one

Other organizations with this tax ID 5

Organizations that report the same tax identification number in the National Provider Directory.

Locations

4430 Rosewood Dr
#200
Pleasanton, CA 94588
Phone (650) 293-2323

Practitioners & affiliated clinicians

Practitioners 6

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.

NPI Registry JSON

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

{
    "created_epoch": "1328572800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1779148800000",
    "number": "1427320399",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1000 CEDAR HOLLOW RD STE 102",
            "city": "MALVERN",
            "state": "PA",
            "postal_code": "193552300",
            "telephone_number": "610-729-7000",
            "fax_number": "866-328-1806"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4430 ROSEWOOD DR STE 200",
            "city": "PLEASANTON",
            "state": "CA",
            "postal_code": "945883050",
            "telephone_number": "650-293-2323"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "CARDIONET, LLC.",
        "organizational_subpart": "NO",
        "enumeration_date": "2012-02-07",
        "last_updated": "2026-05-19",
        "certification_date": "2026-05-19",
        "status": "A",
        "authorized_official_last_name": "MEISSNER",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "617-710-8029"
    },
    "taxonomies": [
        {
            "code": "293D00000X",
            "taxonomy_group": "",
            "desc": "Physiological Laboratory",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "332B00000X",
            "taxonomy_group": "",
            "desc": "Durable Medical Equipment & Medical Supplies",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Pleasanton, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 19, 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.