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CARDIONET, LLC.
NPI 1427320399
Physiological Laboratory in Pleasanton, CA

Active since February 07, 2012
4430 ROSEWOOD DR STE 200, PLEASANTON, CA 94588(650) 293-2323 Get Directions Write a Review

NPPES record last updated: May 19, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 19, 2026, Oct 11, 2022, Jul 8, 2022 and 2 more (5 updates tracked since 2020).

About Cardionet, Llc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CARDIONET, LLC. (NPI 1427320399) is a healthcare organization registered as a physiological laboratory in Pleasanton, California and active in the NPI registry since February 2012. The organization lists Michael Meissner, President, as its authorized official.

NPPES Registry Identity

NPI1427320399
Entity TypeOrganization
Primary Taxonomy293D00000X
Legal Business NameCARDIONET, LLC.
Location Address4430 ROSEWOOD DR STE 200Pleasanton, CA 94588-3050
Mailing Address1000 Cedar Hollow Rd Ste 102Malvern, PA 19355-2300 · (610) 729-7000 · Fax (866) 328-1806
Phone(650) 293-2323
Organization SubpartNo
Authorized OfficialMichael MeissnerPresident · (617) 710-8029
Enumeration DateFebruary 7, 2012
Last NPPES UpdateMay 19, 20265 updates tracked since enumeration
NPPES CertifiedMay 19, 2026
✔ NPI 1427320399 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysiological LaboratoryLaboratories
Taxonomy Code293D00000X
Definition
A laboratory that operates independently of a hospital and physician's office to furnish physiological diagnostic services (e.g. EEG's , EKG's, scans, etc.). Facilities offering ONLY physiological services are not certified as independent laboratories. If an independent laboratory offers physiological services IN ADDITION to clinical laboratory services, they are surveyed only for compliance with the clinical laboratory regulations because there are no health and safety regulations for physiological services.
Also ListedDurable Medical Equipment & Medical SuppliesTaxonomy 332B00000X
4430 ROSEWOOD DR STE 200, Pleasanton, CA 94588
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and revalidation status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cardionet, Llc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20120612000657Non-DME Part B · Independent Diagnostic Testing Facility (IDTF)Due dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional 93229
An Electrocardiogram (ECG) is a test that records your heart's electrical activity for up to 30 days. You trigger a transmission if you feel symptoms, which is then reviewed by a healthcare professional. The report helps diagnose heart conditions.
103,457 services101,228 patients
Provision of test materials and equipment for home inr monitoring of patient with either mechanical heart valve(s), chronic atrial fibrillation, or venous thromboembolism who meets medicare coverage criteria; includes: provision of materials for use in the G0249
This service provides you with the necessary materials and equipment for home INR monitoring. It's for patients with mechanical heart valves, chronic atrial fibrillation, or venous thromboembolism. The materials are for those who meet Medicare's coverage criteria. This enables you to monitor your health at home.
87,456 services14,505 patients
Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring and transmission and analysis 93271
An Electrocardiogram (ECG) is a test that records the electrical activity of your heart. Continuous ECG monitoring for up to 30 days allows for symptom tracking and data transmission for analysis. This helps doctors identify irregular heart rhythms or conditions.
13,131 services13,052 patients
Electrocardiogram (ecg) up to 30 days continuous with symptom monitoring 93270
An Electrocardiogram (ECG) is a test that monitors your heart's electrical activity for up to 30 days. It helps identify irregular heartbeats or rhythms. You'll wear a small device that records your heart activity, especially when symptoms like chest pain or palpitations occur.
3,553 services3,532 patients
Electrocardiogram (ecg) 2-day continuous with report 93226
An Electrocardiogram (ECG) is a test that records the electrical activity of your heart over a 2-day period. It helps doctors understand how well your heart is working. A small device is attached to your chest to record the data. A report is then prepared based on these findings.
1,217 services1,183 patients
Electrocardiogram (ecg) 2-day continuous 93225
An Electrocardiogram (ECG) 2-day continuous is a non-invasive test that records the electrical activity of your heart over 48 hours. It helps to detect irregular heart rhythms, heart disease, or other cardiac conditions. You wear a portable device that records heart activity as you go about your daily activities.
44 services44 patients

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cardionet, LLC.'s NPI number?

The NPI number for Cardionet, LLC. is 1427320399. It was assigned to this organization in the NPPES registry on February 7, 2012.

Where is Cardionet, LLC. located?

Cardionet, LLC. is located at 4430 Rosewood Dr Ste 200, Pleasanton, CA 94588. The listed phone number is (650) 293-2323.

What is Cardionet, LLC.'s specialty?

The primary specialty registered for this NPI is Physiological Laboratory with taxonomy code 293D00000X.

Is Cardionet, LLC. enrolled in Medicare?

Yes. Cardionet, LLC. is registered in the Medicare PECOS enrollment system.

When is Cardionet, LLC.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Independent Diagnostic Testing Facility (IDTF)) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

What insurance does Cardionet, LLC. accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Absolute Total Care, Ambetter from Arizona Complete Health and Ambetter from Arkansas Health & Wellness and 36 other insurers list Cardionet, LLC. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cardionet, LLC. was last updated on May 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.