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HORIZON CARDIOLOGY LLC
NPI 1043762461
Internal Medicine - Cardiovascular Disease in Fair Lawn, NJ

Active since November 02, 2016
10-14 SADDLE RIVER RD, FAIR LAWN, NJ 07410(551) 246-3008(201) 703-1100 Get Directions Write a Review

NPPES record last updated: November 2, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Horizon Cardiology Llc NPPES

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

HORIZON CARDIOLOGY LLC (NPI 1043762461) is a healthcare organization registered as a cardiovascular disease in Fair Lawn, New Jersey and active in the NPI registry since November 2016. The organization lists Marcus L Williams, Owner, as its authorized official.

NPPES Registry Identity

NPI1043762461
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameHORIZON CARDIOLOGY LLC
Location Address10-14 SADDLE RIVER RDFair Lawn, NJ 07410-5728
Mailing Address261 Midvale StRidgewood, NJ 07450-4922 · (201) 967-8425 · Fax (201) 263-4665
Phone(551) 246-3008
Fax(201) 703-1100
Organization SubpartNo
Authorized OfficialMarcus L WilliamsOwner · (551) 246-3008
Enumeration DateNovember 2, 2016
✔ NPI 1043762461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in NJ · 25MA06503600
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
10-14 SADDLE RIVER RD, Fair Lawn, NJ 07410
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Other Identifiers 3

Medicare UPIND26865NJ
Medicare PIN951543NJ
Medicaid7284501NJ

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Horizon Cardiology LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Marcus Williams, M.D.
Cardiovascular Disease (Cardiology)
NPI 1467526525
10-14 SADDLE RIVER RD
Fair Lawn, NJ 07410
(551) 246-3008
✔ PECOS✔ Accepts Medicare0.9 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Horizon Cardiology LLC's NPI number?

The NPI number for Horizon Cardiology LLC is 1043762461. It was assigned to this organization in the NPPES registry on November 2, 2016.

Where is Horizon Cardiology LLC located?

Horizon Cardiology LLC is located at 10-14 Saddle River Rd, Fair Lawn, NJ 07410. The listed phone number is (551) 246-3008.

What is Horizon Cardiology LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Horizon Cardiology LLC enrolled in Medicare?

Yes. Horizon Cardiology LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Horizon Cardiology LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Horizon Cardiology LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Horizon Cardiology LLC was last updated on November 2, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.