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MARK L NIEMIERA MD PC
NPI 1598869919
Internal Medicine - Cardiovascular Disease in Perth Amboy, NJ

Active since September 08, 2006CLIA 31D0961329 · Waiver
613 AMBOY AVE, SUITE 104, PERTH AMBOY, NJ 08861(732) 442-1441(732) 442-7684 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mark L Niemiera Md Pc NPPES

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

MARK L NIEMIERA MD PC (NPI 1598869919) is a healthcare organization registered as a cardiovascular disease in Perth Amboy, New Jersey and active in the NPI registry since September 2006. The organization holds a CLIA Waiver certificate valid through June 1, 2027 and lists Mark Lee Niemiera, Owner, as its authorized official.

NPPES Registry Identity

NPI1598869919
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameMARK L NIEMIERA MD PC
Location Address613 AMBOY AVE, SUITE 104Perth Amboy, NJ 08861-2577
Mailing Address613 Amboy Ave, Suite 104Perth Amboy, NJ 08861-2577 · (732) 442-1441 · Fax (732) 442-7684
Phone(732) 442-1441
Fax(732) 442-7684
Organization SubpartNo
Authorized OfficialMark Lee NiemieraOwner · (732) 442-1441
Enumeration DateSeptember 8, 2006
Last NPPES UpdateAugust 22, 2020
✔ NPI 1598869919 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
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.
613 AMBOY AVE, Perth Amboy, NJ 08861
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

Mark L Niemiera Md Pc 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 Mark L Niemiera MD PC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Mark Niemiera, MD
Cardiovascular Disease (Cardiology)
NPI 1780788109
613 AMBOY AVE SUITE 104
Perth Amboy, NJ 08861
(732) 442-1441
✔ PECOSSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 31D0961329

Mark L Niemiera MD PC · Perth Amboy, NJ
Active · expires Jun 1, 2027
CLIA Number31D0961329
Laboratory TypePhysician Office
Certificate Effective DateJune 2, 2025
Certificate Expiration DateJune 1, 2027
Laboratory DirectorMark L. Niemiera
Laboratory Phone(732) 442-1441
Laboratory LocationMark L Niemiera MD PC613 Amboy Avenue Suite 104, Perth Amboy, NJ 08861
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Mark L Niemiera MD PC's NPI number?

The NPI number for Mark L Niemiera MD PC is 1598869919. It was assigned to this organization in the NPPES registry on September 8, 2006.

Where is Mark L Niemiera MD PC located?

Mark L Niemiera MD PC is located at 613 Amboy Ave Suite 104, Perth Amboy, NJ 08861. The listed phone number is (732) 442-1441.

What is Mark L Niemiera MD PC's specialty?

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

Is Mark L Niemiera MD PC enrolled in Medicare?

Yes. Mark L Niemiera MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mark L Niemiera MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Mark L Niemiera MD PC. 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.

Does Mark L Niemiera MD PC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 31D0961329) is associated with this NPI, valid through June 1, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Mark L Niemiera MD PC was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.