Mark L Niemiera MD PC
NPI 1598869919 · Cardiovascular Disease Physician · Perth Amboy, NJ
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark L Niemiera MD PC is a Cardiovascular Disease Physician organization in Perth Amboy, NJ (NPI 1598869919).
Provider details
- NPI number
- 1598869919
- Entity type
- Organization
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Niemiera, Owner(732) 442-1441
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-08
- Last updated
- 2020-08-22
Frequently asked questions
- What is Mark L Niemiera MD PC's NPI number?
- Mark L Niemiera MD PC's National Provider Identifier (NPI) is 1598869919, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark L Niemiera MD PC?
- Mark L Niemiera MD PC is classified in the NPPES registry as Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mark L Niemiera MD PC located?
- Mark L Niemiera MD PC's practice location on file with NPPES is 613 Amboy Ave, Perth Amboy, NJ 08861-2577.
- What is Mark L Niemiera MD PC's phone number?
- The practice phone number listed in the NPPES registry for Mark L Niemiera MD PC is (732) 442-1441.
- Does Mark L Niemiera MD PC accept Medicare?
- Mark L Niemiera MD PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mark L Niemiera MD PC?
- The authorized official listed on Mark L Niemiera MD PC's NPPES record is Mark Niemiera, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark L Niemiera MD PC's NPI active?
- Yes — Mark L Niemiera MD PC's NPI (1598869919) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.