Lloyd Marks, MD
NPI 1225091457 · Pediatric Cardiology Physician · Westfield, NJ
Lloyd Marks, MD is a Pediatric Cardiology Physician provider in Westfield, NJ (NPI 1225091457).
Provider details
- NPI number
- 1225091457
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 61495 (NJ)
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
20 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
- 2006-04-10
- Last updated
- 2013-12-04
Frequently asked questions
- What is Lloyd Marks's NPI number?
- Lloyd Marks's National Provider Identifier (NPI) is 1225091457, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lloyd Marks's specialty?
- Lloyd Marks is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Lloyd Marks located?
- Lloyd Marks's practice location on file with NPPES is 940 South Ave W, Westfield, NJ 07090-1490.
- What is Lloyd Marks's phone number?
- The practice phone number listed in the NPPES registry for Lloyd Marks is (908) 789-0512.
- Is Lloyd Marks's NPI active?
- Yes — Lloyd Marks's NPI (1225091457) is active in the NPPES registry as of the last update on 2013-12-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.