Marc Klapholz, M.D.
NPI 1063447829 · Cardiovascular Disease Physician · Newark, NJ
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marc Klapholz, M.D. is a Cardiovascular Disease Physician provider in Newark, NJ (NPI 1063447829).
Provider details
- NPI number
- 1063447829
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA06249400 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 73 | 26 |
| Sacubitril/Valsartanbrand: Entresto | 63 | 20 |
| Spironolactone | 62 | 19 |
| Carvedilol | 50 | 18 |
| Ambrisentan | 48 | — |
| Selexipagbrand: Uptravi | 40 | — |
| Apixabanbrand: Eliquis | 38 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2022-02-02
- Certified
- 2022-02-02
Frequently asked questions
- What is Marc Klapholz's NPI number?
- Marc Klapholz's National Provider Identifier (NPI) is 1063447829, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marc Klapholz's specialty?
- Marc Klapholz is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Marc Klapholz located?
- Marc Klapholz's practice location on file with NPPES is 90 Bergen St, Newark, NJ 07103-2425.
- What is Marc Klapholz's phone number?
- The practice phone number listed in the NPPES registry for Marc Klapholz is (973) 972-2573.
- Does Marc Klapholz accept Medicare?
- Marc Klapholz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marc Klapholz's NPI active?
- Yes — Marc Klapholz's NPI (1063447829) is active in the NPPES registry as of the last update on 2022-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.