Ralph Mazer, FNP-C
NPI 1558980904 · Nurse Practitioner · Belle Mead, NJ
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ralph Mazer, FNP-C is a Nurse Practitioner provider in Belle Mead, NJ (NPI 1558980904).
Provider details
- NPI number
- 1558980904
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- 26NJ01442700 (NJ)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$133 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-15
- Last updated
- 2026-03-21
- Certified
- 2026-03-21
Frequently asked questions
- What is Ralph Mazer's NPI number?
- Ralph Mazer's National Provider Identifier (NPI) is 1558980904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ralph Mazer's specialty?
- Ralph Mazer is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ralph Mazer located?
- Ralph Mazer's practice location on file with NPPES is 9 Dutchtown Harlingen Rd, Belle Mead, NJ 08502-5115.
- What is Ralph Mazer's phone number?
- The practice phone number listed in the NPPES registry for Ralph Mazer is (908) 874-8883.
- Does Ralph Mazer accept Medicare?
- Ralph Mazer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ralph Mazer's NPI active?
- Yes — Ralph Mazer's NPI (1558980904) is active in the NPPES registry as of the last update on 2026-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.