RALPH MAZER FNP-C
NPI 1558980904
Nurse Practitioner in Belle Mead, NJ
About Ralph Mazer Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RALPH MAZER FNP-C (NPI 1558980904) is an individual nurse practitioner in Belle Mead, New Jersey, licensed in New Jersey (26NJ01442700) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ralph Mazer Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Ralph Mazer reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Belle Mead, NJ 08502
- Reassigned Medicare billing, New Jersey enrollment
- 8 clinicians in this Medicare group
Langhorne, PA 19047
- Reassigned Medicare billing, Pennsylvania enrollment
- 103 clinicians in this Medicare group
Philadelphia, PA 19128
- Reassigned Medicare billing, Pennsylvania enrollment
- 49 clinicians in this Medicare group
Clewiston, FL 33440
- Reassigned Medicare billing, Pennsylvania enrollment
- 38 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 08502 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BELLE MEAD, NJ 08502
BELLE MEAD, NJ 08502
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 Ralph Mazer's NPI number?
The NPI number for Ralph Mazer is 1558980904. It was assigned to this individual provider in the NPPES registry on April 15, 2020.
Where is Ralph Mazer located?
Ralph Mazer practices at 9 Dutchtown Harlingen Rd, Belle Mead, NJ 08502. The listed phone number is (908) 874-8883.
What is Ralph Mazer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Ralph Mazer enrolled in Medicare?
Yes. Ralph Mazer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ralph Mazer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ralph Mazer reassigns Medicare benefits to 4 organizations: Montgomery Medical Associates LLC (Belle Mead, NJ), Galen Inpatient Physicians PC (Langhorne, PA), Medical Services Of Suffolk County PC (Philadelphia, PA) and Small Hospital Innovations LLC (Clewiston, FL). Each 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 Ralph Mazer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ralph Mazer accept?
Health plans from Oscar Health list Ralph Mazer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ralph Mazer was last updated on March 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Ralph Mazer, FNP-C · NPI 1558980904
Nurse Practitioner physician in Belle Mead, New Jersey. Individual provider, active in the CMS NPPES registry since April 15, 2020.
## Identity
- **NPI:** 1558980904 (Entity type: Individual)
- **Enumerated:** April 15, 2020
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 26NJ01442700 (New Jersey)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9 DUTCHTOWN HARLINGEN RD, Belle Mead, NJ 08502-5115
- **Phone:** (908) 874-8883 · **Fax:** (908) 874-3595
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Montgomery Medical Associates LLC (NPI 1366501462, Belle Mead, NJ); Galen Inpatient Physicians PC (NPI 1841177193, Langhorne, PA); Medical Services Of Suffolk County PC (NPI 1811235724, Philadelphia, PA); Small Hospital Innovations LLC (NPI 1184040560, Clewiston, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** March 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1558980904) · Data from the CMS NPPES public registry.