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RALPH MAZER FNP-C
NPI 1558980904
Nurse Practitioner in Belle Mead, NJ

Active since April 15, 2020PECOS Enrolled
9 DUTCHTOWN HARLINGEN RD, BELLE MEAD, NJ 08502(908) 874-8883(908) 874-3595 Get Directions Write a Review

NPPES record last updated: March 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Mar 21, 2026, Dec 26, 2024, Sep 4, 2022 and 2 more (5 updates tracked since 2020).

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

NPI1558980904
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameRALPH MAZERCredential: FNP-C
Location Address9 DUTCHTOWN HARLINGEN RDBelle Mead, NJ 08502-5115
Mailing Address31 W Ashland StDoylestown, PA 18901-4228 · (215) 917-1296 · Fax (215) 489-5088
Phone(908) 874-8883
Fax(908) 874-3595
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateApril 15, 2020
Last NPPES UpdateMarch 21, 20265 updates tracked since enumeration
NPPES CertifiedMarch 21, 2026
✔ NPI 1558980904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in NJ · 26NJ01442700
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
9 DUTCHTOWN HARLINGEN RD, Belle Mead, NJ 08502
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ralph Mazer Fnp-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3274902564
PECOS Enrollment IDI20260420003510
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

New Patient
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MONTGOMERY MEDICAL ASSOCIATES
Specialist
9 DUTCHTOWN HARLINGEN RD
BELLE MEAD, NJ 08502
Somerset County (908) 874-8883
MISS FAWCETT SIEW SUIT LEE APN
Nurse Practitioner (Family)
9 DUTCHTOWN HARLINGEN RD
BELLE MEAD, NJ 08502
Somerset County (908) 874-8883
MONTGOMERY MEDICAL ASSOCIATES LLC
Internal Medicine
9 DUTCHTOWN HARLINGEN RD
BELLE MEAD, NJ 08502
Somerset County (908) 874-8883
MRS. MARY JOAN DORAN-BARR MSN, RN, APN
Nurse Practitioner (Acute Care)
9 DUTCHTOWN HARLINGEN RD, MONTGOMERY MEDICAL ASSOC, LLC
BELLE MEAD, NJ 08502
Somerset County (908) 874-8883

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 enrollment system.

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 4 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.