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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. WILLIAM PETER OLIVIERI MD
NPI 1083620777
Emergency Medicine in Hackettstown, NJ

Active since August 01, 2006PECOS Enrolled
651 WILLOW GROVE STREET, HACKETTSTOWN, NJ 07840(908) 850-6800(856) 616-1919 Get Directions Write a Review

NPPES record last updated: July 12, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. William Peter Olivieri Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM PETER OLIVIERI MD (NPI 1083620777) is an individual emergency medicine provider in Hackettstown, New Jersey, licensed in New Jersey (25MA04109800) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083620777
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. WILLIAM PETER OLIVIERICredential: MD
Location Address651 WILLOW GROVE STREETHackettstown, NJ 07840
Mailing Address183 Carmela CtJupiter, FL 33478-5401 · (561) 768-9227 · Fax (561) 768-9228
Phone(908) 850-6800
Fax(856) 616-1919
Sole ProprietorNo
Enumeration DateAugust 1, 2006
Last NPPES UpdateJuly 12, 2026
✔ NPI 1083620777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in NJ · 25MA04109800
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
651 WILLOW GROVE STREET, Hackettstown, NJ 07840
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Other Identifiers 1

Medicaid0514209NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William Peter Olivieri Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 07840 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.

IRA SEID MD
Emergency Medicine
651 WILLOW GROVE STREET
HACKETTSTOWN, NJ 07840
Warren County (877) 714-1592
DAVID SCOLNICK MD
Emergency Medicine
651 WILLOW GROVE STREET
HACKETTSTOWN, NJ 07840
Warren County (877) 714-1592
DAVID CATAQUET MD
Emergency Medicine
651 WILLOW GROVE STREET
HACKETTSTOWN, NJ 07840
Warren County (877) 714-1592
HACKETTSTOWN EMERGENCY ASSOCIATES
Emergency Medicine
651 WILLOW GROVE STREET
HACKETTSTOWN, NJ 07840
Warren County (856) 616-8100

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 William Olivieri's NPI number?

The NPI number for William Olivieri is 1083620777. It was assigned to this individual provider in the NPPES registry on August 1, 2006.

Where is William Olivieri located?

William Olivieri practices at 651 Willow Grove Street, Hackettstown, NJ 07840. The listed phone number is (908) 850-6800.

What is William Olivieri's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is William Olivieri enrolled in Medicare?

Yes. William Olivieri is registered in the Medicare PECOS enrollment system.

What insurance does William Olivieri accept?

Health plans from Medica list William Olivieri 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 William Olivieri was last updated on July 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days 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.