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DR. ISAAC O'NEAL M.D.
NPI 1598809626
Internal Medicine in Newark, NJ

Active since February 20, 2007PECOS EnrolledAccepts Medicare Assignment
110 WILLIAM ST, NEWARK, NJ 07102(973) 733-5300 Get Directions Write a Review

NPPES record last updated: March 18, 2013. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Isaac O'neal M.d. NPPES

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

DR. ISAAC O'NEAL M.D. (NPI 1598809626) is an individual internal medicine provider in Newark, New Jersey, licensed in New Jersey (25MA04217200) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of Rutgers New Jersey Medical School (1980).

NPPES Registry Identity

NPI1598809626
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ISAAC O'NEALCredential: M.D.
Location Address110 WILLIAM STNewark, NJ 07102-1304
Mailing Address110 William StNewark, NJ 07102-1304
Phone(973) 733-5300
Sole ProprietorNo
Medical School CMSRutgers New Jersey Medical SchoolGraduated 1980
Enumeration DateFebruary 20, 2007
Last NPPES UpdateMarch 18, 2013
✔ NPI 1598809626 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NJ · 25MA04217200
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
110 WILLIAM ST, Newark, NJ 07102
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Other Identifiers 2

Medicare UPINE53130NJ
Medicaid3605507NJ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Isaac O'neal M.d. 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.

PECOS PAC ID8224215181
PECOS Enrollment IDI20110602000435
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 07102 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
$144.86 typical visit price
range $63.84 – $190.92
Typical copayment $36.21 (range $15.96 – $47.73)
Most-billed visit code 99204
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 20

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

CITY OF NEWARK DEPT OF CHILD AND FAMILY WELL BEING MOBILE MEDICAL VAN
Clinic/Center (Federally Qualified Health Center (FQHC))
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7558
AYLIN ACIKGOZ
Student in an Organized Health Care Education/Training Program
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7600
DR. EDWARD ADDISON
Dentist
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7590
CITY OF NEWARK
Clinic/Center (Federally Qualified Health Center (FQHC))
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7558
JOANNE SO FNP-BC
Nurse Practitioner (Family)
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7600
DR. VINCENT DAVIDSON CARRINGTON DENTIST DDS
Dentist
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (718) 963-9500
CITY OF NEWARK
Clinic/Center (Community Health)
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7558
CITY OF NEWARK
Public Health or Welfare
110 WILLIAM ST
NEWARK, NJ 07102
Essex County (973) 733-7558

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 Isaac O'neal's NPI number?

The NPI number for Isaac O'neal is 1598809626. It was assigned to this individual provider in the NPPES registry on February 20, 2007.

Where is Isaac O'neal located?

Isaac O'neal practices at 110 William St, Newark, NJ 07102. The listed phone number is (973) 733-5300.

What is Isaac O'neal's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Isaac O'neal enrolled in Medicare?

Yes. Isaac O'neal 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.

What insurance does Isaac O'neal accept?

Health plans from Ambetter Health and Ambetter Health of Delaware list Isaac O'neal 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 Isaac O'neal was last updated on March 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.