DR. JOHN ISAAC JR. M.D.
NPI 1225037435
Surgery in Warwick, RI
About Dr. John Isaac Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN ISAAC JR. M.D. (NPI 1225037435) is an individual surgery provider in Warwick, Rhode Island, licensed in Rhode Island (RI7525) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Johnston Memorial Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Secondary Practice Locations 3
Other Identifiers 4
Accepted 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. John Isaac Jr. 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johnston Memorial Hospital
Acute Care Hospitals · Abingdon, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02886 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
WARWICK, RI 02886
WARWICK, RI 02886
WARWICK, RI 02886
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 John Isaac's NPI number?
The NPI number for John Isaac is 1225037435. It was assigned to this individual provider in the NPPES registry on July 19, 2005.
Where is John Isaac located?
John Isaac practices at 390 Toll Gate Rd Ste.200, Warwick, RI 02886. The listed phone number is (401) 739-8010.
What is John Isaac's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is John Isaac enrolled in Medicare?
Yes. John Isaac 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 John Isaac accept?
Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Magnolia Health, Ambetter of Alabama and Ambetter of North Carolina and 2 other insurers list John Isaac 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.
Is John Isaac affiliated with any hospitals?
According to CMS data, John Isaac is affiliated with Johnston Memorial Hospital.
When was this NPI record last updated?
The NPPES record for John Isaac was last updated on September 17, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
