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Active NPI 1225037435 Individual Practitioner Male Practitioner

Dr. John Isaac , MD

Surgery • Warwick, RI

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. John Isaac, MD is a certified Surgery practicing in Warwick, RI. With approximately 42 years of clinical experience since completing medical education in 1984, Dr. Isaac delivers high-quality medical care to the local community at 390 TOLL GATE RD.

Dr. Isaac is affiliated with Abingdon Physician Partners and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with straightforward or low-level medical decision making, if using time, at least, new patient outpatient office visit, subsequent hospital care with moderate levelof medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

390 Toll Gate Rd
Ste.200

Warwick, RI 028864326

Telephone 4017398010
Fax 4017396087
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

1984

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Warwick, RI

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
42 Yrs +14.1 yrs vs City Avg
City Avg: 27.9 Yrs
State Avg: 29.0 Yrs
Regional Practice Density
21 Specialists

Practicing in Warwick, RI (160 Statewide)

Telehealth Adoption Rate
9.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
59.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Isaac (42 Years) 42 Yrs
Warwick Specialty Average (27.9 Years) 27.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
13 13 $308.08 $124.70

Medical Specialties & State Licenses

CMS Verified: 2025-09-17
Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License RI RI7525

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.

Surgery - Vascular Surgery

NUCC Taxonomy Code: 2086S0129X

State License RI MD07525

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Surgery

NUCC Taxonomy Code: 208600000X

State License NH 20154

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.

Surgery

NUCC Taxonomy Code: 208600000X

State License VA 0101268741

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
7000784 (RI)
Medicaid State Provider ID
3121659 (NH)
Commercial Insurance / Payer ID Blue Chip Provider Id
200881 (RI)
Commercial Insurance / Payer ID Blue Cross Provider Id
29065-0 (RI)

Hospital & Practice Group Affiliations

Abingdon Physician Partners

16000 Johnston Memorial Dr, Abingdon, VA 242117664

Phone: 2762581777

Secondary Practice Locations

16000 Johnston Memorial Dr Ste 101

Abingdon, VA 242117664

Phone: 2762581777

7554 Hospital Dr # D-303

Gloucester, VA 230614178

Phone: 8046933400

168 Kinsley St

Nashua, NH 030603634

Phone: 6035980455

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

3 Associated Practitioners
NPI 1265431357

Doctor of Medicine (M.D.)

NPI 1770582876

Doctor of Medicine (M.D.)

NPI 1861491086

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

11 Historical Events
🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 17, 2025

Surgery (License #MD07525 in RI)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) September 27, 2022

Surgery (License #20154 in NH)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) May 14, 2020

Surgery (License #RI7525 in RI)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 12, 2020

Surgery (License #20154 in NH)

NPI Profile Active November 23, 2010

NPI status registered as active in NPPES database

📍
Updated Practice Location November 23, 2010

Registered at 390 TOLL GATE RD, STE.200, WARWICK, RI 028864326 (Tel: 4017398010)

📍
Updated Business Mailing Address November 23, 2010

Registered at 390 TOLL GATE RD, STE.200, WARWICK, RI 028864326 (Tel: 4017398010)

👤
Provider Name / Credentials Updated November 23, 2010

Recorded as JOHN ISAAC, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 23, 2010

Surgery (License #RI7525 in RI)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 23, 2010

Surgery (License #MD07525 in RI)

🟢
Initial NPI Registration & Enumeration July 19, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1225037435
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: July 19, 2005
Last Update: September 17, 2025
Sole Proprietor: No

Mailing Address

390 Toll Gate Rd, Ste.200

Warwick, RI 028864326

Phone: 4017398010

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.