John Isaac, M.D.
Surgery Physician · Warwick, RI
John Isaac, M.D. is a surgery physician with a practice address in Warwick, Rhode Island, and NPI 1225037435, issued on Jul 19, 2005. Check the license (Rhode Island RI7525, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- John Isaac
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- RI7525 RI
MD07525 RI
20154 NH
0101268741 VA
Self-reported in NPPES; status is on the state search - Practice location
- 390 Toll Gate RD, Warwick, RI 02886
- Phone
- (401) 739-8010
- Enumerated
- Jul 19, 2005
- Record last updated
- Sep 17, 2025
- Fax
- (401) 739-6087
- Medicaid IDs
- 7000784 RI
3121659 NH - Medicare enrollment
- Enrolled (PECOS I20200520002358); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 151 in Rhode Island → Look up another NPI →
Also registered at 390 Toll Gate RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Brennan, O.D.Optometrist1871682351
- Keith Callahan, M.D.Family Medicine Physician1629063219
- Candace Dyer, M.D.Surgery Physician1770582876
- Heather Hurlburt, MDCardiovascular Disease Physician1932278322
- Curtis Jones, MDUrology Physician1700820578
- Paula Kocon, LICSWClinical Social Worker1508226614
Verify John Isaac in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license RI7525Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 89.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Abingdon Physician PartnersAbingdon, VA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Isaac among 151 surgery physician records in Rhode Island
John Isaac, M.D. is one of 151 surgery physician records with a practice address in Rhode Island. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated1984 · median 2001 among the 78 with a school on file
- Record last updated2025 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Rhode Island
There are 151 surgery physician records in Rhode Island.
All 151 in Rhode Island → Every provider in Warwick → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Joseph Brady, MDWarwick, RI 028861407818404
- Michael Connolly, MDWarwick, RI 028861841410743
- Fariba Dayhim, M.D.Warwick, RI 028861790941805
- Candace Dyer, M.D.Warwick, RI 028861770582876
- Hisham Hourani, MDWarwick, RI 028861932202918
- Peter Kim, M.D.Warwick, RI 028861205943511
- Guy Lancellotti, MDWarwick, RI 028861609838697
- David Luz, M.D.Warwick, RI 028861861491086
Common questions
What is John Isaac, M.D.'s NPI number?
John Isaac, M.D.'s National Provider Identifier (NPI) is 1225037435, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Isaac, M.D. located?
The NPPES record lists a practice address at 390 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 739-8010. Providers update this record themselves, so call before visiting.
How can I verify John Isaac, M.D.'s license?
NPPES lists Rhode Island license number RI7525, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is John Isaac, M.D.'s MIPS final score?
The 2023 MIPS final score is 89.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.