John James Sullivan, DO
Internal Medicine Physician · Warwick, RI
John James Sullivan, DO is an internal medicine physician with a practice address in Warwick, Rhode Island, and NPI 1700299625, issued on Jun 9, 2014. Check the license (Rhode Island DO00852, 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 James Sullivan
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- DO00852 RI
Self-reported in NPPES; status is on the state search - Practice location
- 455 Toll Gate RD, Warwick, RI 02886
- Phone
- (401) 737-7000
- Enumerated
- Jun 9, 2014
- Record last updated
- Feb 3, 2023
- Medicare enrollment
- Enrolled (PECOS I20170512001688); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2014
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 455 Toll Gate RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mareena Aldayani, DOStudent in an Organized Health Care Education/Training Program1740977610
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Verify John James Sullivan 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 DO00852Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
46 Medicare Part D claims for 18 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Affinity Physicians LLC.Warwick, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John James Sullivan among 1,033 internal medicine physician records in Rhode Island
John James Sullivan, DO is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 58% of them.
- NPI issued2014 · 58% of these records are older, 40% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2014 · median 2006 among the 590 with a school on file
- Record last updated2023 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
120 internal medicine physician records list a practice address in Warwick
They are 120 of the 2,776 NPPES records with a practice address in Warwick, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Warwick → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- John Audett, MDWarwick, RI 028861609872878
- Amy Boyer, M.D.Warwick, RI 028861346215357
- Patricia Chace, MDWarwick, RI 028861285634535
- Wilfredo Curioso, M.D.Warwick, RI 028861518932565
- Mechery Davis, MDWarwick, RI 028861407824477
- Robert Ellison, M.D.Warwick, RI 028861083610836
- Neal Galinko, M.D.Warwick, RI 028861508862350
- Nicholas Grumbach, M.D.Warwick, RI 028861932105780
Common questions
What is John James Sullivan, DO's NPI number?
John James Sullivan, DO's National Provider Identifier (NPI) is 1700299625, issued on Jun 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John James Sullivan, DO located?
The NPPES record lists a practice address at 455 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 737-7000. Providers update this record themselves, so call before visiting.
How can I verify John James Sullivan, DO's license?
NPPES lists Rhode Island license number DO00852, 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.
How much does John James Sullivan, DO prescribe under Medicare Part D?
In 2024, John James Sullivan, DO had 46 Medicare Part D claims for 18 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.