Sean Javier Cloonan, M.D.
Infectious Disease Physician · Harrison, NY
Sean Javier Cloonan, M.D. is an infectious disease physician with a practice address in Harrison, New York, and NPI 1912171430, issued on Apr 15, 2008. Check the license (New York 254788, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Sean Javier Cloonan
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 254788 NY
Self-reported in NPPES; status is on the state search - Practice location
- 600 Mamaroneck Ave, Harrison, NY 10528
- Phone
- (914) 723-8100
- Enumerated
- Apr 15, 2008
- Record last updated
- Dec 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150527000563); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 970 in New York → Look up another NPI →
Also registered at 600 Mamaroneck Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Arrigo, FNPFamily Nurse Practitioner1659914075
- Arthur Badikian, MDPsychiatry Physician1134255946
- Lauren Behrman, PH.D.Clinical Psychologist1457599169
- Benjamin Berenfeld, M.D.Orthopaedic Hand Surgery Physician1548431687
- Cristian Brotea, M.D.Orthopaedic Surgery Physician1598955403
- Angela Chan, M.D.Allergy & Immunology Physician1366805798
Verify Sean Javier Cloonan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 254788Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
29% more Medicare Part D claims than the average infectious disease physician in 2024
891 Medicare Part D claims for 183 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.
Most prescribed
- Doxycycline Monohydrate105 claims
- Cefuroxime59 claims
- Ertapenem52 claims
- Sulfamethoxazole-Trimethoprim43 claims
- Ceftriaxone40 claims
- Cephalexin37 claims
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.2 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).
Industry payments in 2024: $39.42
2 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- White Plains Physician Services PCHarrison, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean Javier Cloonan among 970 infectious disease physician records in New York
Sean Javier Cloonan, M.D. is one of 970 infectious disease physician records with a practice address in New York. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 34% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2007 · median 2002 among the 624 with a school on file
- Record last updated2018 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in New York
There are 970 infectious disease physician records in New York.
All 970 in New York → Every provider in Harrison → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Kenneth Croen, M.D.Harrison, NY 105281831115880
- Ruchika Jain, M.DHartsdale, NY 105301538335104
- Marisa Montecalvo, MDHawthorne, NY 105321609899335
- John Nowakowski, MDHawthorne, NY 105321558384198
- Mark Sayegh, MDHawthorne, NY 105321700374360
- Akira Shishido, M.D.Hawthorne, NY 105321912346909
- Fnu Sonia, MDHawthorne, NY 105321467028506
- Gary Wormser, MDHawthorne, NY 105321790708428
Common questions
What is Sean Javier Cloonan, M.D.'s NPI number?
Sean Javier Cloonan, M.D.'s National Provider Identifier (NPI) is 1912171430, issued on Apr 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sean Javier Cloonan, M.D. located?
The NPPES record lists a practice address at 600 Mamaroneck Ave, Harrison, NY, 10528. Phone: (914) 723-8100. Providers update this record themselves, so call before visiting.
How can I verify Sean Javier Cloonan, M.D.'s license?
NPPES lists New York license number 254788, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sean Javier Cloonan, M.D. prescribe under Medicare Part D?
In 2024, Sean Javier Cloonan, M.D. had 891 Medicare Part D claims for 183 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Sean Javier Cloonan, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.2 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.