Jonathan Brett Jassey, D.O.
Pediatric Adolescent Medicine Physician · Roslyn, NY
Jonathan Brett Jassey, D.O. is a pediatric adolescent medicine physician with a practice address in Roslyn, New York, and NPI 1689887705, issued on May 7, 2007. Check the license (New York 243849-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jonathan Brett Jassey
- Credential
- D.O.
- Primary taxonomy
- Pediatric Adolescent Medicine Physician 2080A0000X
- License number
- 243849-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1520 Old Northern Blvd, Roslyn, NY 11576
- Phone
- (516) 514-7337
- Enumerated
- May 7, 2007
- Record last updated
- Jan 19, 2023
- Fax
- (802) 491-8229
- Entity
- Type 1 · individual
8 nearest pediatric adolescent medicine physician records → All 372 in New York → Look up another NPI →
Verify Jonathan Brett Jassey 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 243849-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average pediatric adolescent medicine physician in 2024
19 Medicare Part D claims, against an average of 148 among the 384 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.
Industry payments in 2024: $806.60
27 payments; by number, the most common kind was food and beverage; the largest payer was Sekisui Diagnostics, LLC. The 859 providers of this specialty with any payment received $389.79 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.
Jonathan Brett Jassey among 372 pediatric adolescent medicine physician records in New York
Jonathan Brett Jassey, D.O. is one of 372 pediatric adolescent medicine physician records with a practice address in New York. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 70% of them.
- NPI issued2007 · 70% of these records are older, 17% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2023 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080A0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Adolescent Medicine Physician providers in New York
There are 372 pediatric adolescent medicine physician records in New York.
All 372 in New York → Every provider in Roslyn → Pediatric Adolescent Medicine Physician nationwide →
The 8 pediatric adolescent medicine physician records with the nearest ZIP codes
- Raffi Tingir, M.D.Roslyn, NY 115761366443616
- Uzma Iqbal, MDValley Stream, NY 115801477739753
- Alan Salem, M.D.Oceanside, NY 115721548289309
- Vivian Denise, D.O.Rockville Centre, NY 115701306930045
- Pamela Banks, DOMerrick, NY 115661083790828
- Jeffrey Silverstein, M.D.Merrick, NY 115661861580680
- Michele Seitz, MDLynbrook, NY 115631700915626
- Theresa Lanzone, M.D.Long Beach, NY 115611063596898
Common questions
What is Jonathan Brett Jassey, D.O.'s NPI number?
Jonathan Brett Jassey, D.O.'s National Provider Identifier (NPI) is 1689887705, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Brett Jassey, D.O. located?
The NPPES record lists a practice address at 1520 Old Northern Blvd, Roslyn, NY, 11576. Phone: (516) 514-7337. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Brett Jassey, D.O.'s license?
NPPES lists New York license number 243849-1, 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 Jonathan Brett Jassey, D.O. prescribe under Medicare Part D?
In 2024, Jonathan Brett Jassey, D.O. had 19 Medicare Part D claims; the average among pediatric adolescent medicine physician prescribers was 148. 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.