Diana Catherine Kontonotas-Willis, DO
Emergency Medicine Physician · Oceanside, NY
Diana Catherine Kontonotas-Willis, DO is an emergency medicine physician with a practice address in Oceanside, New York, and NPI 1609034842, issued on May 23, 2008. Check the license (New York 252390, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Diana Catherine Kontonotas-Willis
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 252390 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Healthy Way, Oceanside, NY 11572
- Phone
- (516) 632-4751
- Enumerated
- May 23, 2008
- Record last updated
- Jul 8, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (516) 336-2941
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 1 Healthy Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gabrielle Abbott, PAPhysician Assistant1669158036
- Batool Abiad, DOStudent in an Organized Health Care Education/Training Program1932040359
- Wray AdamsCertified Registered Nurse Anesthetist1548598675
- Anubhav Agarwal, MDSports Medicine (Family Medicine) Physician1568709244
- Brody Agres, PA-CMedical Physician Assistant1689470502
Verify Diana Catherine Kontonotas-Willis 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 252390Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average emergency medicine physician in 2024
145 Medicare Part D claims for 112 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefpodoxime Proxetil21 claims
- Prednisone18 claims
- Ondansetron Odt13 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.
Diana Catherine Kontonotas-Willis among 5,025 emergency medicine physician records in New York
Diana Catherine Kontonotas-Willis, DO is one of 5,025 emergency medicine physician records with a practice address in New York. 86% 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 35% of them.
- NPI issued2008 · 35% of these records are older, 58% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2011 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
27 emergency medicine physician records list a practice address in Oceanside
They are 27 of the 1,093 NPPES records with a practice address in Oceanside, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Oceanside → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Brian Beirne, D.O.Oceanside, NY 115721639155419
- Jeannine Eslinger, P.A.Oceanside, NY 115721700854817
- Daniel Ferrara, D.O.Oceanside, NY 115721811973852
- Stephen Gunn, D.O.Oceanside, NY 115721851378996
- Joshua Kugler, M.D.Oceanside, NY 115721255318515
- Teddy Lee, D.O.Oceanside, NY 115721265410542
- Theresa Patel, M.D.Oceanside, NY 115721609886985
- Pamela Portnoy-Saitta, D.O.Oceanside, NY 115721962674937
Common questions
What is Diana Catherine Kontonotas-Willis, DO's NPI number?
Diana Catherine Kontonotas-Willis, DO's National Provider Identifier (NPI) is 1609034842, issued on May 23, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Diana Catherine Kontonotas-Willis, DO located?
The NPPES record lists a practice address at 1 Healthy Way, Oceanside, NY, 11572. Phone: (516) 632-4751. Providers update this record themselves, so call before visiting.
How can I verify Diana Catherine Kontonotas-Willis, DO's license?
NPPES lists New York license number 252390, 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 Diana Catherine Kontonotas-Willis, DO prescribe under Medicare Part D?
In 2024, Diana Catherine Kontonotas-Willis, DO had 145 Medicare Part D claims for 112 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.