Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Diana Catherine Kontonotas-Willis, DO

Individual provider Emergency Medicine Physician · NPI 1609034842

Dr. Diana Catherine Kontonotas-Willis, DO is an Emergency Medicine Physician in Oceanside, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2008
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1 Healthy Way Dept OF Emergency Medicine
Oceanside, NY 11572-1551 Not confirmed with CMS for 15 years — call before visiting
Phone: (516) 632-4751
Fax: (516) 336-2941
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 252390 (NY)

Record details

NPI number1609034842
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedMay 23, 2008
Last updated in NPPESJuly 8, 2011

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients471
Services billed 513 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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