William Andrew Arthur Karalis, DO
Emergency Medicine Physician · Manhasset, NY
William Andrew Arthur Karalis, DO is an emergency medicine physician with a practice address in Manhasset, New York, and NPI 1891435731, issued on Mar 30, 2022. Check the license (New York 335875, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William Andrew Arthur Karalis
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 335875 NY
Self-reported in NPPES; status is on the state search - Practice location
- 300 Community Dr, Manhasset, NY 11030
- Phone
- (516) 562-3047
- Enumerated
- Mar 30, 2022
- Record last updated
- Aug 13, 2025
- Medicare enrollment
- Enrolled (PECOS I20250904000592); may accept Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 300 Community Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrea Abbondondolo, PAReligious Nonmedical Nursing Personnel1154441186
- Mahmoud AbdelazizInternal Medicine Physician1750814562
- Fatima AbidPhysician Assistant1215669346
- Ahmed AboseriaStudent in an Organized Health Care Education/Training Program1114777067
- Nikil Abraham, CRNACertified Registered Nurse Anesthetist1962180455
- Rolson Abraham, RPHPharmacist1346673209
Verify William Andrew Arthur Karalis 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 335875Check 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 emergency medicine physician in 2024
29 Medicare Part D claims for 24 beneficiaries, against an average of 226 among the 54,106 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.
William Andrew Arthur Karalis among 5,025 emergency medicine physician records in New York
William Andrew Arthur Karalis, 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 2022, is newer than 93% of them.
- NPI issued2022 · 93% of these records are older, 3% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2022 · median 2013 among the 3,232 with a school on file
- Record last updated2025 · 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).
127 emergency medicine physician records list a practice address in Manhasset
They are 127 of the 2,794 NPPES records with a practice address in Manhasset, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Manhasset → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Isabel Barata, MDManhasset, NY 110301942371034
- Gar Chan, MDManhasset, NY 110301306917497
- Christopher Contino, MDManhasset, NY 110301922179316
- Leonardo Huertas, MDManhasset, NY 110301679553846
- Tadeusz Korszun, MDManhasset, NY 110301457373896
- Ingrid Llovera, MDManhasset, NY 110301033279104
- Evan Meiner, MDManhasset, NY 110301275603326
- Mathew Nelson, DOManhasset, NY 110301568532612
Common questions
What is William Andrew Arthur Karalis, DO's NPI number?
William Andrew Arthur Karalis, DO's National Provider Identifier (NPI) is 1891435731, issued on Mar 30, 2022. An NPI identifies a provider in billing; it is not a license.
Where is William Andrew Arthur Karalis, DO located?
The NPPES record lists a practice address at 300 Community Dr, Manhasset, NY, 11030. Phone: (516) 562-3047. Providers update this record themselves, so call before visiting.
How can I verify William Andrew Arthur Karalis, DO's license?
NPPES lists New York license number 335875, 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 William Andrew Arthur Karalis, DO prescribe under Medicare Part D?
In 2024, William Andrew Arthur Karalis, DO had 29 Medicare Part D claims for 24 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.