Crystal Michaelides, DO
Emergency Medicine Physician · West Islip, NY
Crystal Michaelides, DO is an emergency medicine physician with a practice address in West Islip, New York, and NPI 1811575640, issued on Apr 1, 2021. Check the license (New York 329749-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Crystal Michaelides
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 329749-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Montauk Hwy, West Islip, NY 11795
- Phone
- (631) 376-4045
- Enumerated
- Apr 1, 2021
- Record last updated
- Mar 17, 2025
- Fax
- (631) 376-3420
- Medicare enrollment
- Enrolled (PECOS I20240802003456); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 1000 Montauk Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rashad Abdallah, DOStudent in an Organized Health Care Education/Training Program1356194070
- Almothana Aburumman, MDStudent in an Organized Health Care Education/Training Program1669267506
- Hakeem Afuwape, DODiagnostic Radiology Physician1326292806
- Samantha Ahearn, PA-CPhysician Assistant1952279572
- Michele Ahlers, NURSE PRACTITIONERAdult Health Nurse Practitioner1063037869
- Fahim Ahmed, D.O.Emergency Medicine Physician1619904372
Verify Crystal Michaelides 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 329749-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average emergency medicine physician in 2024
39 Medicare Part D claims for 30 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.
One hospital affiliation
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Crystal Michaelides among 5,025 emergency medicine physician records in New York
Crystal Michaelides, 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 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 7% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2021 · 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).
45 emergency medicine physician records list a practice address in West Islip
They are 45 of the 1,107 NPPES records with a practice address in West Islip, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in West Islip → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Fahim Ahmed, D.O.West Islip, NY 117951619904372
- Eric Decena, M.D.West Islip, NY 117951699704007
- Tara DurasWest Islip, NY 117951194821066
- Ronald Dvorkin, MDWest Islip, NY 117951457375925
- Michelle Gebhard, DOWest Islip, NY 117951356365845
- Sanford Glantz, MDWest Islip, NY 117951124042668
- David Levy, DOWest Islip, NY 117951780608166
- Jeffrey Margulies, MDWest Islip, NY 117951689698904
Common questions
What is Crystal Michaelides, DO's NPI number?
Crystal Michaelides, DO's National Provider Identifier (NPI) is 1811575640, issued on Apr 1, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Crystal Michaelides, DO located?
The NPPES record lists a practice address at 1000 Montauk Hwy, West Islip, NY, 11795. Phone: (631) 376-4045. Providers update this record themselves, so call before visiting.
How can I verify Crystal Michaelides, DO's license?
NPPES lists New York license number 329749-01, 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 Crystal Michaelides, DO prescribe under Medicare Part D?
In 2024, Crystal Michaelides, DO had 39 Medicare Part D claims for 30 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.