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Important Alerts
Updates

The Extended Hours Center in Lake Success will be closed on Sunday, August 31 and Monday, September 1.

As of August 1, 2025, Optum Allergy and Immunology in Long Beach has closed, and the providers have relocated to Optum Allergy and Immunology in Bay Shore.

Recording/Photography Not Permitted on Premises

Office and Urgent Care Closures

The Croton-on-Hudson lab is temporarily closed until further notice.

COVID-19 Information and Updates

Flu and COVID-19 vaccines are now available ›

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Accepting new patients
Heather McMullen, MD
Heather McMullen, MD
Bariatric Surgery
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Heather McMullen, MD
Bariatric Surgery
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contact the location directly
575 Underhill Blvd
Syosset, NY 11791
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Accepting new patients
Amanda L. Messina, MD, FACS
Amanda L. Messina, MD, FACS
Bariatric Surgery
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Amanda L. Messina, MD, FACS
Bariatric Surgery
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111 Bedford Road
Katonah, NY 10536
100 South Bedford Road
Mount Kisco, NY 10549
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