Nassau Immediate Medical Care

Walk-in Clinics, Internal Medicine, Urgent Care

465 Willis Ave, Williston Park, NY 11596

About Nassau Immediate Medical Care

Nassau Immediate Medical Care is a reliable clinic where patients can see Dr. Welgrin, who is thorough, accommodating, and easy to schedule with. The office is clean, and staff are helpful. Patients appreciate quick results for tests like COVID PCR, and many have been returning for years, trusting the care provided. It is a convenient and trusted choice for primary care and lab testing on Long Island.

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Reviews for Nassau Immediate Medical Care

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  • Dec 2025

    My wife and I have been coming to Dr Welgrin for many years. The office is convenient and we appreciate the attention given to us.

  • Jun 2025

    Dr Welgrin and Staff are Fantastic I’m so lucky I found them!

  • Oct 2023

    After going for an emergency appointment years ago, we learned Dr. Welgrin could be our primary care physician and have never looked back. She's very thorough and accommodating. No waiting months to schedule an appointment.

Hours

Monday: 9AM - 6PM
Tuesday: 9AM - 6PM
Wednesday: 9AM - 2PM
Thursday: 9AM - 6PM
Friday: 9AM - 5PM
Saturday: 9AM - 1PM
Sunday: 9AM - 1PM

Location

465 Willis Ave, Williston Park

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