IRMS Clark Office

IRMS Clark Office

100 Walnut Ave., Suite 104
Clark, NJ 07066


Mon–Fri: 8:30 a.m. – 4:30 p.m.


Mon–Sun: 6:15 a.m. – 9:00 a.m.

The IRMS at Clark office is located at 100 Walnut Ave., Suite 104 in Clark, New Jersey. The office is conveniently located immediately off the Garden State Parkway at Exit 135. IRMS opened their Clark office in 2009 and has been servicing not just the residents of Union County but also those from Essex, Morris, Somerset and Middlesex Counties.

The IRMS at Clark office is led by Dr. Sarah C. Hessler and Dr. Melissa C. Yih, and is open Monday to Friday, 8:30am – 4:30pm. Morning monitoring hours (Bloodwork and Ultrasounds) are Monday to Sunday from 6:15am – 9:00am.

The Clark office provides both Telemedicine, as well as, in-person appointments. Our specialists provide the full array of fertility treatment that has made IRMS one of the top fertility centers in the nation. We offer IUIIVFICSIPGT (preimplantation genetic testing), egg freezingLGBTQ family building and all forms of third-party reproduction including egg donationsperm donationgestational surrogacy and anything associated with having a baby. If you are a cancer patient in need of an immediate appointment to assess your egg freezing options, we guarantee a consult within 24-48 hours. Our focus is to give access to care as quickly as possible for all patients.

Sarah C. Hessler, MD Clark Office Contact Information

Admin Coordinator
Heather Martz 732.943.7169

Melissa C. Yih, MD Clark Office Contact Information

Admin Coordinator
Lydia Figueroa 732.943.7169