In-office services and labs

In-Office Services and Labs

In our Wilmette and Glenview Locations, we offer these office services:

OB Gynecologist ultrasound illustration


We use ultrasound to confirm your due date, check for obvious abnormalities, and check placental location. Ultrasound is also used to detect a number of possible birth defects such as Down Syndrome, a neural tube defect (Level II ultrasound is used for this) and others.

A 3D ultrasound scan is just what it sounds like – it’s a three-dimensional image of your baby. A 4D ultrasound scan shows a 3D image of your baby moving over time. The fourth dimension is time.

Physicians and Midwives' stethoscope illustration

Non-Stress Test (NST)

An NST is a heart rate test performed on your baby. An NST usually last 20 – 45 minutes. During that time your baby’s movement and heart rate are monitored. As your baby moves, the heart rate should increase, just like ours does when we move around. An NST is not needed for all babies. It is used if you suspect your baby isn’t moving around as much as it used to, you’re overdue, or you’re at high risk for some other reason. An NST is non-invasive and safe for you and your baby.
Illustration of a DNA for pregnancy care

Biophysical Profile

A biophysical profile is a way to measure the health of your baby during pregnancy. It combines an ultrasound scan with fetal heart monitoring and a non-stress test. A biophysical profile measures your baby’s heart rate, muscle tone, movement, breathing, and how much amniotic fluid surrounds your baby. If a biophysical profile is indicated, it’s done in the third trimester.
Physicians and Midwives' clipboard illustration

In Office Labs

Many of the tests we do that you can read about in common tests during pregnancy involve lab tests. We process many of those labs in our offices so we can get results to you faster.

Largest Private Midwifery Practice in the Area

North Shore Associates in Gynecology and Obstetrics also has the largest private Midwifery group in the area. Patients in Wilmette, Glenview, Evanston, Chicago, Skokie, Winnetka, Glencoe, Northbrook, and many other communities seek out our midwives for the attentive care they offer. Our midwives see patients throughout their pregnancy and provide one-on-one care in labor delivery and beyond. From admission in labor to discharge, midwife patients enjoy a personal experience with minimal intervention and as natural a birth experience as possible.

Our midwives have had consistently excellent outcomes over the last 15 years, including single-digit c-section rates, low epidural usage, and overall superior patient satisfaction.

Do you have questions about our Midwifery Practice or would like to learn more? Please visit our FAQ’s to find answers to some of the most questions we get asked.


As many of you know Dr. Jean Ruth is leaving NSAGO to make a new beginning in the great Pacific Northwest – she and her family will move to Spokane, Washington later this month.  She has been with us for 3 ½ years and has done an incredible job working with our providers, staff, and especially, the growing patient base she has served. The patient feedback we have received, both in person and with her on-line reviews inform us that she is truly a special doctor. We will all miss Jean and wish her all the best.


E Perelman MD NSAGOThe rest of the NSAGO family will continue to accommodate and care for Dr. Ruth’s patients. Dr. Liz Perelman joined us last year and has become an integral team member and excellent care provider for our patients.  She is available to see patients at our Wilmette and Glenview locations. Likewise Drs. Goodwin, Johnson and Saleh are happy to see patients for ongoing pregnancy care and gynecology visits. New patients are also welcome so feel free to refer friends and relatives.


We are also very happy to welcome Imaan Ansari, MD, who will join NSAGO in August. Dr. Ansari grew up in the south suburbs of Chicago and graduated Magna Cum Laude from the University of Illinois, Champaign-Urbana. She attended the Medical College of Wisconsin in Milwaukee and then returned to Chicago for Ob-Gyn residency training at Advocate Illinois Masonic Medical Center. We have been very happy to get to know Imaan as a kind and talented physician with superb credentials and a work ethic to match. She will assume Dr. Ruth’s schedule and will have hours in Wilmette and Glenview.