Welcome to Primary Care Associates- PCA

PCA provides compassionate, comprehensive medical care to Infants, Children, Teens, Adults and Seniors using evidence based medicine and shared decision making to keep you and your family healthy. We're glad you've chosen us as your medical home!

Please take a few moments to read through our website to get a better feel for Primary Care Associates' capabilities and services. Our website provides you with the important background about our providers , staff , office hours , payment policies , maps and directions to our office in the Berwyn Depot District, additional services available within our office setting, and patient education.

We know how hectic life can be and are committed to making our practice convenient and accessible for you and your family. We want you to feel confident that when you choose PCA as your medical home; you're working with professionals who are qualified, experienced, and caring. We do this by equipping you with the support and resources you need to make the most educated decisions about you or your child's healthcare.

First time patients should call our office at 708-484-0042 to schedule your first visit. If you are a current patient, please use our HIPAA compliant Web Portal to communicate with your physician or our office staff.

We want to thank you for choosing Primary Care Associates for your medical care and welcome you to our practice. We can assure you that you’ll feel confident in our ability to meet and exceed all of your expectations.

Primary Care Associates (PCA) is comprised of six physicians. Drs. Brad Wainer , Nejat Destani , Michael Gershberg, Matthew Hsieh and Dr. Nadia Momin specialize in Family Medicine. Dr. Lori Weiss and Dr. Nathalie Akl specialize in Pediatrics. All of the Physicians are Board Certified in their specialties and are on staff at both MacNeal Hospital and LaGrange Hospital. Dr Weiss is also affiliated with Lurie Childrens's Hospital (formerly Children’s Memorial Hospital.) Dr. Brad Wainer is also Board Certified by the American Board of Addiction Medicine.

Meet Our Providers

  • Dr.
    Brad Wainer

    Dr. Wainer graduated from Midwestern University in 1983. He completed his Family Medicine Residency at MacNeal Hospital in 1986, where he was also the Chief Resident. He became Board Certified in by the American Board of Family Medicine 1986 and continues his recertification on a regular basis. He is also a board-certified in Addiction Medicine.

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  • Dr.
    Michael Gershberg

    Dr. Michael Gershberg graduated from Northwestern University and earned his medical degree from University of Illinois at Chicago.  He completed a residency in Family Medicine at St. Joseph Hospital where he served as chief resident, and joined Primary Care Associates in 2001.  In addition to caring for his patients, Dr Gershberg enjoys precepting medical students from University of Chicago where he holds a post of clinical assistant professor.

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  • Dr.
    Matt Hsieh

    Dr. Matthew Hsieh (pronounced 'shay') joined Primary Care Associates in 2001 after completing his Family Medicine Residency at West Suburban Medical Center. 

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  • Dr.
    Nejat Destani

    I'd Like to introduce myself, I’m Dr. Destani. I’m one of the Family Medicine Practitioners at Primary Care Associates. Since the age of three, It’s been a lifelong dream to help people. I was able to achieve that goal by becoming a physician. I enjoy seeing patients from newborn all the way to geriatric. When I have free time, I like to spend it with my family which includes my wife, four children, two daughter-in-law’s and four grandchildren.

  • Dr.
    Lori Weiss

    Dr. Weiss, as a general pediatrician at Primary Care Associates since 2002, sees children from birth until 19 years of age. She believes that as your child’s physician, she should act as an advisor and advocate for your child’s physical and emotional development. The most gratifying aspect of pediatrics for her is to watch young infants and toddlers grow and mature throughout their childhood and adolescence. She is an experienced pediatrician who has been practicing in the Western Suburbs since 1989.  Dr. Weiss’ Pediatric Residency and Chief Residency training was at the former Children’s Memorial Hospital, now Lurie Children’s Hospital in Chicago, IL.

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  • Dr.
    Nadia Momin

     Dr. Nadia Momin joined Primary Care Associates in July of 2019 as a board certified family physician. She grew up in sunny South Florida and received her medical degree from St. Matthew’s University School of Medicine.

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  • DR.

    Dr. Nathalie AKL will be joining Primary Care Associates in January 2023 as a Board-Certified Pediatrician. She grew up in Beirut, Lebanon where she graduated from medical school in 2007 before coming to the United States for her residency.

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Regular Office Hours


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-4:00 pm


8:00 am-1:00 pm