Mortimer J. Strong, DO

Primary Care Doctor in Philadelphia, PA

Born and raised in Brooklyn, New York, I wanted to be a physician since childhood. My dad and two older brothers were already in the medical profession, and I wanted to follow in their footsteps

Soon after I began medical school, I quickly developed a passion for primary care internal medicine. One of my goals has always been to help patients define themselves by their hopes, dreams, passions, and desires rather than by their medical conditions

As a clinician at NSIM, I try to make sure that each of my patients maintains a positive outlook.

With over 35 years of experience treating patients, I have thankfully been able to develop long-standing devoted relationships with many of them.

I have been married for 45 years to my delightful wife Sharon and have two grown children and three grandchildren who I love spending time with. In my spare time, I enjoy Going to the beach, swimming, physical fitness, as well as Talmudic And biblical studies.

Call to Schedule an Appointment with Dr. Strong!

(215) 440-8681

COVID-19 Testing & Resources

We have seen a surge of COVID-19 over the past several weeks.

If you have symptoms of COVID-19 or were exposed to someone with COVID-19 and you are not sure what to do, please call us to schedule a telehealth appointment with one of our providers. We can discuss your individual situation and give specific recommendations.

We want to remind everyone that our office is NOT open for walk-in appointments or COVID-19 testing.

Please ask our staff about options for receiving testing orders or other paperwork. Often times we can email these documents and save you a trip to the office!

Here are some resources for COVID testing in our area. Please note that some testing locations require a doctor’s order.

Please refer to the CDC for the most up to date information about COVID-19 symptoms and exposure:

(215) 440-8681  | COVID-19 Vaccine Registration