What patients are saying
Overall rating
4.78
Average wait time
4.65
Bedside manner
5.00
“Detailed, honest, and was genuine. Wanted to have all of the information before providing or suggesting next steps. Explained everything in simple terms and why he was choosing his course of action. Very patient in listening to any and all questions. Great Doctor!”
david L.January 28, 2026
“Wonderful first visit. Dr. Kassis is friendly, thorough and makes one feel welcome and safe.
I would recommend him without any reservation.
"Go Dr. McCoy!"”
John H.August 12, 2025
About Dr. Leonard Kassis
*This practice requires credit card information to be input into the system in order to be seen.
*We must be your PCP in order to be seen.
Hello, I'm Dr. Leonard Kassis, a dedicated physician committed to your well-being. I earned my Doctor of Medicine from Marshall University and completed my residency in Internal Medicine at MedStar Union Memorial Hospital. I also hold a Bachelor's degree from the University of Maryland. With a focus on internal medicine, occupational health, and urgent care, I bring a wealth of knowledge and experience to guide you on your journey toward better health.
My expertise covers key areas within the medical field:
With a deep understanding of internal health and its complexities, I provide comprehensive care tailored to your individual needs.
I specialize in occupational health, addressing the unique medical requirements and challenges of the workplace.
During medical urgencies, I provide prompt and compassionate care to safeguard your health and well-being.
At the core of my practice is a patient-centric philosophy reflecting my commitment to exceptional healthcare. I respect every patient and am dedicated to providing the highest level of care. I believe in active listening, taking time to truly understand your concerns and needs during each visit. Your trust and comfort are essential to me.
My top health advice is simple yet powerful: "Do your best to live a balanced life." Striving for balance can significantly reduce your risk of illness, even at younger ages. Prioritizing physical activity, mental well-being, and a wholesome diet supports a healthier, happier life. As your healthcare partner, I'm here to guide you toward informed choices that promote overall wellness.
Thank you for considering me as your healthcare provider. I look forward to joining you on your journey to health.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Medicare
UnitedHealthcare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
High cholesterol
Chronic high blood pressure
Enlarged prostate
Underactive thyroid
Lower back pain
Upper respiratory Infection (URI)
High cholesterol
Chronic high blood pressure
Enlarged prostate
Underactive thyroid
Office location & hours
Hours
Monday:
8:00am - 8:00pm
Tuesday:
8:00am - 8:00pm
Wednesday:
8:00am - 8:00pm
Thursday:
8:00am - 8:00pm
Friday:
8:00am - 8:00pm
Saturday:
8:00am - 4:00pm
Sunday:
8:00am - 4:00pm
Education and background
Practice names
Education and training
- Medical School - Marshall University, Doctor of Medicine
- University of Maryland (Bachelor's)
- MedStar Union Memorial Hospital, Residency in Internal Medicine
Languages spoken
- English
- Arabic
Provider's gender
Male
NPI number
1659547818
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.78
Wait time
4.65
Bedside manner
5.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
90 reviews
Most relevant
Very friendly and helpful staff. Very clean facility and Doctor was very nice and took the time to answer all my questions
August 26, 2024Manisha P.Verified patient
First time visit but both physician and staff were friendly and efficient
August 6, 2025Allison L.Verified patient
The wait time was great! Front desk staff and nurse were also very pleasant.
May 29, 2025Ryan S.Verified patient
Dr Kassis did a great job. 10/10 would recommend again.
October 23, 2024Christopher S.Verified patient
Detailed, honest, and was genuine. Wanted to have all of the information before providing or suggesting next steps. Explained everything in simple terms and why he was choosing his course of action. Very patient in listening to any and all questions. Great Doctor!
January 28, 2026david L.Verified patient
Doctor Kassis is great and very professional
October 7, 2025PHILIP H.Verified patient
Wonderful first visit. Dr. Kassis is friendly, thorough and makes one feel welcome and safe.
I would recommend him without any reservation.
"Go Dr. McCoy!"
August 12, 2025John H.Verified patient
As a new patient the staff was very pleasant and friendly. For awhile I've searched around and bounced a couple of Dr's. just to find a doctor who actually cared about people and his job. Dr. Kassis didn't rushed me out the door, he looked in my eyes and payed close attention to my concerns. He gathered as much information and arranged for a thorough continuation visit. From speaking to me, with hands on and down to even handling paperworks, he was there, Dr. Kassis was actually present! Haven't found a more thorough Doctor like that in years. It actually brought my wife to tears. Dr. Kassis is not just someone collecting his paycheck, he's a real caring Doctor and most of all, he's as genuine as a person could be. Im really glad I found this place!
August 11, 2025Candido M.Verified patient
Great doctor and the office staff was excellent as well. It was great that I was able to get in right away and the doctor quickly and accurately diagnosed my issue. Five stars! Thank you for such great care.
July 8, 2025Geoffrey C.Verified patient
Great overall experience. Would highly recommend
Less than 1 year agoHASSAN T.Verified patient
Friendly knowledgeable staff. Nice facility.
April 25, 2025Brian B.Verified patient
This was possibly one of the best doctors I have ever met in my life. Dr.Kassis is so amazing and this was just my first time seeing him. He is super attentive and kind, he is knowledgeable about so many things and knows just what to say to a worried patient ! I walked out of the office feeling confident that I would be alright. I trust him with my life now and so should you.
February 11, 2025Eruka S.Verified patient
Seeing Dr. Kassis was a very pleasant experience. Even though it seemed his office was busy, he took the time to probe and understand the full scope of what my issues were and our appointment went a long way to helping me understand my situation. Even though he felt there was no serious physiological issue occurring, he still referred me to get scans to verify. I appreciate that as some doctors I have seen have dismissed the idea outright.
November 21, 2024Andrew W.Verified patient
Great experience, highly recommend.
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How soon can I make an appointment with Dr. Leonard Kassis?
Generally, Dr. Leonard Kassis has appointments available on Zocdoc within 1 week. You can see Dr. Kassis's earliest availability on Zocdoc and make an appointment online.
Is Dr. Leonard Kassis accepting new patients?
Dr. Leonard Kassis generally accepts new patients on Zocdoc. You can see Dr. Kassis's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Leonard Kassis accept my insurance?
Choose your insurance plan to verify if Dr. Kassis is in-network.
Can I make an appointment with Dr. Leonard Kassis online?
Yes, you can make an appointment online with Dr. Kassis using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Leonard Kassis work with?
Dr. Leonard Kassis works with truHealthNow.
Where is Dr. Leonard Kassis's office located?
Dr. Leonard Kassis's office is located at 12321 Middlebrook Rd, Germantown, MD 20874.
What are common reasons for patients to see Dr. Leonard Kassis?
Dr. Leonard Kassis frequently sees patients for Annual Physical, Arthritis, Illness, Sleep Problems, and Sports Injury. You can see other visit reasons for Dr. Leonard Kassis on their profile.
What languages does Dr. Leonard Kassis speak?
Dr. Leonard Kassis speaks English and Arabic.
How do patients rate Dr. Leonard Kassis in reviews?
90 patients have reviewed Dr. Leonard Kassis. The overall rating for this doctor is 4.78/5. They have a 5/5 rating for bedside manner and a 4.65/5 rating for wait time. You can read individual reviews and ratings on their profile.