Healthcare specialist

Dr. Hi Sim, MD

Internist

251 Lewis Lane
Suite 201
Havre De Grace, MD 21078

+2 more locations

Overall rating

Top reviews

I have experienced very satisfactory care from Doctor Sim for many years he genuinely shows concern about your health and well being. He is so dedicated to his patients that he decided to be here for each and everyone of us evenShow more postponing his Retirement. Kudos to you Doctor Sim and thank you.

Anne G • June 09, 2026

Dr Sim listens to your health problems & after asking you questions, he will often his opinion on your complaints. Then you can still ask questions or if he has answered your complaints then you will be satisfied with his opShow moreinions on your health. He is always open to your questions.

Joyce T • June 26, 2026

Read more reviews
calendar icon

Online appointment booking not available at this location.

See 2 more locations

Got questions for
Dr. Hi Sim, MD?


Locations (3)

Union Medical Clinic

251 Lewis Lane
Suite 201
Havre De Grace, MD, 21078

501 S Union Avenue
Havre De Grace, MD, 21078

1881 Telegraph Road
Rising Sun, MD, 21911


More About Dr. Hi Sim, MD

Practice

Union Medical Clinic

Specialties

NPI Number

1659320505

Provider's Gender

Male


Background and Education

Years practicing

30.0 years


Reviews

4.97
702 Reviews

My visit was fine as usual.

Stephanie A • July 04, 2026

Best ever

James C • July 02, 2026

Doctor Sim always very friendly and concerned patients.

Mary F • July 02, 2026

Excellent yearly physical appt! Thx to the entire staff for making it a comfortable experience.

Michael H • June 30, 2026

Dr. Sim has an amazing bedside manner. He is personable and truly concerned about your health. His wisdom and dedication to his craft gives a patient comfort while in his care.

Gary K • June 30, 2026

Everyone so friendly.

Lynn L • June 30, 2026

I am and always will be grateful to have Dr. Simmons as my doctor. He always shows the utmost compassion and always makes me feel like a I’m the only patient even though he has thousands. He truly listen with his heart.

Christine L • June 30, 2026

Listened to my problem, reacted to my problem, gave me sense of relief. Asked if I needed prescriptions refilled. We talked about my husband. Complimented me on my choice for echo. Great doctor. Old school.

Jeanette M • June 30, 2026

Dr. Sim continues to take great care of me 🎈😊

Pamela C • June 26, 2026

Dr Sim listens to your health problems & after asking you questions, he will often his opinion on your complaints. Then you can still ask questions or if he has answered your complaints then you will be satisfied with his opinions on your health. He is always open to your questions.

Joyce T • June 26, 2026

Thank you Dr Sim 🙏🙏🙏

Catherine T • June 25, 2026

I'm a longtime patient of Dr Sim and I wouldn't want any other doctor taking care of me.

Curtis J • June 22, 2026

Always efficient and caring !

Lisa M • June 17, 2026

Love Dr Sim. Will be so sorry to see him retire

Wayne N • June 16, 2026

Great visit with Dr.Sim, as always..Medical staff excellent and very helpful.. A+

Kathi S • June 15, 2026

Dr. Sim is the best.

Catherine S • June 13, 2026

It's always a pleasure to get great care from Dr.Sim🌹🙏🏾. I in good health

Pamela C • June 12, 2026

Dr. Sim is always polite, professional, and a pleasure to be around!

Ryan L • June 11, 2026

He cares about his people , & he explains everything , he is honest .

Lois Y • June 11, 2026

Outstanding service as usual.

Betty H • June 10, 2026

Dr. Sim is great! He listens. He pays attention. He will help you get/keep your heath on track. I’m glad I found him!

Gayle B • June 10, 2026

Hartford County Best Doctor !!

Se C • June 10, 2026

I have experienced very satisfactory care from Doctor Sim for many years he genuinely shows concern about your health and well being. He is so dedicated to his patients that he decided to be here for each and everyone of us even postponing his Retirement. Kudos to you Doctor Sim and thank you.

Anne G • June 09, 2026

Just love Dr Sim! He's caring, personable, patient and genuine.

Jean C • June 09, 2026

I love Dr Sim. He cares! And the level of care is unbeatable.

John R • June 05, 2026

Dr Sim is a very caring and compassionate Doctor and is a asset to our community.

Bruce K • June 04, 2026

Simply the best! Great to be known by your doctor!

Matthew L • June 04, 2026

Excellent Doctor, has been my Doctor for many years

Garrett L • June 04, 2026

He's been my doctor for over 36yrs

Guy K • June 03, 2026

Dr Sim has been my PCP for over 20 yrs. He provides excellent care.

Jane M • June 03, 2026

View more reviews

Are you Dr. Hi Sim, MD?

Manage your profile to get more exposure and incoming appointments.