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Justin Hahn

Justin Hahn, DO

Internal Medicine

Accepting New Patients
Online Booking
4.9 of 5 stars330 ratings, 113 reviews

Highlights

Languages

  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins Community Physicians

About Justin Hahn

Background

Justin Hahn, D.O., is an internal medicine physician with Johns Hopkins Community Physicians. Dr. Hahn received his undergraduate degree from University of Maryland, College Park. He then went on to receive his medical degree from Nova Southeastern University College of Osteopathic Medicine in Fort Lauderdale, Florida. Shortly after, Dr. Hahn moved back north where he completed his internal medicine residency training at Cooper University Hospital in Camden, New Jersey.  

Dr. Hahn is a Howard County native and grew up in Ellicott City. In his free time, he enjoys trying different restaurants, traveling, basketball and golf.

 

Locations

  1. Johns Hopkins Community Physicians - Rockville
    • 14955 Shady Grove Road, Suite 100, Rockville, MD 20850

    Expertise

    Education

    Cooper University Hospital

    Residency, Internal Medicine, 2023

    Nova Southeastern College of Osteopathic Medicine

    Medical Education, DO, 2020

    Board Certifications

    Internal Medicine

    American Board of Internal Medicine, 2023

    Insurance

    Johns Hopkins providers accept various commercial health insurance plans. However, they may not be included in all of an insurance company's plans or offerings. This may include Exchange, Medicaid, Medicare, and specific limited benefit plans. Exceptions to participation also exist based on your employer’s benefits package and the provider's location or specialty. Please contact your insurer directly to make sure your doctor is covered by your plan. For more details, please review our Insurance Information.
    Search plans
    • Aetna
    • CareFirst
    • Cigna
    • First Health
    • Geisinger Health Plan
    • HealthSmart/Accel
    • Humana
    • Johns Hopkins Health Plans
    • MultiPlan
    • Pennsylvania's Preferred Health Networks (PPHN)
    • Point Comfort Underwriters
    • Private Healthcare Systems (PHCS)
    • UnitedHealthcare

    Ratings & Reviews

    4.9 out of 5

    330 ratings, 113 reviews

    The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

    Overall Rating by Patient
    Average provider Overall Rating by Patient rating 4.8 out of 5 stars
    Provider Listened Carefully
    Average provider Provider Listened Carefully rating 4.9 out of 5 stars
    Provider Explained Things Clearly
    Average provider Provider Explained Things Clearly rating 5 out of 5 stars
    Provider Knew Medical History
    Average provider Provider Knew Medical History rating 4.9 out of 5 stars
    Provider Showed Respect
    Average provider Provider Showed Respect rating 5 out of 5 stars
    Provider Spent Enough Time
    Average provider Provider Spent Enough Time rating 5 out of 5 stars
    Search reviews
      5 out of 5 stars
      Reviewed on 2/25/2025

      Great

      5 out of 5 stars
      Reviewed on 2/18/2025

      Great experience

      5 out of 5 stars
      Reviewed on 2/14/2025

      Overalls he is one of the best providers I had

      5 out of 5 stars
      Reviewed on 2/14/2025

      Dr Hahn is very friendly, professional, and kind. He takes the time to explain things and gives me the time to ask questions. I'm pleased that our visits are discussions about my health, things to be looking forward to in the future, the reasons for various tests. I also value that he accepts the fact that I have some opinions on issues/recommendations, and he is willing to continue the conversation. He is always very prompt in updating me on test results, which I also appreciate.

      5 out of 5 stars
      Reviewed on 2/12/2025

      Good listener and promptly addressed my concerns.

      5 out of 5 stars
      Reviewed on 2/10/2025

      Dr Hahn is an excellent PCP.

      5 out of 5 stars
      Reviewed on 2/7/2025

      Dr Hahn is an outstanding physician and is on top of any health issues I may have. He is communicative, informative and caring.

      5 out of 5 stars
      Reviewed on 2/7/2025

      Great

      5 out of 5 stars
      Reviewed on 2/4/2025

      I saw Dr. Justin Hahn because [staff] was not available and I needed a pre-op appointment for my cataract. He was very comforting to me . I had an excellent contact with him.

      5 out of 5 stars
      Reviewed on 2/4/2025

      The communication was two way with Doctor Hahn , he fully understood my worries and had information about my health.

      5 out of 5 stars
      Reviewed on 2/4/2025

      Dr Hahn is first rate

      5 out of 5 stars
      Reviewed on 2/3/2025

      Justin is knowledgeable and pleasant

      5 out of 5 stars
      Reviewed on 1/28/2025

      Impressed with Dr.Hahn. He is a fine person, excellent physician.

      5 out of 5 stars
      Reviewed on 1/28/2025

      This was the first appointment searching for a new doctor after relocating to the area. Luckily, Dr. Hahn will be my new doctor

      5 out of 5 stars
      Reviewed on 1/28/2025

      I am a new patient and was very impressed with Dr. Hahn's knowledge , his thorough review of my records prior to my visit and the time he took with me to answer my questions. I was very happy that the needed blood work could be done on site and that I was able to schedule a needed follow-up appointment at check out.

      5 out of 5 stars
      Reviewed on 1/28/2025

      Made good decisions on medications I need to take

      5 out of 5 stars
      Reviewed on 1/27/2025

      Excellent person.

      5 out of 5 stars
      Reviewed on 1/22/2025

      Dr. Hahn provided excellent service listening to and answering my questions and providing recommendations when needed. Additionally, he ordered a new prescription to take care of one of my new health concerns. I am very happy that he is my primary care health provider.

      5 out of 5 stars
      Reviewed on 1/22/2025

      Justin Hahn is a very capable professional who has my trust and helps me confront my health concerns with confidence.

      5 out of 5 stars
      Reviewed on 1/22/2025

      I had a wonderful experience with Dr. Hahn. He patiently listened to all my concerns/questions, took his time answering my questions, and explained everything clearly. He also promptly followed up on my test results. His exceptional bedside manner truly made me feel cared for. I highly recommend him.

      5 out of 5 stars
      Reviewed on 1/21/2025

      My visit was specifically for ear ache. I was treated on site, provided info for OTC aids and given referral to ENT, I did not call the office. Very good care from Dr Hahn and the attending nurse who flushed my ear.

      5 out of 5 stars
      Reviewed on 1/15/2025

      Impressed with Dr. Hahn's review and knowledge of my medical history in preparation for meeting with me. Good conversations and exchanges.

      5 out of 5 stars
      Reviewed on 1/13/2025

      I was pleased to have switched over to Dr. Hahn. He was very informative and explained everything before him from my past records and what he needed for me to do while I am in his care.

      5 out of 5 stars
      Reviewed on 1/10/2025

      Dr. Hahn was very courteous and provided me with very thorough explanations about my health. He also mapped out all of the treatments and preventative care that I should be following for the next several months.

      5 out of 5 stars
      Reviewed on 1/8/2025

      Very Fortunate to have found Dr. Hahn !

      5 out of 5 stars
      Reviewed on 1/8/2025

      Great listener and communication during appointments. He is empathetic and patient with all my concerns which makes the appointments easy and stress free.

      5 out of 5 stars
      Reviewed on 1/3/2025

      Dr Hahn is great! Glad my wife found him last year after our older primary doc retired.

      5 out of 5 stars
      Reviewed on 1/3/2025

      Dr. Justin Hahn is top of the line kind of a doctor.He listens attentively, offers suggestions.Takes time with his patients. Very happy I was able to get him as my physician.

      5 out of 5 stars
      Reviewed on 12/31/2024

      Dr HAHN IS EXCELLENT.

      5 out of 5 stars
      Reviewed on 12/31/2024

      Very good and helpful and listens and takes time.

      5 out of 5 stars
      Reviewed on 12/31/2024

      The Provider was outstanding, is attentive and is thorough in his check up.

      5 out of 5 stars
      Reviewed on 12/31/2024

      Justin Hahn is outstanding!

      5 out of 5 stars
      Reviewed on 12/27/2024

      Dr. Hahn is a very considerate doctor and I am pleased that he is my primary care physician.

      5 out of 5 stars
      Reviewed on 12/20/2024

      Dr Hahn was very patient, easy to talk to, and willing to listen to all my comments and concerns.

      5 out of 5 stars
      Reviewed on 12/16/2024

      Dr. Hahn is the best. Very kind, friendly, thoughtful, professional and competent.

      5 out of 5 stars
      Reviewed on 12/11/2024

      Everything ran smoothly

      5 out of 5 stars
      Reviewed on 12/11/2024

      My provider is a very empathetic and supportive practitioner. I look forward to my next appointment.

      5 out of 5 stars
      Reviewed on 12/9/2024

      Great, excellent doctor

      5 out of 5 stars
      Reviewed on 12/2/2024

      I always feel that Dr Hahn does a great job of viewing the whole picture of my health and in getting my input/buy-in. Approachable and easy to talk to about concerns.

      5 out of 5 stars
      Reviewed on 12/2/2024

      I was very pleased with my first visit with this provider, very friendly and professional. Thank you so much! :)

      5 out of 5 stars
      Reviewed on 11/26/2024

      Thank you so much for your help and support

      5 out of 5 stars
      Reviewed on 11/25/2024

      I transferred my care to this office from the JHCP office in downtown Bethesda. I was very impressed with the amount of time Dr Hahn spent with me as well as his responsiveness since my visit through the portal. He interpreted my lab results immediately and prescribed new medications right away and got my next visit scheduled already. Very great care.

      5 out of 5 stars
      Reviewed on 11/20/2024

      This was an initial "new patient visit." Dr. Hahn was well informed about my medical history, immediately understand my medical concerns, and focused on the most appropriate plan of care.

      5 out of 5 stars
      Reviewed on 11/19/2024

      Easy to talk to. CompetentNot.complete exam

      5 out of 5 stars
      Reviewed on 11/18/2024

      Dr. Justin is an excellent doctor

      5 out of 5 stars
      Reviewed on 11/13/2024

      This was my first visit, as a new patient, because my previous PCP had left the practice. I was very well impressed and look forward to having Dr. Hahn as my PCP from now on. As a minor matter, I very much appreciated his willingness to schedule my blood test after our visit, so I did not need to have a separate, additional appointment.

      5 out of 5 stars
      Reviewed on 11/11/2024

      Dr. Hahn relayed a tough to hear diagnosis with kindness, empathy, and thoroughness and answered every concerned questions I had with a refined expertise. I feel incredibly fortunate to have him as my doctor to help navigate this new condition and know that It will be treated to the best possible extent.

      5 out of 5 stars
      Reviewed on 11/11/2024

      Due diligence shown toward patient

      5 out of 5 stars
      Reviewed on 10/23/2024

      Dr Hahn is great.

      5 out of 5 stars
      Reviewed on 10/15/2024

      He reminded me about not using nsaids prior to surgery due to the possibility of bleeding. I know that, but had forgotten it. I appreciated the reminder. He also made a number of statements that made me feel less anxious about my upcoming cataract surgery.

      5 out of 5 stars
      Reviewed on 10/15/2024

      He was very attentive and pleasant

      5 out of 5 stars
      Reviewed on 10/14/2024

      Very competent, easy to talk to about issues, understanding.

      5 out of 5 stars
      Reviewed on 10/11/2024

      Excellent

      5 out of 5 stars
      Reviewed on 10/9/2024

      Listening and providing medical advice. I felt at ease talking to dr Hahn. This was my first visit and hopefully will continue receiving care from this provider

      5 out of 5 stars
      Reviewed on 10/9/2024

      Very helpful, knowledgeable and articulate. Showed attention to my questions and concerns.

      5 out of 5 stars
      Reviewed on 10/2/2024

      Dr Hahn is very compassionate and caring

      5 out of 5 stars
      Reviewed on 10/1/2024

      Dr. Hahn is very thorough and I appreciate his desire to ensure I am cared for properly.

      5 out of 5 stars
      Reviewed on 9/25/2024

      Provider was great

      5 out of 5 stars
      Reviewed on 9/24/2024

      First appointment. Listened carefully and comprehended my medical situation to a great degree. Many follow-up questions to statements I made. I believe Dr. Hahn really understood many of the issues which I face. I am very pleased with the attention and suggestions.

      5 out of 5 stars
      Reviewed on 9/24/2024

      Good visit.

      5 out of 5 stars
      Reviewed on 9/23/2024

      Of the many doctors I've had at your practice Dr Hahn is far the best. He doesn't rush me, he listens and addresses my concerns.

      5 out of 5 stars
      Reviewed on 9/18/2024

      Dr Hahn provided outstanding care in a warm and sympathetic manner.

      5 out of 5 stars
      Reviewed on 9/18/2024

      Dr. Hahn was extremely nice, patient, and informative. He gave me much more time than any other doctor has in the area which I greatly appreciate! The nurses took me back as soon as I arrived, and my appointment actually started an hair early, which I loved. I would definitely recommend Dr. Hahn.

      5 out of 5 stars
      Reviewed on 9/18/2024

      Dr. Hahn is very knowledgeable and has an excellent bedside manner. He listens to my concerns and provides attainable solutions.

      5 out of 5 stars
      Reviewed on 9/18/2024

      Dr Hahn is very concerned and listening about my health and very specific to tell me what to do

      5 out of 5 stars
      Reviewed on 9/16/2024

      Dr Hahn is very concerned and knowledgeable.

      5 out of 5 stars
      Reviewed on 9/11/2024

      Thorough, respectful, caring

      5 out of 5 stars
      Reviewed on 9/10/2024

      I'm very satisfied having Dr. Hahn as my PCP. He's taking good care of myself and I'm improving a lot since he's taking care of me.

      5 out of 5 stars
      Reviewed on 9/9/2024

      Dr. Hahn is smart, compassionate, organized, and helpful. He saved my life by insuring that I get proper tests.

      5 out of 5 stars
      Reviewed on 9/6/2024

      Very professional,good bedside manner, active listener and humble

      5 out of 5 stars
      Reviewed on 9/4/2024

      My second visit with Dr. Hahn, and he's been very supportive and helpful. Very caring, kind, courteous and easy to talk. I like that he is very understanding and takes his time with me.

      5 out of 5 stars
      Reviewed on 9/4/2024

      This was my very first visit to this office in Shady Grove with Dr. Hahn. He is very professional In taking care of of his patient. He spent his time in explaining the purpose of my visit and went over the overall plan for my health care. He showed his respect for me and I felt at ease when I am communicating with him.

      5 out of 5 stars
      Reviewed on 8/19/2024

      Excellent consultation, arranged very quickly

      5 out of 5 stars
      Reviewed on 8/14/2024

      Dr Hahn is a very good doctor

      5 out of 5 stars
      Reviewed on 8/12/2024

      Dr Hahn is my new primary care physician. Our meeting at Suburban was our 1st. I found him courteous, friendly and attentive.

      5 out of 5 stars
      Reviewed on 8/9/2024

      Dr Hahn was friendly and professional. I was impressed to see he had reviewed my medical history helping him to make a more accurate assessment of my current medical situation.

      5 out of 5 stars
      Reviewed on 8/9/2024

      My first visit with Dr Hahn. Very courteous and knowledgeable

      5 out of 5 stars
      Reviewed on 8/5/2024

      Routine check-up; physician and nurses were all very professional, attentive, and knowledgeable

      5 out of 5 stars
      Reviewed on 8/5/2024

      Dr. Hahn was very respectful and thorough.

      4 out of 5 stars
      Reviewed on 8/5/2024

      He is an excellent doctor and I really like him

      5 out of 5 stars
      Reviewed on 7/26/2024

      We, my wife & I, have recently moved and this was our first appt with our "provider." He did a good job in absorbing quickly and accurately our medical histories.

      5 out of 5 stars
      Reviewed on 7/22/2024

      Helpful, considerate, efficient, pleasant

      5 out of 5 stars
      Reviewed on 7/16/2024

      Very professional and courteous

      5 out of 5 stars
      Reviewed on 7/15/2024

      The best!!

      5 out of 5 stars
      Reviewed on 7/12/2024

      Dr. Hahn listens well to what his patients want to talk about, and also explains the possible consequences of failing to proceed as he suggests. However, he does so in a very respectful manner. He welcomes patient questions and input.

      5 out of 5 stars
      Reviewed on 7/10/2024

      Very professional, listens to all concerns and tried to provide solutions. Even through language barrier, he was patient and gave us time to understand and interpret without feeling rushed or uncomfortable. Unlike other providers in the past, he seemed to care about the goals and maintaining good health and not just prescribing multiple pills. Great doctor and would recommend to others!

      5 out of 5 stars
      Reviewed on 7/10/2024

      Excellent clinician, listens carefully, remembers details from months ago, explains findings well; I could not ask for a better internist

      5 out of 5 stars
      Reviewed on 7/8/2024

      Dr Hahn listened to me and answered my questions thoughtfully; he had my lab results in hand and was familiar with my chart (a bit surprising since I am new to the practice and this was only my second visit).

      5 out of 5 stars
      Reviewed on 7/2/2024

      It was my first time visiting dr. Hahn. Visit started on time and staffs were professional and courteous. Dr Hahn spent time going over my health and scheduled bloodwork and followed up with results and what I need to do.

      5 out of 5 stars
      Reviewed on 7/2/2024

      Dr, Hahn was very knowledgeable and explain my problem very well .

      5 out of 5 stars
      Reviewed on 6/28/2024

      Dr Justin Hahn was very friendly and professional and clearly explained my next steps for testing and followup.

      5 out of 5 stars
      Reviewed on 6/24/2024

      Dr Hahn is an excellent communicator. Caring and knowledgable.

      5 out of 5 stars
      Reviewed on 6/19/2024

      Dr. Hahn is very knowledgeable and courteous and answered all my questions.

      5 out of 5 stars
      Reviewed on 6/18/2024

      Very thorough, thoughtful and professional. I was satisfied with the advice about how to deal with my concern.

      5 out of 5 stars
      Reviewed on 6/17/2024

      Dr. Hahn was attentive, engaged, and very willing to discuss my meds, medical issues, and concerns. I felt very comfortable in discussing my medical history and current problems. Front office and nurses were pleasant and efficient.

      5 out of 5 stars
      Reviewed on 6/17/2024

      I am happy to be here and will continue

      5 out of 5 stars
      Reviewed on 6/14/2024

      Have their patient for many years always satisfy either care and service

      5 out of 5 stars
      Reviewed on 6/12/2024

      It was an excellent visit. Thank you.

      5 out of 5 stars
      Reviewed on 6/11/2024

      Kind, very Detailed and Professional, Outstanding, I also recommended my wife to Dr Hahn, as her previous primary care doctor just retired recently.

      5 out of 5 stars
      Reviewed on 5/29/2024

      Dr Hahn was very attentive and responsive.

      5 out of 5 stars
      Reviewed on 5/21/2024

      He was wonderful! I was very impressed with his concerns for my condition. He gave me an exam and referral for more studies.

      5 out of 5 stars
      Reviewed on 5/10/2024

      Very kind best ever I met

      5 out of 5 stars
      Reviewed on 5/8/2024

      Dr. Hahn was very professional and helpful.

      5 out of 5 stars
      Reviewed on 5/8/2024

      It was a wonderful experience.

      5 out of 5 stars
      Reviewed on 5/7/2024

      Justin is thorough, listens and asks questions so he can respond appropriately. This gives me confidence in his directions. I feel very comfortable with him and how he assists me with my health.

      5 out of 5 stars
      Reviewed on 5/6/2024

      Satisfied!!

      5 out of 5 stars
      Reviewed on 5/6/2024

      Dr Hamm was fabulous. He took the time to review and discuss treatment options with me.

      5 out of 5 stars
      Reviewed on 4/29/2024

      Dr. Hahn was an excellent physician for my primary care needs. He was professional, respectful, competent and personable. He addressed all of my needs in one visit without making me feel like I am wasting their time. I am very glad I have switched my PCP to him.

      5 out of 5 stars
      Reviewed on 4/29/2024

      Everything was A-OK.

      5 out of 5 stars
      Reviewed on 4/26/2024

      Dr. Hahn was diligent, thoughtful and made reasonable and appropriate suggestions and recommendations. This was my first visit with him as I am switching PCP's.

      5 out of 5 stars
      Reviewed on 4/26/2024

      Very professional

      5 out of 5 stars
      Reviewed on 4/22/2024

      He researched my medical history, seemed to be well informed, seemed concened for my health, and was informative and articulate.

      5 out of 5 stars
      Reviewed on 4/17/2024

      Dr. Hahn was very good at answering my questions and provided a lot of information for me. I'm very pleased!