
Jonathan Caldera Colon, MD
Internal Medicine
Highlights
Johns Hopkins Affiliations:
- Johns Hopkins Community Physicians
About Jonathan Caldera Colon
Johns Hopkins Physician
Background
Jonathan Caldera Colon, M.D., is an internal medicine physician with Johns Hopkins Community Physicians. Dr. Colon's background is in emergency medicine and the prevention, diagnosis and treatment of HIV. In 2020, during the COVID-19 pandemic, he served with Doctors Without Borders in Puerto Rico. He has received honors for his community service work. In addition to his clinical experience, Dr. Colon spent many years as a teaching assistant.
Outside of his clinical practice, Dr. Colon enjoys boxing, traveling, reading, cooking and spending time outdoors. Dr. Colon’s native language is Spanish and he is fluent in English.
Locations
- Johns Hopkins Community Physicians - Hagerstown
- 12916 Conamar Drive, Suite 204, Hagerstown, MD 21742
- phone: 301-791-0600
- fax: 410-367-2023
Expertise
Education
Universidad Central Del Caribe School of Medicine
Residency, Internal Medicine, 2018University of Puerto Rico School of Medicine
Medical Education, General Practice, MD, 2013Insurance
- 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
363 ratings, 158 reviewsThe 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.
- 5 out of 5 starsReviewed on 4/21/2025
Great Doctor!
- 5 out of 5 starsReviewed on 3/21/2025
Jonathan Caldera Colon
- 5 out of 5 starsReviewed on 3/21/2025
Very good doctor. He speaks very softly, so I can't hear everything, but, he is very patient and kind.
- 5 out of 5 starsReviewed on 3/19/2025
Dr colon is a very thorough doctor. Asks questions. Thoughtful
- 5 out of 5 starsReviewed on 3/18/2025
Dr. Caldera is a little difficult to understand because he wears a mask and has a strong accent.
- 5 out of 5 starsReviewed on 3/14/2025
Very efficient, knowledgeable, and courteous.
- 5 out of 5 starsReviewed on 3/12/2025
I think my provider really cares and wants me to feel healthy
- 5 out of 5 starsReviewed on 3/11/2025
Excellent primary doctor, planning to be my bew primary doctor for me and my family
- 5 out of 5 starsReviewed on 2/24/2025
Very kind and thoughtful
- 5 out of 5 starsReviewed on 2/21/2025
Love love love Dr Caldera. Best doctor I have ever had!!! Very thorough and personable!
- 5 out of 5 starsReviewed on 2/10/2025
I felt like he really cared about my overall health condition.
- 5 out of 5 starsReviewed on 2/5/2025
Dr Caldera is a good communicator, who asks pertinent questions, empathetically listens to responses and ensures that his recommendations are understood and agreed to
- 5 out of 5 starsReviewed on 2/5/2025
One of the best I ever jad/
- 5 out of 5 starsReviewed on 2/5/2025
Very good
- 5 out of 5 starsReviewed on 1/31/2025
Detailed oriented, thorough, respectful, patient centered care. Good personal introduction for a first visit. Expressed commitment to excellence and described approach to care. Had reviewed records and also reconciled problem list and medications with me directly. Responded directly and immediately in follow up to lab result that needed attention with a detailed explanation of plan of care.
- 5 out of 5 starsReviewed on 1/30/2025
Excellent
- 5 out of 5 starsReviewed on 1/23/2025
Dr was personable and polite. He reviewed my recent issue throughly.
- 5 out of 5 starsReviewed on 1/22/2025
It was great to see a Doctor with extensive experience. Not a nurse practitioner. He was very thorough in going through my physical.
- 5 out of 5 starsReviewed on 1/21/2025
One of the finest doctors I have ever had to take car of me. Studies the record, asks questions, performs a thorough exam.
- 5 out of 5 starsReviewed on 1/16/2025
Very caring and easy to talk to.
- 5 out of 5 starsReviewed on 1/10/2025
Very satisfiied
- 4 out of 5 starsReviewed on 1/9/2025
Absolutely love Dr. Caldera! He goes over all blood work. And really listens. Also, explains very well.
- 5 out of 5 starsReviewed on 1/7/2025
Dr. Caldera is very attentive to my health. Very knowledgeable and very personable.
- 5 out of 5 starsReviewed on 1/3/2025
My provider is a wonderful person
- 5 out of 5 starsReviewed on 1/2/2025
Always a good experience
- 5 out of 5 starsReviewed on 12/27/2024
Great doctor
- 5 out of 5 starsReviewed on 12/26/2024
My provider is very knowledgeable. Also he listens and provides advice and information which is very helpful.
- 5 out of 5 starsReviewed on 12/24/2024
He is very thorough, friendly, and helpful
- 5 out of 5 starsReviewed on 12/19/2024
Very good!
- 5 out of 5 starsReviewed on 12/19/2024
Great experience! My doctor was very thorough. Great discussion about my health and how he would be there to help me through any questions or problems I may have in the future.
- 5 out of 5 starsReviewed on 12/18/2024
Dr Caldera is empathetic, knowledgeable and responsive. I was very upset during this visit due to a cancer scare and he was attentive and helpful.
- 5 out of 5 starsReviewed on 12/18/2024
Dr. Caldera is an excellent physician. I would highly recommend him and the Johns Hopkins practice.
- 5 out of 5 starsReviewed on 12/18/2024
I like Dr. CALDERA'S comprehension
- 5 out of 5 starsReviewed on 12/18/2024
Dr. Colon is a very kind, compassionate, well trained, thorough physician! He listens! He addressed every health concern. He gave me a comprehensive overview of the potential side effects of a new medication he prescribed and made a plan for follow-up to see how I was doing with the medication, He is so uplifting and encouraging! He is the best PCP I have ever had! I am very grateful for his care!
- 5 out of 5 starsReviewed on 12/16/2024
He is very thorough & answered all my questions follow up in September
- 5 out of 5 starsReviewed on 12/16/2024
Dr Caldera is an excellent! Doctor He cares about His patients. He takes time to listen and answer your questions. I highly recommend Dr Caldera to my family and friends.
- 5 out of 5 starsReviewed on 12/16/2024
J Caldera
- 5 out of 5 starsReviewed on 12/16/2024
Great doctor!
- 5 out of 5 starsReviewed on 12/13/2024
Very knowledgeable and courteous.
- 5 out of 5 starsReviewed on 12/13/2024
Jonathan is a great provider and someone I feel comfortable with talking about my health and taking the time to understand my concerns.
- 5 out of 5 starsReviewed on 12/12/2024
They did a good job
- 5 out of 5 starsReviewed on 12/11/2024
Everything was good.
- 5 out of 5 starsReviewed on 12/10/2024
Fantastic doctor. You got lucky
- 5 out of 5 starsReviewed on 12/5/2024
Very personable, listens to all concerns,
- 5 out of 5 starsReviewed on 12/5/2024
Very good doctor. My husband I think he is the best doctor.
- 5 out of 5 starsReviewed on 12/4/2024
This was my first visit with this provider. I was very impressed with the whole practice. I'm glad I chose this provider.
- 5 out of 5 starsReviewed on 12/3/2024
I always have a positive visit. Dr. Caldera is the best. His assistant was very helpful and considerate. I count my blessings.
- 5 out of 5 starsReviewed on 11/29/2024
Excellent Dr little hard to understand his accent
- 5 out of 5 starsReviewed on 11/18/2024
Very professional, knowledgeable and attentive. I appreciate his collaborative empathetic approach to care.
- 5 out of 5 starsReviewed on 11/18/2024
Dr. Caldera was as familiar with my chart as my Drs at Orleans. Knows his stuff. Which is Great for me!
- 5 out of 5 starsReviewed on 11/18/2024
Excellent
- 5 out of 5 starsReviewed on 11/15/2024
Very attentive and professionally nice
- 5 out of 5 starsReviewed on 11/11/2024
Dr. Caldera always takes the time to listen, doesn't rush thru the visit, explains things clearly, and generally seems to care about the patient's well-being. I really like him
- 5 out of 5 starsReviewed on 11/11/2024
The respect offered was exceptional
- 5 out of 5 starsReviewed on 11/8/2024
My doctor was the prover.He did agood job.
- 5 out of 5 starsReviewed on 11/7/2024
Great provider. Dr. Caldera always takes time to listen and act on my concerns.
- 5 out of 5 starsReviewed on 11/6/2024
Dr Colon is very nice
- 5 out of 5 starsReviewed on 11/6/2024
Best doctor I had lately
- 5 out of 5 starsReviewed on 11/4/2024
Everything was very professional.
- 5 out of 5 starsReviewed on 11/4/2024
Dr. Colon is a fantastic physician. He listens to you and answers your questions. He is kind and caring. He is the best physician I have had in a long time.
- 5 out of 5 starsReviewed on 10/31/2024
Excellent, thorough, professional, very friendly, very attentive, very comfortable
- 5 out of 5 starsReviewed on 10/31/2024
Excellent very professional.
- 5 out of 5 starsReviewed on 10/31/2024
Dr Caldera Colon is excellent in his care of my son who is complex care with autism, he gets excited to see "Dr Jonathan" and this let's me know my son is comfortable with him which is important to me
- 5 out of 5 starsReviewed on 10/30/2024
I feel very confident and comfortable to talk to any one in this privider they always care and always greeting you with an smile.
- 5 out of 5 starsReviewed on 10/28/2024
Excellent
- 5 out of 5 starsReviewed on 10/28/2024
He's a very nice caring Doctor He takes time to listen and answers your questions. He cares about his patients.
- 5 out of 5 starsReviewed on 10/25/2024
Very happy with Dr Caldera. He's very kind, caring and thorough.
- 5 out of 5 starsReviewed on 10/24/2024
Awesome medical team!
- 5 out of 5 starsReviewed on 10/23/2024
My normal PCP is [staff], but he was not available, so my back up PCP is Dr. Jonathan Caldera Colon, and he has done 2 post hospital stays with me and is very thorough and stays on time. Both [staff] and Dr. Colon know I want Dr. Colon to be my PCP when [staff] retires!
- 5 out of 5 starsReviewed on 10/23/2024
Dr Caldera took his time with me addressed all the medical issues/ concerns I had regarding my health issues . Does a excellent physical assessment - listening to my heart / lung sounds , assessing for any edema on my legs
- 5 out of 5 starsReviewed on 10/23/2024
Dr. Caldera Colon was the utmost professional and was very thorough
- 5 out of 5 starsReviewed on 10/22/2024
Dr Colon is wonderful. He listens to my concerns and is very attentive.
- 5 out of 5 starsReviewed on 10/18/2024
Dr Colon is knowledgeable and professional, but also personable and informal. I appreciate his thoroughness Both both in reviewing and making sure I understand the situation and my choices
- 5 out of 5 starsReviewed on 10/14/2024
Easy to talk too and he listen to my health issues. Very polite and friendly
- 5 out of 5 starsReviewed on 10/14/2024
Dr. Caldera makes me feel very comfortable and is a wonderful person.
- 5 out of 5 starsReviewed on 10/10/2024
Best dr ever ( dr J. Caldera
- 5 out of 5 starsReviewed on 10/7/2024
My previous provider left practice after I had been under his care for 25 years. I trusted him implicitly and was very concerned that I may not find someone who could fill his shoes. After talking with Dr. Caldera, I feel like it may be possible after all. He was thorough in reviewing my history, asking questions, and listening (the most Important factor for me), and I am hopeful that I will be able to entrust my care to him for years to come.
- 5 out of 5 starsReviewed on 10/7/2024
I like Dr Caldera and have established a good relationship with him. He is willing to help with any medical issues that I need taken care of.
- 5 out of 5 starsReviewed on 10/4/2024
Very good experience no issues Dr is very professional.
- 5 out of 5 starsReviewed on 10/3/2024
Professional competent friendly knowledgeable concerned
- 5 out of 5 starsReviewed on 9/30/2024
First time in seeing Dr, Colon. He listens to my concerns and toke care of the problems.
- 5 out of 5 starsReviewed on 9/26/2024
Listens to me and discussed the things that I am working on.
- 5 out of 5 starsReviewed on 9/24/2024
Great thanks
- 5 out of 5 starsReviewed on 9/23/2024
Dr. Colon is very thorough. He explains everything in detail. He goes over your lab work. He takes the time to answer any other concerns I have. Very good knowledgeable Dr.
- 5 out of 5 starsReviewed on 9/20/2024
Very pleased with Dr. Caldera. He is very punctual and very thorough, always reviewing all of my meds & asking if I have any concerns!!
- 5 out of 5 starsReviewed on 9/20/2024
He was very helpful and thorough.
- 5 out of 5 starsReviewed on 9/19/2024
I like my Doctor
- 5 out of 5 starsReviewed on 9/17/2024
This was my first visit with Dr. Caldera because my primary care doctor had closed their office. I was nervous, but Dr. Caldera was very welcoming, respectful and put me at ease about having lost my previous doctor. We went over all my medical issues and specialists and assured me that I made the right choice making Dr. Caldera my new primary care doctor.
- 5 out of 5 starsReviewed on 9/16/2024
I was VERY impressed with the improvement of Dr. Colon Caldera's accent. He was very difficult to understand on my first visit, but so much clearer on this visit. I was dreading it, but came away very pleased to understand him better.
- 5 out of 5 starsReviewed on 9/13/2024
1st Visit transfer. Excellent experience.
- 5 out of 5 starsReviewed on 9/13/2024
I like Jonathan Caldera
- 5 out of 5 starsReviewed on 9/13/2024
Good, well informed and courteous provider.
- 5 out of 5 starsReviewed on 9/11/2024
He is a wonderful doctor. I would recommend him to anyone.
- 5 out of 5 starsReviewed on 9/11/2024
Office is clean, doctor is knowledgeable, respectful and caring.
- 5 out of 5 starsReviewed on 9/9/2024
He went over all things on chart or questions
- 5 out of 5 starsReviewed on 9/6/2024
I am very pleased with my provider. He seemed to care about patient and discussed the lab results in detail.
- 5 out of 5 starsReviewed on 9/6/2024
Through, friendly, knowledgeable
- 5 out of 5 starsReviewed on 9/4/2024
Thorough, competent, compassionate
- 5 out of 5 starsReviewed on 9/4/2024
First visit. Very impressed. Glad I found him and he was taking new patients.
- 5 out of 5 starsReviewed on 8/21/2024
Excellent and knowledgeable
- 5 out of 5 starsReviewed on 8/19/2024
Dr Caldera shows genuine concern for his patients - I feel very comfortable with him and hope he stays at this practice. We have had several Dr changes in the past few years but really hope he stays.
- 5 out of 5 starsReviewed on 8/19/2024
Very pleased
- 5 out of 5 starsReviewed on 8/16/2024
Excellent visit. Dr. Colon is warm and caring.
- 5 out of 5 starsReviewed on 8/15/2024
Dr Colon is a excellent doctor. He cares about his patients and takes time to listen to your concerns and answers all your questions. I would highly recommend Dr. Colon to my family and friends.
- 5 out of 5 starsReviewed on 8/13/2024
Very professional
- 5 out of 5 starsReviewed on 8/8/2024
Provider was very communicative easy to talk to explained things and listened to me
- 5 out of 5 starsReviewed on 8/7/2024
Very patient and diligent.
- 5 out of 5 starsReviewed on 8/7/2024
Dr. Caldera was very prepared for my visit having reviewed notes from my other care providers. He Is very patient centered. He clearly explains the plan of care. He Is a real asset to the Hopkins Community Practice.
- 5 out of 5 starsReviewed on 8/5/2024
Excellent provider; I'm so grateful to have him.
- 5 out of 5 starsReviewed on 8/1/2024
Great job
- 5 out of 5 starsReviewed on 8/1/2024
This was my first check up in many many years. Dr Caldera is great. I will return and recommend him.
- 5 out of 5 starsReviewed on 7/31/2024
My provider is one of the best I have had! He is attentive and caring! He is always reassuring that my efforts in having and maintaining a healthy lifestyle is obtainable! He backs up every word he says until he finds a solution that is sustainable for me!! Dr Caldera Colon is the best provider! I often recommend him as well as the other providers at JohnHopkins to family and friends consistently!
- 5 out of 5 starsReviewed on 7/30/2024
The hagerstown office has provided the best service that I have ever experienced. I cannot thank them enough for what they do and how they treat me.
- 5 out of 5 starsReviewed on 7/24/2024
Dr. Colon is an exceptional physician. He is knowledgeable and very professional. Dr. Colon listened to me and made me feel as if we would be working together to help me. I felt at ease discussing my concerns. I also asked if he would be available for other appointments and he assured me that I would be seeing him. However, I assumed that doctors who are practicing under the Johns Hopkins name would be outstanding. My daughter, my husband and myself have been treated at Johns Hopkins and we have complete confidence in their physicians.
- 5 out of 5 starsReviewed on 7/24/2024
Dr Caldera is kind and compassionate. He answers questions and is thorough. I really like him
- 5 out of 5 starsReviewed on 7/22/2024
I've continued to receive great care from this provider. I also asked my wife to switch providers from Meritus Health to John's Hopkins. Since her move to John's Hopkins, she has been very pleased with all the services she has received as well. We tell everyone about the great service provided here.
- 5 out of 5 starsReviewed on 7/22/2024
Very pleased with Dr Caldera ( both his knowledge and his friendly manner)
- 5 out of 5 starsReviewed on 7/19/2024
I'm VERY happ with Dr. Caldera. He takes time with me & listens/answers my concerns
- 5 out of 5 starsReviewed on 7/17/2024
Dr Colon is wonderful
- 5 out of 5 starsReviewed on 7/17/2024
Dr.Caldera-Colon is anexcellant doctor - he listens and provides help unlike any other doctor I have ever seen!!!
- 5 out of 5 starsReviewed on 7/17/2024
Very well education on medical probjes
- 5 out of 5 starsReviewed on 7/15/2024
Dr. Jonathan caldera takes his time with you. He shows sympathy when needed. He is very thorough in explaining things.
- 5 out of 5 starsReviewed on 7/15/2024
Very knowledgeable and caring provider.
- 5 out of 5 starsReviewed on 7/11/2024
Great doctor takes to to explain everything.
- 5 out of 5 starsReviewed on 7/11/2024
I always enjoy seeing Dr. Caldera-Colon. He is very knowledgeable, friendly and is concerned about his patients.
- 5 out of 5 starsReviewed on 7/9/2024
Is working with me to get my A1c under control. From 8 down to 6.8 in 6 months just by taking sugar out of my diet. Letting me take control and not relying on drugs.
- 5 out of 5 starsReviewed on 7/3/2024
Very thorough and professional doctor spent lot of time with me and being very thorough in reviewing my medical history and medications. I thought he was concerned and cared about me as a patient.
- 5 out of 5 starsReviewed on 7/3/2024
Dr Caldera is a fine doctor, and thorough. But, I have a hard time hearing him.
- 5 out of 5 starsReviewed on 7/2/2024
This was a first time visit with this practice and provider. Dr. Calderon Colon was excellent. He is knowledgeable, empathetic and communicative. I am very happy to have him as my new primary care physician.
- 5 out of 5 starsReviewed on 7/1/2024
Thorough, caring and I am very happy he is my provider
- 5 out of 5 starsReviewed on 7/1/2024
Enjoyed meeting Dr. Caldera
- 5 out of 5 starsReviewed on 7/1/2024
Awesome..Best me and wife has had
- 5 out of 5 starsReviewed on 7/1/2024
Dr Caldera seems like he might be a good fit for me with the retirement of Dr [ ] . We will see in time.
- 5 out of 5 starsReviewed on 6/27/2024
My first visit with Dr Caldera He was very through and informative and helping me with my condition great listener also I feel very comfortable transferring my care to himMy pcp who have been my doctor for 25 years is retiring. My visit was fantastic and I am extremely happy with Dr Caldera
- 5 out of 5 starsReviewed on 6/14/2024
Dr. Caldera is the most patient provider I have ever had. He listens and responds! Never seems to be in a hurry to complete the visit.
- 5 out of 5 starsReviewed on 6/14/2024
Very efficient and knowledge
- 5 out of 5 starsReviewed on 6/14/2024
Dr. Caldera has always been extremely efficient in his check ups with me. Always reviewing all of prescriptions & answering of our questions. We are extremely pleased with his " bedside manner".
- 5 out of 5 starsReviewed on 6/12/2024
This Dr. Cared, took time , was patient with questions. Studied my history carefully, I would highly recommend him to anyone
- 5 out of 5 starsReviewed on 6/11/2024
This was my first visit to this office and provider. Dr Caldera was able to assimilate my health concerns and discuss them with me. He was very understanding and I felt his thoughts were very helpful. He covered all aspects of my particular health concerns. One of the best physcian visits I have ever had. Dr Caldera is very well informed and intelligent. He works well with patient's health priorities and emotional conerns.
- 5 out of 5 starsReviewed on 6/10/2024
Best doctor's visit I have ever been to.
- 5 out of 5 starsReviewed on 6/10/2024
Dr. Was very thorough. He took adequate time to go through all of my health concerns.
- 5 out of 5 starsReviewed on 5/30/2024
Great annual physical visit.
- 5 out of 5 starsReviewed on 5/24/2024
Was very impressed withThe visit and time he spent with me very professional and great bed side manner a keeper for sure
- 5 out of 5 starsReviewed on 5/24/2024
Excellent physician
- 5 out of 5 starsReviewed on 5/22/2024
I just love how calm and thoughtful henis
- 5 out of 5 starsReviewed on 5/20/2024
Good care at Physician Office
- 5 out of 5 starsReviewed on 5/13/2024
Dr Caldera Colon is excellent. I have already recommended him to others.
- 5 out of 5 starsReviewed on 5/9/2024
Very professional and concerned about his patient.
- 5 out of 5 starsReviewed on 5/8/2024
I've received excellent, kind, professional care from this provider for 30 years. I've had 3 different doctors over these years and they've all been fantastic.
- 5 out of 5 starsReviewed on 5/8/2024
Dr Colon was great, Very thorough.
- 5 out of 5 starsReviewed on 5/7/2024
Dr. Caldera Colon is an excellent physician.
- 5 out of 5 starsReviewed on 5/7/2024
Dr. Caldera was very professional and helped me with all my health questions. Thank you Doctor Caldera.
- 5 out of 5 starsReviewed on 5/6/2024
DR COLON WAS EXTREMELY KIND, FRIENDLY ANDCOMPETENT AND CARING. VERY INTUITIVE .AND THOUGHTFUL EXCELLENT PROVIDER.
- 5 out of 5 starsReviewed on 5/6/2024
Dr. Caldera is very good, empathetic, knowledgeable and caring. I trust him
- 4 out of 5 starsReviewed on 5/2/2024
He is a very doctor but very slow about sending refill paper to pharmacy.
- 5 out of 5 starsReviewed on 5/2/2024
Dr. Jonathan Caldera
- 5 out of 5 starsReviewed on 5/1/2024
He is a good listener, he communicate well, and he's ready to work with me.
- 5 out of 5 starsReviewed on 4/29/2024
Excellent! Highly recommend