Dr. Eduardo Castillo, MD

Dr. Eduardo Castillo, MD

Gastroenterologist
3405 Olandwood Ct, Ste 101-104, Olney, MD
4.88
“Dr. Castillo was very kind and genuinely interested in getting to the bottom of my issue. He ordered appropriate follow up testing, setting the right next steps in motion. Again he was so kind and understanding when I saw him for an endoscopy, following up with a next course of action based on my results. I am so relieved to find a physician interested in doing what it takes to improve my situation. I am 42 years old, very healthy and active but have extreme discomfort from any meal and as result have fear of food. I am surprised to be hopeful we might find the underlying cause of my challenges, as I need to eat well to maintain my strength training goals and stay strong as I age. Highly recommend this doctor.”
Jennifer J.January 10, 2026
Highly recommended
94% of patients gave this doctor 5 stars
Excellent wait time
90% of patients waited less than 30 minutes
New patient appointments
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Available appointments

Today, Apr 2 – Wed, Apr 15
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What patients are saying

Overall rating

4.88

Average wait time

4.49

Bedside manner

4.96
“Dr. Castillo was very kind and genuinely interested in getting to the bottom of my issue. He ordered appropriate follow up testing, setting the right next steps in motion. Again he was so kind and understanding when I saw him for an endoscopy, following up with a next course of action based on my results. I am so relieved to find a physician interested in doing what it takes to improve my situation. I am 42 years old, very healthy and active but have extreme discomfort from any meal and as result have fear of food. I am surprised to be hopeful we might find the underlying cause of my challenges, as I need to eat well to maintain my strength training goals and stay strong as I age. Highly recommend this doctor.”
Jennifer J.January 10, 2026
“The front desk staff was amazing upon entry and upon departure-- Thank you for making my whole experience seamless. The provider is great!! Dr. Castillo is efficient and helpful. He had a conversation with thoughrougly explained all next steps. Unfortunately, I am having significant issues in sppeaking with the PA or Physician Assistant it has been over a week that I have been in contact with her attempting to obtain an override for a prescription. I am unable to directly speak to her when I call the office they only send her messages. I can only hope that I will have her contact me and the medication sorted in the next week. ”
Latosha C.May 23, 2025

About Dr. Eduardo Castillo

Serving the communities of Olney and Columbia, MD, Dr. Eduardo Castillo is an attending physician at Gastro Center of Maryland. An accomplished gastroenterologist, he looks forward to providing his patients with the proper tools and advice they need to improve or maintain their overall health. Dr. Castillo received his medical degree from the Universidad Peruana Cayetano Heredia Facultad de Medicina Alberto Hurtado. He then completed a residency in internal medicine at Henry Ford Hospital, where he served as a chief resident. He further completed a fellowship in gastroenterology and hepatology at the same institution. He is also certified by the American Board of Internal Medicine with a focus on gastroenterology. Dr. Castillo is a zealous researcher, with authorial credits in numerous esteemed publications. He is also an active member of the American College of Gastroenterology, the American Society for Gastrointestinal Endoscopy, and the American Medical Association.

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Areas of expertise

This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Upper GI endoscopy
Acid reflux
Colonoscopy
Upper GI endoscopy
Acid reflux
Colonoscopy

Office locations

Gastro Center of MD (1 of 4)
3405 Olandwood Ct, Ste 101-104, Olney, MD 20832
Gastro Center of MD (2 of 4)
7120 Minstrel Way, Ste 100, Columbia, MD 21045
Gastro Center of MD (3 of 4)
1419 Forest Dr, Annapolis, MD 21403
Gastro Center of MD (4 of 4)
7130 Minstrel Way, Ste 215, Columbia, MD 21045
1 of 4

Education and background

Practice names

Board certifications

  • Gastroenterology (Internal Medicine)

Education and training

  • Medical School - Universidad Peruana Cayetano Heredia Facultad de Medicina Alberto Hurtado
  • Henry Ford Hospital, Residency in Internal Medicine
  • Henry Ford Hospital, Fellowship in Gastroenterology and Hepatology
  • Henry Ford Hospital (Internship)

Professional memberships

  • American College of Gastroenterology
  • American Society for Gastrointestinal Endoscopy
  • American Medical Association

Languages spoken

  • English
  • Spanish

Provider's gender

Male

NPI number

1275743221

Patient reviews

All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.88
Wait time
4.49
Bedside manner
4.96
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217 reviews
Most relevant
We would definitely refer our family and friends to Dr. Castillo - absolutely excellent interaction.
Great staff. Excellent conversation about my symptoms and steps to diagnose. Felt very comfortable. Would recommend.
Verified patient
The staff was very knowledgeable and pleasant. Dr. Castillo was very pleasant, professional, informative, and engaging.
Verified patient
Todas las personas que trabaja ahí son muy profesionales y muy amables te explican todo muy bien. Un excelente servicio!!!
Verified patient
Great doctor and staff! Felt very comfortable with Dr. Castillo. He put me at ease and made sure I understood everything.
He is the kind of doctor that will listen the patient! I will come back and refer him to every single person I meet!
Verified patient
Excellent Doctor! I would definitely will recommend him to my whole family. Very professional and knowledgeable.
Verified patient
Dr. was very professional. I liked the staff and the doctor. I would certainly recommend Dr. Castillo to my friends.
Caring, very knowledgeable, professional doctor with great bedside manner. I highly recommend Dr.Castillo.
Verified patient
Dr. Castillo was very friendly and asked me lots of questions. He seemed very knowledgeable and empathetic.
Verified patient
Great doctor. He took time to listen to concerns. Thank you!
Even if, this visitation was first time , I got a right place to get a best treatment. Thank you.
Verified patient
The provider service was excellent! Also, it was a plus because they speak Spanish!
Verified patient
Cool. Pretty standard although the wait of more than an hour won’t cut it in the future.
Great and exceptional service. Doctor Castillo is a great listener and he is caring.
Verified patient
I extremely recommend Dr Castillo he’s very nice & professional!
Verified patient
Receptionist very friendly, doctor explained everything clearly.
Verified patient
The staff and doctor were friendly and very attentive.
Verified patient
Very quick, little wait time, overall good experience
Verified patient
Dr. Castillo was very kind and genuinely interested in getting to the bottom of my issue. He ordered appropriate follow up testing, setting the right next steps in motion. Again he was so kind and understanding when I saw him for an endoscopy, following up with a next course of action based on my results. I am so relieved to find a physician interested in doing what it takes to improve my situation. I am 42 years old, very healthy and active but have extreme discomfort from any meal and as result have fear of food. I am surprised to be hopeful we might find the underlying cause of my challenges, as I need to eat well to maintain my strength training goals and stay strong as I age. Highly recommend this doctor.
Verified patient
The front desk staff was amazing upon entry and upon departure-- Thank you for making my whole experience seamless. The provider is great!! Dr. Castillo is efficient and helpful. He had a conversation with thoughrougly explained all next steps. Unfortunately, I am having significant issues in sppeaking with the PA or Physician Assistant it has been over a week that I have been in contact with her attempting to obtain an override for a prescription. I am unable to directly speak to her when I call the office they only send her messages. I can only hope that I will have her contact me and the medication sorted in the next week.
Verified patient
The doctor was very friendly & actually made me felt seen/understood vs. other previous providers. Very glad to have found a good GI!
Verified patient
Dr. Castillio is very knowledgeable and thorough. He took the time to listen and explain things in great detail. He did not rush through my visit and acted like I was only patient. I highly recommend him.
Verified patient
Dr Castillo explained to us what could be the problem, Very thoughtful and was concerned about my problem. I felt a different experience with Dr. Castillo from my other doctor.
Verified patient
Today I had a medical appointment, the doctor listened, answered my questions, the clinic very clean, the staff excellent. 100% recommended
Verified patient
The doctor was fabulous - thorough, professional, compassionate and caring. He reviewed my history and provided a comprehensive plan of action. I had to wait 40 minutes for the appointment.
Verified patient
Dr. Castillo was fantastic! I am so happy I booked with him!! He listened to all of my worries and the staff explained all of the tests we are going to go through and we made a thorough plan to move forward with.
Verified patient
Great experience, front desk and staff were all super friendly and professional. Very impressed! This certainly eases my mind a bit as I get through all my tests. Highly recommend!
Verified patient
Dr. Castillo is a nice doctor, easy to talk to, listens patiently with intent. We will look forward to the results of his diagnosis and treatment plan.
Verified patient
Excelente doctor, recomendadoo!!
Dr. Castillo was wonderful and really took the time to understand my concerns. All of the staff was equally as helpful and kind!
Dr. Castillo’s bedside manner is top notch! It is the most difficult quality to find in doctors hi and he has it in spades. He’s patient and thorough. Office staff is also helpful, kind and imformative.
Verified patient
Very nice doctor He listen and explain you He speals spanish so it was easy to communicate I did not like the office charge me the copay before seen the doctor first. It seems rude to me. All the test exams needs to be collected by yourself; they gave me 3 boxes of stuff witj vials and bags: this should be done by a lab technician!
My experience with the office was so horrible. Very unprofessional. They canceled my follow up appointment which was 8/9 without telling me and rescheduled me to 8/31 again without telling me. I’m literally calling and begging to get my lab results. So now I will have to wait the whole month to get my lab results. Stay away from this place!
Verified patient
Very nice Doctor!! Staff was super !
Verified patient
I was treated very nicely. Thanks Dr.
Verified patient
Today was my first visit with Dr. Castillo and I’m so thankful to have found him on ZocDoc. My goal was to get an appointment ASAP with a good doctor who could help me with my GI issues. The visit exceeded my expectations!! Dr. Castillo and his staff were so kind and knowledgeable. They really helped me to relax and feel supported to understand my symptoms and next steps for care. I’m looking forward to being under Dr. Castillo’s care and identifying a treatment plan.
Verified patient
Wonderful experience here. Highly recommended!
Verified patient
Very professional.
Verified patient
Nice office !! Doctor very professional
Verified patient
Great staff and office in Annapolis. Very impressed with Colleen Abell, the CNP I met with. Kind, caring, very bright, and listens to what you have to say.
Verified patient
Excellent
Verified patient
Muy buen doctor amable y
Verified patient
Dr. Castillo has a wonderful bedside manner. He is knowledgeable and compassionate. He explained everything to me and I left knowing I was in good hands.
Verified patient
I was there to schedule a colonoscopy. The doctor was very friendly and gave me very useful advice on the need for my nieces and nephews to have tests once they attained the age of 30 years since they lost their mom through colon cancer before she turned 50. This was great advice because I had never been informed before. For the brief period I was there, the doctor made me feel at ease while he was attending to me, as we discussed soccer which was very popular game in both our countries. It was a very pleasant experience beginning with the office staff.
Verified patient
The f de actor is nice. My overal experience was not good due the interaction to the staff. The charged me a deductible when there was none.
Verified patient
Wonderful experience! I highly recommend!
Verified patient
I really liked Dr. Castillo. He was patient and knowledgeable. The only minor problem I have is that he prescribed procedures for me that I thought were too hasty. I don't think every case needs a colonoscopy and endoscopy. But in general, I liked his bedside manners.
The visit was very thorough and they asked me several times if I had any questions or concerns. The doctor was very polite and attentive, he gave me his card in case I had any follow up questions. I felt heard when it came to my issues and they gave me immediate actions/solutions to my remedy my problems. I felt so much much better by the end of the visit.
Verified patient
Great attention and care!
Verified patient
Frequently asked questions

How soon can I make an appointment with Dr. Eduardo Castillo?

Generally, Dr. Eduardo Castillo has appointments available on Zocdoc within 1 week. You can see Dr. Castillo's earliest availability on Zocdoc and make an appointment online.

Is Dr. Eduardo Castillo accepting new patients?

Dr. Eduardo Castillo generally accepts new patients on Zocdoc. You can see Dr. Castillo's earliest availability on Zocdoc and schedule an appointment online.

Does Dr. Eduardo Castillo accept my insurance?

Choose your insurance plan to verify if Dr. Castillo is in-network.

Can I make an appointment with Dr. Eduardo Castillo online?

Yes, you can make an appointment online with Dr. Castillo using Zocdoc. It’s simple, secure, and free.

What practice does Dr. Eduardo Castillo work with?

Where is Dr. Eduardo Castillo's office located?

Dr. Eduardo Castillo has 4 office locations, including in Columbia, Olney, and Annapolis, view full addresses on Dr. Castillo's profile.

Which board certifications does Dr. Eduardo Castillo have?

Dr. Eduardo Castillo is certified by Gastroenterology (Internal Medicine).

What are common reasons for patients to see Dr. Eduardo Castillo?

Dr. Eduardo Castillo frequently sees patients for Abdominal Pain, Colonoscopy, Diarrhea, Gastroenterology Consultation, and Hemorrhoids. You can see other visit reasons for Dr. Eduardo Castillo on their profile.

What languages does Dr. Eduardo Castillo speak?

Dr. Eduardo Castillo speaks English and Spanish.

How do patients rate Dr. Eduardo Castillo in reviews?

217 patients have reviewed Dr. Eduardo Castillo. The overall rating for this doctor is 4.88/5. They have a 4.96/5 rating for bedside manner and a 4.49/5 rating for wait time. You can read individual reviews and ratings on their profile.

ZocdocColumbia, MD GastroenterologistsDr. Eduardo Castillo, MD