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Dr. John Castor, MD

Dr. John Castor, MD

Gastroenterology*
15+ years of experience

Dr. John Castor, MD is a gastroenterologist in Dublin, OH and has over 15 years of experience in the medical field. Dr. Castor has extensive experience in Pancreatic Disease and Esophageal Disorders. He graduated from Case Western Reserve University School of Medicine in 2005. He is affiliated with medical facilities such as Riverside Methodist Hospital and OhioHealth Grant Medical Center. He is accepting new patients and telehealth appointments.

5 Star Rating
Based on 60 reviews 5 Star Rating (60 reviews)

Ohio Gastroenterology Group

6670 Perimeter Dr Ste 200 Dublin, OH 43016
Telehealth available

Make an Appointment

Hospital Highlight

Dr. Castor is affiliated with Dublin Methodist Hospital Dublin, a highly rated and top awarded hospital for gastroenterology.

Dr. Castor is a Healthgrades Choice provider in Gastroenterology

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Area of Expertise
    Dr. Castor specializes in the area of Gastroenterology. See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    Gastrointestinal Surgery Excellence Award™ See hospitals
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Dr. Castor's Reviews

Likelihood to recommend Dr. Castor

5.0

60 ratings, 49 with a written review
5 Star
100%
100%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
0%
0%

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RecentHighestLowestMost Helpful
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Apr 04, 2025
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
3 people found this helpful
Helpful
Joni Hudnall – Sep 10, 2023
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Donna OBrian – Aug 27, 2023
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Rebecca K Adkins – Aug 22, 2023
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What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jul 12, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jul 09, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jun 17, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
No results
What could be improved
No results
Helpful
Jun 01, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
May 22, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
May 18, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
May 18, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
May 15, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
May 13, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • Appointment scheduling
  • Staff friendliness
  • Appointment wasn't rushed
  • Wait times
What could be improved
No results
Helpful
Apr 15, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
A very satisfied patient! – Mar 29, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Jan 17, 2023
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Frederick H Powrie – Dec 18, 2022
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Jetta – Dec 17, 2022
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Dec 10, 2022
×Post a ResponseAre you Dr. John Castor, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
John K. – Aug 17, 2022
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Leave a review

How was your experience with Dr. Castor?

About Me

care philosophy

Dr. John Castor joined Ohio Gastroenterology Group in 2011 after completing his residency and fellowship training at Duke University. He is board certified in Gastroenterology and has earned a Masters of Health Science (MHS) degree. He serves...read more
  • Gastroenterology

  • Internal Medicine

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Duke University, Master Of Health Science

    2010
  • University Of North Carolina, Visiting Motility Fellowship

    Fellowship Hospital, 2010
  • Duke University Medical Center

    Internship Hospital, 2006
  • Case Western Reserve University School Of Medicine

    Medical School, 2005
  • Otterbein College, Westerville, Oh

    Undergraduate School, 2000
American Board of Medical Specialties®
American Board of Internal Medicine®
Gastroenterology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Dr. Castor is a Healthgrades Choice provider in Gastroenterology

    Read our methodology

    Locations

    Ohio Gastroenterology Group

    Dublin Office6670 Perimeter Dr Ste 200 Dublin, OH 43016
    1
    East Office85 McNaughten Rd Ste 320 Columbus, OH 43213
    2
    West Office815 W Broad St Ste 220 Columbus, OH 43222
    3

    Interventional Pain Center

    Ohio Gastroenterology Group Inc.3400 Olentangy River Rd Columbus, OH 43202
    4

    Ohio Gastroenterology Group

    North Office3820 Olentangy River Rd Columbus, OH 43214
    5

    OhioHealth Outpatient Behavioral Health

    Ohio Gastroenterology Group3820 Olentangy River Rd Columbus, OH 43214
    6

    Affiliated Hospitals

    • Dublin Methodist Hospital

      7500 Hospital Dr
      Dublin, OH 43016
      Recipient of 7
      hospital awards

      Gastrointestinal Surgery Excellence Award™ (2025)

      Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery

      America’s 100 Best Hospitals for Gastrointestinal Surgery Award™ (2024, 2023)

      Superior clinical outcomes in bowel obstruction treatment, colorectal surgeries, gallbladder removal, and upper gastrointestinal surgery

      View all awards

      How patients felt about the care they received at this hospital.

      83%
      Patients said they were given information about recovering at home

      4% lower than the national average

      81%
      Patients said that nurses always listened to them and explained things well

      3% higher than the national average

      View all patient feedback
    • Riverside Methodist Hospital

      3535 Olentangy River Rd
      Columbus, OH 43214
      Recipient of 31
      hospital awards

      America's 100 Best Hospitals Award™ (2025, 2024, 2023)

      Top 5% in the nation for consistently delivering clinical quality

      America's 250 Best Hospitals Award™ (2025, 2024, 2023)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards

      How patients felt about the care they received at this hospital.

      85%
      Patients said they were given information about recovering at home

      1% higher than the national average

      76%
      Patients said that doctors always listened to them and explained things well
      View all patient feedback
    • Mount Carmel St. Ann's

      500 S Cleveland Ave
      Westerville, OH 43081

      How patients felt about the care they received at this hospital.

      86%
      Patients said they were given information about recovering at home

      2% higher than the national average

      79%
      Patients said that nurses always listened to them and explained things well

      4% higher than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality