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Summary
Dr. John Grenn specializes in internal medicine and pediatrics, providing comprehensive care for patients across all age groups. He earned his medical degree from the University of Mississippi School of Medicine and has been practicing for nine years, developing expertise in managing complex medical conditions in both adult and pediatric populations.
Dr. Grenn is affiliated with University of Mississippi Medical Center and several other hospitals throughout Mississippi and Texas, with practice locations in Jackson and Flowood, Mississippi. His clinical focus includes treating patients with COPD and other respiratory conditions, as well as managing chronic kidney disease. Dr. Grenn also performs comprehensive metabolic panels and coordinates blood testing to help diagnose and monitor various health conditions.
Dr. Grenn is affiliated with University of Mississippi Medical Center and several other hospitals throughout Mississippi and Texas, with practice locations in Jackson and Flowood, Mississippi. His clinical focus includes treating patients with COPD and other respiratory conditions, as well as managing chronic kidney disease. Dr. Grenn also performs comprehensive metabolic panels and coordinates blood testing to help diagnose and monitor various health conditions.
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Quick Facts
- accepting new patients
- 9 years of experience
- University Of Mississippi School Of Medicine
- 2 specialties
- 2 areas of expertise
- 10 hospital affiliations
- 5 office locations
- Male
Office Locations
Dr. John Caleb Grenn has 5 locationsUniversity Physicians Grants Ferry
1010 Lakeland PlFlowood, MS 39232 Tel: (601) 815-0600
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  | | |
| Dr. John Caleb Grenn, MD | Dr. Shanna Pettie, MD | Dr. Casey Patrick Sitton | Dr. Julian Lee Owen |
| Internal Medicine | Internal Medicine | Emergency Medicine | Pediatrics |
| Accepts New Patients | Accepts New Patients | ||
| 9 Years of Experience | 18 Years of Experience | 19 Years of Experience | 68 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English | Speaks English | Speaks English | |
| Jackson , MS | Jackson , MS | Jackson , MS | Ridgeland , MS |
| Med School: University Of Mississippi School Of Medicine | Med School: Wayne State University School Of Medicine | Med School: University Of Mississippi School Of Medicine | Med School: Vanderbilt University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Caleb Grenn
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. John Caleb Grenn has the following 2 specialties
Specialty Expertise
Dr. John Caleb Grenn has the following 2 areas of expertise
Certifications, License, & Education
9 Years Experience
MEDICAL LICENSE
Medical Doctor, Mississippi, 2026, Active
EDUCATION & TRAINING
Medical School
University Of Mississippi School Of MedicineGraduated in 2017
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Frequently Asked Questions
- How can I make an appointment with Dr. John Grenn?
- You can find contact information for Dr. John Grenn here on Vitals.
- Does Dr. John Grenn accept virtual/telehealth appointments?
- Dr. John Grenn has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Is Dr. John Grenn accepting new patients?
- Dr. John Grenn is accepting new patients on Vitals. View Dr. John Grenn's profile on Vitals to make an appointment.
- Does Dr. John Grenn accept my insurance?
- You can see the insurance plans that Dr. John Grenn accepts on their Vitals profile.
- Which hospitals is Dr. John Grenn affiliated with?
- Dr. John Grenn is affiliated with University Of Mississippi Medical Center, Womans Hospital, Merit Health River Oaks, Wiser Hospital For Women And Infants, Conerly Critical Care Hospital Ummc, Post Acute Medical Specialty Hospital North Of Corpus Christi, Corpus Christi Medical Center Doctors Regional Hospital, Driscoll Childrens Hospital, Christus Spohn Hospital Corpus Christi Shoreline, and Childrens Of Mississippi Hospital.
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