5
1 Rating
Summary
Dr. Dietmar Grentz is a family medicine physician with additional expertise in preventative medicine. He earned his medical degree from Loma Linda University School of Medicine and brings over four decades of clinical experience to his practice. Dr. Grentz is fluent in both Spanish and English, allowing him to serve a diverse patient population.
Dr. Grentz practices at Corewell Health St Joseph Hospital in Saint Joseph, Michigan, and maintains affiliations with University of Michigan Health Sparrow Carson Hospital and Corewell Health Lakeland Hospitals St Joseph Hospital. He specializes in managing complex conditions such as type 2 diabetes and chronic kidney disease. His practice includes performing comprehensive blood work and chemistry panels to monitor patient health. Patients consistently rate him highly, giving him an average score of 5.0 out of 5.
Dr. Grentz practices at Corewell Health St Joseph Hospital in Saint Joseph, Michigan, and maintains affiliations with University of Michigan Health Sparrow Carson Hospital and Corewell Health Lakeland Hospitals St Joseph Hospital. He specializes in managing complex conditions such as type 2 diabetes and chronic kidney disease. His practice includes performing comprehensive blood work and chemistry panels to monitor patient health. Patients consistently rate him highly, giving him an average score of 5.0 out of 5.
Overview based on verified provider data
Quick Facts
- 43 years of experience
- speaks Spanish, English
- Loma Linda University School Of Medicine
- 2 specialties
- 9 areas of expertise
- 2 hospital affiliations
- 1 office location
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Location
Compare with Similar Doctors
 |  |  |  |
| Dr. Dietmar Jorgen Grentz, MD | Dr. Shakeilla Smithbey, MD | Nicole Baldwin, APRN, FNP-BC | Helix Virtual Care |
| Family Medicine | Family Medicine | Family Medicine | Family Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 43 Years of Experience | 15 Years of Experience | 8 Years of Experience | |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks Spanish, English | Speaks English | Speaks English | |
| Saint Joseph , MI | Houston , TX | Orlando , FL | Boca Raton , FL |
| Med School: Loma Linda University School Of Medicine | Med School: Howard University College Of Medicine | ||
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Dietmar Jorgen Grentz
Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.
Medical Specialties
Dr. Dietmar Jorgen Grentz has the following 2 specialties
Specialty Expertise
Dr. Dietmar Jorgen Grentz has the following 9 areas of expertise
Certifications, License, & Education
43 Years Experience
Dr. Dietmar Jorgen Grentz holds an expired medical license in the state of Michigan.
Medical License
Medical Doctor with an expired medical license in the state of Michigan that expired in 2025.
Education & Training
Medical School
Graduated from Loma Linda University School Of Medicine in 1983.
NPI Number
Dr. Grentz's NPI number is 1346269586.
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Frequently Asked Questions
- What languages does Dr. Dietmar Jorgen Grentz speak?
- Dr. Dietmar Jorgen Grentz speaks Spanish and English.
- Is Dr. Dietmar Jorgen Grentz accepting new patients?
- Dr. Dietmar Jorgen Grentz has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Does Dr. Dietmar Jorgen Grentz accept my insurance?
- You can see the insurance plans that Dr. Dietmar Jorgen Grentz accepts on their Vitals profile.
- How can I make an appointment with Dr. Dietmar Jorgen Grentz?
- You can find contact information for Dr. Dietmar Jorgen Grentz here on Vitals.
- Does Dr. Dietmar Jorgen Grentz accept virtual/telehealth appointments?
- Dr. Dietmar Jorgen Grentz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
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