


Dr. Calvin Olson, MD
Dr. Calvin Olson, MD is a gastroenterologist in Modesto, CA and has over 45 years of experience in the medical field. He graduated from University of California at Berkeley in 1977. He is affiliated with medical facilities Memorial Medical Center and Stanislaus Surgical Hospital. He is accepting new patients.
Practice
1409 E Briggsmore Ave Modesto, CA 95355Make an Appointment
Hospital Highlight
Dr. Olson is affiliated with Stanislaus Surgical Hospital Modesto, a highly rated hospital.
At a Glance
- Areas of ExpertiseDr. Olson specializes in the areas of Gastroenterology & Internal Medicine. • See board certifications
- Friendly Staff
- Practices at Top Hospital
- Hospital Satisfaction

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Dr. Olson's Reviews
Likelihood to recommend Dr. Olson
3.7
5 Star | 67% | 67% |
4 Star | 0% | 0% |
3 Star | 0% | 0% |
2 Star | 0% | 0% |
1 Star | 33% | 33% |
Overall Patient Satisfaction
Likelihood of recommending Dr. Olson to family and friends is 3.6666667 out of 5
About Me
biography
Dr. Calvin Olson, MD is a gastroenterologist in Modesto, CA and has over 45 years of experience in the medical field. He graduated from University of California at Berkeley in 1977. He is affiliated with medical facilities Memorial Medical Center and Stanislaus Surgical Hospital. He is accepting new patients.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.
University Of California At Berkeley
Medical School, 1977
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
Learn more about medical license public record checkFocus on IBD
Locations
Practice
Practice
Affiliated Hospitals
- Recipient of 5
hospital awardsView all awardsOutstanding Patient Experience Award™ (2023, 2022)
Top in the nation for overall patient experience based on nine measures related to doctor and nurse communication, hospital cleanliness and noise levels, and medication and post-discharge care instructions
View all patient feedbackHow patients felt about the care they received at this hospital.
91%Patients said that nurses always listened to them and explained things well9% higher than the national average
91%Patients said they were given information about recovering at home3% higher than the national average
- Recipient of 19
hospital awardsAmerica's 100 Best Hospitals Award™ (2025, 2024, 2023)
Top 1% in the nation for providing the highest clinical quality year over year
View all awardsAmerica's 250 Best Hospitals Award™ (2025, 2024, 2023)
Top 1% in the nation for providing the highest clinical quality year over year
View all patient feedbackHow patients felt about the care they received at this hospital.
86%Patients said they were given information about recovering at home2% higher than the national average
74%Patients said that doctors always listened to them and explained things well2% lower than the national average
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