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Dr. Gregory Johnson, MD Visit Healthgrades for information on Dr. Gregory Johnson, MD. Find Phone & Address information, medical practice history, affiliated hospitals and more.

Specializes in Gastroenterology • Male • Age 68

227 W Janss Rd Ste 215
Thousand Oaks, CA 91360
OverviewPhone & AddressExperienceHospital QualityPatient Satisfaction

Key things you need to know about
Dr. Johnson:


Phone & Address

Check insurance plans, locations and make an appointment

Accepting new patients?

  • Yes

Dr. Johnson's Offices

Gregory H Johnson, MD
Gregory H Johnson, MD
227 W Janss Rd Ste 215
Thousand Oaks, CA 91360
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7 Tips to Prepare for Your Appointment

The key to a successful appointment is communication. To get the most out of your visit, prepare ahead of time so you can lead the conversation with your doctor. These 7 tips will get you ready


Dr. Johnson's Experience

Research training, expertise and qualifications

Dr. Johnson's Specialties

  • Gastroenterology

Procedures Dr. Johnson Performs

  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • See all 4 procedures

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Hospital Quality

The right hospital is as important as the right doctor

Los Robles Hospital and Medical Center
215 W Janss Rd
Thousand Oaks, CA 91360

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9 Facts About Hospital Quality

Patients’ risk of dying during a hospital stay for heart bypass surgery could be 87.4% lower, on average, at a hospital rated 5 stars compared to a hospital rated 1 star for that procedure. Choosing the right hospital is critical to your health. View Slideshow


Patient Satisfaction

Patients' feedback on their experience with Dr. Johnson


8 Facts About Patient Satisfaction Surveys

Patient satisfaction surveys provide a standardized way of reporting about healthcare experiences. But there can be more than meets the eye when reviewing scores. Here's what you should know

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