Dr. Gregory Johnson, MD

Dr. Gregory Johnson, MD

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Gastroenterology  |  
Male  |  
70 y/o
(17)

Accepting new patients

Dr. Gregory Johnson, MD is a gastroenterology doctor who practices in Thousand Oaks, CA. He is 70 years old. Dr. Johnson is affiliated with Los Robles Hospital and Medical Center.

Gregory H Johnson, MD

227 W Janss Rd Ste 215

Thousand Oaks, CA 91360
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Accepted insurance

  • Accepts most major Health Plans. Please contact our office for details.
  • Aetna
  • Anthem Blue Cross Blue Shield
  • Blue Cross Blue Shield
  • Health Net

Learn about Dr. Johnson

Dr. Johnson's Experience

0%ExperienceMatch
Dr. Johnson's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Gastroenterology
  • Board certified in Gastroenterology and Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found
2

Specialties

  • Gastroenterology
  • Internal Medicine
2

Board Certifications

  • Gastroenterology
    Accredited by: American Board of Medical Specialties*
  • Internal Medicine
    Accredited by: American Board of Internal Medicine*
80

Conditions Treated

  • Abdominal Disorders
  • Abdominal Pain
  • Abscess
  • Anal or Rectal Pain
  • Anemia
  • Autoimmune Diseases
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Benign Tumor
  • Biliary Atresia
  • Blood Disorders
  • Cancer
  • Celiac Disease
  • Cholecystitis and Gallstones
  • Cirrhosis
  • Colorectal Cancer
  • Constipation
  • Crohn's Disease
  • Dehydration
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dysphagia
  • Enteritis
  • Esophageal Achalasia and Cardiospasm
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Diverticulum
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Food Poisoning
  • Gallstones
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Heartburn
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis B - Immune Response
  • Hepatitis C
  • Hernia
  • Ileus
  • Indigestion
  • Inflammatory Bowel Disease
  • Intestinal Abscess
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Liver Damage from Alcohol
  • Malnutrition
  • Nausea
  • Neoplasm of Gastrointestinal Tract
  • Non-Alcoholic Fatty Liver Disease
  • Non-Neonatal Jaundice
  • Noninfectious Gastroenteritis and Colitis
  • Pancreatitis
  • Peptic Ulcer
  • Pouchitis
  • Pyloric Stenosis
  • Reflux Esophagitis
  • Salmonella Food Poisoning
  • Small Intestine Cancer
  • Stomach Cancer
  • Stomach Diseases
  • Stomach and Small Intestine Cancer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Vascular Insufficiency of Intestines
  • Viral Hepatitis
  • Vomiting Disorders

More

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6

Procedures

  • Bile Duct Procedure
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • ERCP (Endoscopic Retrograde Cholangiopancreatography)
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Gastroenterology Procedures
  • Liver Biopsy

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.

Education

  • University of California, Berkeley
    Undergraduate School | Graduated
  • Northwestern University The Feinberg School Of Medicine
    Medical School | Graduated
  • Los Angeles County University Of California Med Center
    Internship Hospital | Completed
  • Los Angeles County University Of California Med Center
    Residency Hospital | Completed
  • Los Angeles County University Of California Med Center
    Fellowship Hospital | Completed

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Johnson has no media or publications listed.

Languages Spoken

  • English
  • Spanish

Memberships & Professional Affiliations

Dr. Johnson does not have any memberships or affiliations listed. If you are Dr. Johnson and would like to add memberships or affiliations, please update your profile.

Dr. Johnson's Reviews

Likelihood of recommending Dr. Johnson to family and friends
3.6
based on 17 total reviews (1 with a comment)
Dr. Johnson's Performance
  • Trustworthiness
    VERY GOOD
  • Explains condition(s) well
    VERY GOOD
  • Answers Questions
    VERY GOOD
  • Time well spent
    VERY GOOD
Office & Staff Performance
  • Scheduling
    VERY GOOD
  • Office environment
    VERY GOOD
  • Staff friendliness
    VERY GOOD
  • Average wait time
    10 to 15 minutes
Patient Comments (1)
San Francisco, CA |
I adore Dr. Johnson and his staff. Receiving treatment from his was literally life changing for me and has greatly improved the quality of my life. His expertise uncovered a condition I'd been long suffering with that multiple other doctors had not picked up on.
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Visit Dr. Johnson

Now Accepting New Patients
Dr. Johnson accepts 5 insurance carriers
  • Accepts most major Health Plans. Please contact our office for details.
  • Aetna
  • Anthem Blue Cross Blue Shield
  • Blue Cross Blue Shield
    Blue Cross
  • Health Net

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Johnson has admitting privileges

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