Search

 See All Gastroenterologists in Thousand Oaks, CA

Dr. Gregory Johnson, MD

Gastroenterology* Age 77
Dr. Gregory Johnson, MD
3.7 (20 Ratings)
 Share
icon-circle-check
Link Copied!
Profile link copied to clipboard!
Map Pin Small Thousand Oaks, CA
Dr. Gregory Johnson, MD is a Gastroenterologist in Thousand Oaks, CA.
Dr. Gregory Johnson, MD
3.7 (20 Ratings)
 Share
icon-circle-check
Link Copied!
Profile link copied to clipboard!

Dr. Gregory Johnson, MD

Gastroenterology* Age 77
Thousand Oaks, CA
Accepting new patients
Dr. Gregory Johnson, MD is a Gastroenterologist in Thousand Oaks, CA.

About

Dr. Johnson graduated from Northwestern University Feinberg School of Medicine. Dr. Gregory Johnson, MD is a Gastroenterologist in Thousand Oaks, CA. Dr. Johnson currently practices at Practice and are affiliated with Ventura County Medical Center and Marian Regional Medical Center. At present, Dr. Johnson received an average rating of 3.6/5 from patients and has been reviewed 20 times. Dr. Johnson's office accepts new patients. Dr. Johnson also speaks Spanish. Dr. Johnson is board certified in Gastroenterology and accepts multiple insurance plans.

Experience Check

Enter a condition or procedure
Arterial Blood Gas Test (ABG)
Flexible Sigmoidoscopy
Manometry
Arterial Blood Gas Test (ABG)
Flexible Sigmoidoscopy
Manometry
Arterial Blood Gas Test (ABG)
Flexible Sigmoidoscopy
Manometry
Electrocardiogram (EKG)
Rigid Proctosigmoidoscopy
Abdominal Pain
Acidosis
  • View other providers who treat Acidosis
Acute Deep Vein Thrombosis (DVT)
Acute Kidney Infection
Acute Upper Respiratory Infection
Acute Venous Embolism Thrombosis
Administrative Physical
All Headaches (incl. Migraine)
All Types of Food Poisoning
Allergic Rhinitis
Anal or Rectal Pain
Anemia
  • View other providers who treat Anemia
Animal Allergies
Anxiety
  • View other providers who treat Anxiety
Arthritis
Arthritis of the Elbow
Asthma
  • View other providers who treat Asthma
Ataxia
  • View other providers who treat Ataxia
Atherosclerosis
Back Pain
Barrett's Esophagus
Bedsores
  • View other providers who treat Bedsores
Benign Chronic Pain Syndrome
Benign Neoplasm of the Digestive System
Bladder Infection
Blood in Urine (Hematuria)
Bronchitis
Calcium Metabolism Disorders
Canker Sore
Celiac Disease
Cellulitis
Chest Pain
Chronic Neck Pain
Chronic Pain
Cirrhosis
Cold Sore
Confusion
Constipation
COPD (Chronic Obstructive Pulmonary Disease)
Cough
  • View other providers who treat Cough
Crohn's Disease
Deep Vein Thrombosis (DVT)
Dehydration
Diabetes Type 1
Diabetes Type 2
Diabetes With Renal Manifestations
Diabetic Polyneuropathy
Diaphragmatic and Hiatal Hernia
Diarrhea
  • View other providers who treat Diarrhea
Difficulty With Walking
Diffuse Esophageal Spasm
Dizziness
Duodenal Ulcer
Duodenitis
Dysentery
Dyslipidemia
Dysphagia
E. coli Food Poisoning
Eczema and Contact Dermatitis
Emphysema
Enlarged Prostate (BPH)
Enteritis
Eosinophilic Esophagitis
Esophageal Diverticulum
Esophageal Motility Disorders
Esophageal Ulcer
Esophageal Varices
Esophagitis
Essential Tremor
Fever
  • View other providers who treat Fever
Fibromyalgia
Food Allergy
Gait Abnormality
Gallstones
Gas-Bloat Syndrome
Gastric Ulcer
Gastritis
Gastroesophageal Reflux Disease (GERD)
Gastrointestinal Bleeding
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Giardiasis
Gout
  • View other providers who treat Gout
Headache
  • View other providers who treat Headache
Heart Disease
Hemochromatosis
Hemorrhoids
Hepatitis A
Hepatitis B - Immune Response
Hepatitis C
Hepatorenal Syndrome
Hernia
  • View other providers who treat Hernia
Herpes Simplex Infection
Herpes Zoster Without Complication
Hiatal Hernia
Hip Sprain
Human Immunodeficiency Virus (HIV)
Hypercalcemia
Hyperkalemia
Hyperlipidemia
Hypertension
Hypokalemia
Hypotension
Hypotension (Excluding Maternal)
Hypothyroidism
Hypoxemia
Indigestion
Inflammatory Bowel Disease
Influenza (Flu)
Insomnia
  • View other providers who treat Insomnia
Intestinal Diverticulitis
Intestinal Diverticulosis
Intestinal Obstruction
Iron Metabolism Disorders
Irritable Bowel Syndrome
Ischemic Colitis
Itchy Skin
Joint Pain
Kidney Infection
Leg and Foot Ulcers
Limb Pain
Limb Swelling Caused by Fluid Overload
Lipid Disorders
Liver Damage from Alcohol
Loss of Taste
Low Back Pain
Magnesium Metabolism Disorders
Malaise and Fatigue
Mallory-Weiss Syndrome
Malnutrition
Menstrual Disorders
Mineral Metabolism Disorders
Nausea
  • View other providers who treat Nausea
Neoplasm of Gastrointestinal Tract
Neurogenic Bladder
Non-Alcoholic Fatty Liver Disease
Non-Neonatal Jaundice
Noninfectious Gastroenteritis and Colitis
Obesity
  • View other providers who treat Obesity
Osteoarthritis
Osteoarthritis of Foot
Osteoarthritis of Hip
Osteoarthritis of Hip and Thigh
Osteoarthritis of Knee
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Osteopenia
Osteoporosis
Overweight
Painful Urination (Dysuria)
Pancreatitis
Peptic Ulcer
Pericardial Disease
Phlebitis and Thrombophlebitis
Phosphorus Metabolism Disorders
Pneumonia
Polymyalgia Rheumatica (PMR)
Polyneuropathy
Polyuria
  • View other providers who treat Polyuria
Pouchitis
Prostatitis
Proteinuria
Purpura
  • View other providers who treat Purpura
Pyloric Stenosis
Radiculopathy
Raynaud's Disease
Reflux Esophagitis
Restless Leg Syndrome
Ringworm
  • View other providers who treat Ringworm
Sciatica
  • View other providers who treat Sciatica
Secondary Diabetes Mellitus
Sexually Transmitted Diseases (STDs)
Shingles
  • View other providers who treat Shingles
Shortness of Breath
Sinus Bradycardia
Sinus Tachycardia
Sleep Apnea
Sprains and Strains (incl. Muscle Tear)
Stye
  • View other providers who treat Stye
Tapeworm Infection
Tobacco Use Disorder
Tremor
  • View other providers who treat Tremor
Ulcerative Colitis
Unexplained Weight Loss
Urinary Hesitancy
Urinary Incontinence
Urinary Stones
Urinary Tract Infection (UTI)
Venous Embolism and Thrombosis
Venous Insufficiency
Vertigo
  • View other providers who treat Vertigo
Viral Enteritis
Viral Hepatitis
Viral Infection
Vitamin B Deficiency
Vitamin D Deficiency
Vitamin_Deficiency
Vomiting Disorders
Wheezing
  • View other providers who treat Wheezing
Yeast Infections
Bile Duct Procedure
Colon Cancer Screening
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Colorectal Cancer Screening
Duodenal Polypectomy
Endoscopy
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Fecal Occult Blood Test for Colorectal Cancer
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Immunization Administration
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Screening Colonoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Advantage Preferred DirectAccess Plus PPO
  • Prudent Buyer Individual CA PPO
    Prudent Buyer Large Group CA PPO
    Prudent Buyer Small Group CA PPO
  • Blue Cross CA Anthem High Performance Network
  • Blue Card PPO
    Blue Card High Performance Network HPN

Locations

  1. 1 Gregory H Johnson MD Inc
    227 W Janss Rd Ste 215, Thousand Oaks, CA 91360
    Icon Directions Right Arrow Directions Phone Icon (805) 497-9597

Patient Satisfaction

Likelihood to recommend Dr. Johnson
3.7
Based on 20 Reviews
5 Stars (12)
4 Stars (1)
3 Stars (0)
2 Stars (2)
1 Star (5)

Leave a review

How likely are you to recommend Dr. Johnson?

(Select your rating)
Patient Reviews
Nov 10, 2017
I've had 4 procedures done with Dr Johnson over the last 25 years and you you can't find a more caring doctor. He is straight to the point with information and kind in his delivery of difficult news. He and his office have provided great followup. Insurance issues are causing a lot of doctors to just leave the field, we can't blame them like some of these reviews have. I'm very happy he is still providing care, probably saved my life this month finding a problem early.
Steve in moorpark — Nov 10, 2017
See more reviews on Healthgrades
Photo: Dr. Gregory Johnson, MD
How would you rate your experience with Dr. Gregory Johnson, MD?
  • Likelihood of recommending Dr. Johnson to family and friends

Dr. Johnson's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Johnson

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

Tell Us About Yourself

  • Your gender:
  • Your age group:
  • Number of office visits you've had in the last 2 years:

Finish Here

  • How would you like to confirm your survey information?
    Standard text messaging and data rates may apply.
Thank you for sharing your feedback about Dr. Gregory Johnson, MD.
Claim Your Profile
Are you Dr. Gregory Johnson, MD?
Respond to reviews, add information, and reach more patients. Claiming is free and only takes a minute.

Claim my profile

About Me

Languages Spoken
Spanish
Languages Spoken
Specialties*
Gastroenterology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • Northwestern University Feinberg School of Medicine
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Fellowship

Fellowship Hospital
  • Los Angeles County - USC Medical Center
    1977
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Johnson communicate via email?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson offer telehealth services or virtual visits?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson offer an online patient portal?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson have free onsite parking?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson offer weekend visits?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson offer evening visits?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Johnson accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Gregory Johnson, MD. To arrange an appointment, call the number on Dr. Johnson's profile.

Dr. Gregory Johnson, MD is affiliated with Ventura County Medical Center and Marian Regional Medical Center.

Yes, Dr. Gregory Johnson, MD holds board certification in Gastroenterology and Internal Medicine.

Hospital Affiliations

  • Ventura County Medical Center

    300 Hillmont Ave, Ventura, CA

  • Marian Regional Medical Center

    1400 E Church St, Santa Maria, CA