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Dr. Edward Onuma, MD
Gastroenterology* Age 67
Dr. Edward Onuma, MD
1.0 (1 Ratings)

Offers telehealth
Map Pin Small San Mateo, CA
Dr. Edward Onuma, MD is a Gastroenterologist in San Mateo, CA.
Dr. Edward Onuma, MD
1.0 (1 Ratings)

Dr. Edward Onuma, MD

Gastroenterology* Age 67
San Mateo, CA
Accepting new patients
36 years of experience

Offers telehealth

Dr. Edward Onuma, MD is a Gastroenterologist in San Mateo, CA.

About Dr. Edward Onuma, MD

Dr. Onuma graduated from STATE UNIVERSITY OF NEW YORK / HEALTH SCIENCE CENTER AT SYRACUSE. Dr. Edward Onuma, MD is a Gastroenterologist in San Mateo, CA and has 36 years experience. Dr. Onuma currently practices at Peninsula Gastrointestinal and is affiliated with Mills-Peninsula Medical Center. Dr. Onuma has experience treating conditions like Hemorrhoids, Gastroptosis, Heartburn, Diarrhea, Nausea, Abdominal Pain, Intestinal Diverticulosis, Diaphragmatic and Hiatal Hernia, Dysphagia, Unexplained Weight Loss and Constipation among other conditions at varying frequencies. Dr. Onuma's office accepts new patients and telehealth appointments. Dr. Onuma also speaks Japanese. Dr. Onuma is board certified in Gastroenterology and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Experience Check

Enter a condition or procedure
Hemorrhoids
Gastroptosis
Heartburn
Hemorrhoids
Gastroptosis
Heartburn
Hemorrhoids
Gastroptosis
Heartburn
Diarrhea
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Nausea
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Abdominal Pain
Intestinal Diverticulosis
Diaphragmatic and Hiatal Hernia
Dysphagia
Unexplained Weight Loss
Constipation
Colorectal Polyp
Gas-Bloat Syndrome
Anal or Rectal Pain
Barrett's Esophagus
Rigid Proctosigmoidoscopy
Manometry
Flexible Sigmoidoscopy
Liver Damage from Alcohol
Vomiting Disorders
Endoscopy
Anemia
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Gastrointestinal Bleeding
Duodenal Polypectomy
Stomach Stenosis
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Inflammatory Bowel Disease
Alcoholic Cirrhosis
Noninfectious Gastroenteritis and Colitis
Intestinal Ulcer
Intestinal Obstruction
Ulcerative Colitis
Colonoscopy
Gastritis
Reflux Esophagitis
Esophageal Motility Disorders
Metabolic Dysfunction Associated Steatotic Liver Disease (MASLD)
Esophagitis
Esophageal Ulcer
Gastroesophageal Reflux Disease (GERD)
Duodenal Ulcer
Cirrhosis
Gastric Ulcer
Irritable Bowel Syndrome
Intestinal Diverticulitis
Crohn's Disease
Pancreatitis
Duodenitis
Hepatitis B
Abdominal Aortic Aneurysm (AAA)
Acute Deep Vein Thrombosis (DVT)
Acute Gastritis
Acute Venous Embolism Thrombosis
Alcoholic Hepatitis
All Types of Food Poisoning
Aneurysm
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Aortic Aneurysm
Arteriovenous Malformation (AVM)
Ascites
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Atherosclerosis
Atherosclerosis of Aorta
Autoimmune Hepatitis
Benign Neoplasm of the Digestive System
Bile Duct Obstruction
Boerhaave's Syndrome
Bowel Strangulation
Celiac Disease
Chronic Deep Vein Thrombosis (DVT)
Chronic Gastritis
Colon Cancer
Congenital Achalasia
Congenital Anomaly Esophagus
Congenital Anomaly Intestine
Deep Vein Thrombosis (DVT)
Dehydration
Diffuse Esophageal Spasm
Dysentery
Embolism
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Enteritis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Diverticulum
Esophageal Varices
Familial Adenomatous Polyposis
Food Allergy
Food Poisoning
Gallstones
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Hepatitis B - Immune Response
Hepatitis C
Hepatorenal Syndrome
Hernia
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Hiatal Hernia
Hypokalemia
Ileus
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Indigestion
Infectious Diarrheal Disease
Intestinal Malabsorption Carbohydrate
Intestinal Prolapse
Ischemic Colitis
Lactose Intolerance
Liver Abscess
Mallory-Weiss Syndrome
Malnutrition
Neoplasm of Gastrointestinal Tract
Non-Neonatal Jaundice
Pelvic Abscess
Peptic Ulcer
Peripheral Arterial Disease of Extremities
Peripheral Nerve Disorders
Peripheral Vascular Disease (PAD, PVD)
Proctoptosis
Pyloric Stenosis
Rectal Prolapse
Rectal Ulcer
Renal Artery Arteriosclerotic Disease
Retroperitoneum Cancer
Ruptured Aortic Aneurysm
Salmonella Food Poisoning
Splenomegaly
Upper Digestive Tract Cancer
Varicose Veins
Venous Embolism and Thrombosis
Venous Insufficiency
Viral Enteritis
Viral Hepatitis
Visceroptosis
Vitamin B12 Anemia
Vitamin_Deficiency
Whipple's Disease
Colon Cancer Screening
Colorectal Cancer Screening
Fecal Impaction Removal
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
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Port Placements or Replacements
Screening Colonoscopy
Sigmoidoscopy
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Vascular Duplex Ultrasonography and Plethysmography
Wireless pH Testing

Accepted Insurance Plans

* Please verify this information when scheduling an appointment.
  • Trio ACO HMO
    Local Access Plus HMO
    Silver 70 PPO
    Access Plus HMO
    Platinum 90 PPO
    Bronze 60 SHOP PPO
    Access Plus Savenet HMO
    Blue High Performance Network EPO
    Bronze Full 4500 PPO
    Platinum Local Access + HMO 25 HMO
    Blue Shield of California
    Platinum Access+ 25 HMO
  • Premium
  • Northern CA Cigna + Oscar Open Access Plus EPO
    Northern CA Cigna + Oscar LocalPlus EPO
  • Blue Card High Performance Network HPN
    Blue Card PPO
  • Open Choice PPO
    Aetna
    Premier Care Network Plus - Innovation Health
    Savings Plus of CA EPO
    Choice Plus POS II
    Elect Choice (Open Access) EPO
    Managed Choice (Open Access) POS
    Deductible Plan CA Members Only HMO
  • Select PPO
    Advantage Preferred DirectAccess Plus PPO
  • Options PPO
    Nexus Open Access
    Choice Plus POS
    Navigate POS
    Navigate HMO
    Medica Choice
    SignatureValue - CA HMO
    SignatureValue Alliance
  • Advantage Health Solutions HMO
  • Curative EPO
    Curative PPO
    Curative PPO Plus
  • CA Employer Group Plans HMO
    SmartCare Network Large Group HMO
    CA Healthnet PPO
    CA WholeCare Network HMO
  • Open Access Plus
    Cigna PPO
  • Prudent Buyer Large Group CA PPO
    California Care Large Group HMO
    Prudent Buyer Individual CA PPO
    California Care Small Group HMO
    Prudent Buyer Small Group CA PPO
    Pathway EPO
  • Chinese Community Health Plan (CCHP)
  • Canopy Health HMO
  • First Health (Coventry Health Care) PPO
  • Choice POS
    National POS
    Choice Care PPO

Where Dr. Edward Onuma, MD Sees Patients

  1. 1 Peninsula Gastrointestinal
    100 S Ellsworth Ave Ste 507, San Mateo, CA 94401
    Icon Directions Right Arrow Directions Phone Icon (650) 342-7432
  2. 2 Peninsula Endoscopy Center LLC
    1720 El Camino Real Ste 100, Burlingame, CA 94010
    Icon Directions Right Arrow Directions Phone Icon (650) 342-7432

What Patients Say

Likelihood to recommend Dr. Onuma
1.0
Based on 1 Reviews
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1 Star (1)

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Patient Reviews
Jul 13, 2021
Incredibly inefficient front desk staff. Save yourself the headache and look for another GI doctor if you want to avoid scheduling, billing, getting lab results, etc. issues.
— Jul 13, 2021
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Telehealth Options
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(650) 342-7432

Meet Dr. Edward Onuma, MD

Languages Spoken
Japanese
Languages Spoken
Specialties*
Gastroenterology
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.
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Onuma communicate via email?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Onuma offer telehealth services or virtual visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Onuma offer an online patient portal?
1 user said yes.
Yes
(1)
No
(1)
Does Dr. Onuma have free onsite parking?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Onuma offer weekend visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Onuma offer evening visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Onuma specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
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Does Dr. Onuma specialize in working with seniors?
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Yes
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No
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Does Dr. Onuma specialize in couples therapy?
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(0)
No
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Does Dr. Onuma specialize in working with LGBTQ+ community?
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(0)
No
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Does Dr. Onuma accept insurance?
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(0)
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FAQs About Dr. Onuma's Practice

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. Edward Onuma, MD. To arrange an appointment, call the number on Dr. Onuma's profile.

Dr. Onuma frequently treats the following conditions: Hemorrhoids, Gastroptosis, Heartburn, Diarrhea, Nausea, Abdominal Pain, Intestinal Diverticulosis, Diaphragmatic and Hiatal Hernia, Dysphagia, Unexplained Weight Loss and Constipation. See more on Sharecare.

Dr. Edward Onuma, MD is affiliated with Mills-Peninsula Medical Center.

Yes, Dr. Edward Onuma, MD holds board certification in Gastroenterology.
Training & Medical Education
Medical Education
  • STATE UNIVERSITY OF NEW YORK / HEALTH SCIENCE CENTER AT SYRACUSE
    1990
Medical Education
Board Certifications
  • Gastroenterology
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.

Hospitals Where Dr. Edward Onuma, MD Practices

  • Mills-Peninsula Medical Center

    1501 Trousdale Dr, Burlingame, CA

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