Summary

Dr. Howard Cooper Masuoka treats cirrhosis, nonalcoholic fatty liver disease (NAFLD), and high cholesterol in children and teens. They practice gastroenterology and have 23 years of experience. Dr. Masuoka is affiliated with Indiana University Health Hospital, Sequoia Hospital, Stanford Hospital, Sidney and Lois Eskenazi Hospital, Lucile Salter Packard Children's Hospital at Stanford, Kaiser Permanente Redwood City Medical Center, Emanuel Medical Center, Stanford Health Care Tri-Valley, Stanford Health Care, and Stanford Medicine Pediatrics.

Dr. Masuoka earned their medical degree from the University of Alabama School of Medicine and sees patients in Pleasanton, California. They speak English and Spanish.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.1
  • 23 years of experience
  • speaks English, Spanish
  • University Of Alabama School Of Medicine
  • 1 written review
  • 2 specialties
  • 14 areas of expertise
  • 11 hospital affiliations
  • 1 office location

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Howard Cooper Masuoka

5565 W Las Positas BlvdPleasanton, CA 94588
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

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Howard Cooper Masuoka
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Howard Cooper MasuokaDr. David LimsuiDr. Sarah StreettDr. Afrin Kamal
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.1 
5 
4.2 
0 
23 Years of Experience 22 Years of Experience 35 Years of Experience 15 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English Speaks English, Spanish
Pleasanton , CAPalo Alto , CAStanford , CAStanford , CA
Med School: University Of Alabama School Of Medicine Med School: University Of Illinois At Chicago College Of Medicine Med School: Johns Hopkins University School Of Medicine Med School: University Of Missouri-Kansas City School Of Medicine
Current Profile
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Insurance Plans Accepted by Howard Cooper Masuoka

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Howard Cooper Masuoka has the following 2 specialties

Specialty Expertise

Howard Cooper Masuoka has the following 14 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Bile Duct Diseases
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Gastroenterologist
  • Hemorrhoids
  • Hepatitis
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Liver Cancer
  • Ulcerative Colitis

Certifications, License, & Education

23 Years Experience

Howard Cooper Masuoka holds expired and active medical licenses in the states of Indiana and California.

Medical License

Medical Doctor with an expired medical license in the state of Indiana that expired in 2025 and an active medical license in the state of California that expires in 2027.

Education & Training

Medical School

Graduated from University Of Alabama School Of Medicine in 2003.

NPI Number

Howard Cooper Masuoka's NPI number is 1770630162.

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Frequently Asked Questions

Is Howard Cooper Masuoka accepting new patients?
Howard Cooper Masuoka is accepting new patients on Vitals. View Howard Cooper Masuoka's profile on Vitals to make an appointment.
Does Howard Cooper Masuoka accept my insurance?
You can see the insurance plans that Howard Cooper Masuoka accepts on their Vitals profile.
How can I make an appointment with Howard Cooper Masuoka?
You can find contact information for Howard Cooper Masuoka here on Vitals.
Does Howard Cooper Masuoka accept virtual/telehealth appointments?
Howard Cooper Masuoka has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Howard Cooper Masuoka speak?
Howard Cooper Masuoka speaks English and Spanish.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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