Summary

Dr. Masaharu Osato is a physician specializing in gastroenterology, internal medicine, and pediatrics. He earned his medical degree from Loma Linda University School of Medicine and brings over four decades of clinical experience to his practice. Dr. Osato speaks English and has dedicated his career to caring for patients across multiple age groups and medical conditions.

Dr. Osato practices at several respected medical facilities in Torrance, California, including Torrance Memorial Medical Center, Providence Little Company of Mary Medical Center Torrance, and Harbor UCLA Medical Center. His expertise includes treating chronic cough, persistent cough conditions, and hypertension. Patients have given him an average rating of 4.3 out of 5, reflecting their confidence in his care and clinical approach.

Overview based on verified provider data

Quick Facts

  • 4.3
  • 43 years of experience
  • speaks English
  • Loma Linda University School Of Medicine
  • 2 written reviews
  • 3 specialties
  • 12 areas of expertise
  • 3 board certifications
  • 3 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Masaharu Mike Osato has 3 locations

Harbor Ucla Medical Center

1000 W Carson StTorrance, CA 90502

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Dr. Masaharu Mike Osato, MDRachel Oliver, APRNChimdi Mfebe, APRNBhavana Akotia, PA-C
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
43 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
Torrance , CASACRAMENTO , CALittle Rock , ARTempe , AZ
Med School: Loma Linda University School Of Medicine Med School: University of South Alabama Med School: Chamberlain University College of Nursing Med School: Charles R Drew University
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Insurance Plans Accepted by Dr. Masaharu Mike Osato

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

Medical Specialties

Dr. Masaharu Mike Osato has the following 3 specialties

Specialty Expertise

Dr. Masaharu Mike Osato has the following 12 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Pediatrics
  • Ulcerative Colitis

Certifications, License, & Education

43 Years Experience

Dr. Masaharu Mike Osato holds an inactive medical license in the state of California.

Medical License

Medical Doctor with an inactive medical license in the state of California that expired in 2025.

Education & Training

Medical School

Graduated from Loma Linda University School Of Medicine in 1983.

NPI Number

Dr. Osato's NPI number is 1265470280.

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Frequently Asked Questions

Which hospitals is Dr. Masaharu Mike Osato affiliated with?
Dr. Masaharu Mike Osato is affiliated with Torrance Memorial Medical Center, Providence Little Company Of Mary Medical Center Torrance, and Harbor Ucla Medical Center.
How can I make an appointment with Dr. Masaharu Mike Osato?
You can find contact information for Dr. Masaharu Mike Osato here on Vitals.
Where is Dr. Masaharu Mike Osato's office located?
Dr. Masaharu Mike Osato's office is located at 1000 W Carson St, Torrance, CA, 90502.
Does Dr. Masaharu Mike Osato accept my insurance?
You can see the insurance plans that Dr. Masaharu Mike Osato accepts on their Vitals profile.
Is Dr. Masaharu Mike Osato accepting new patients?
Dr. Masaharu Mike Osato has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.

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