Summary

Dr. Mazen Abbas is a gastroenterologist with additional training in pediatrics and preventative medicine who earned his Doctor of Osteopathy degree from Ohio University College of Osteopathic Medicine. With 23 years of medical experience, he brings extensive knowledge to treating digestive health conditions in patients of all ages. Dr. Abbas speaks English and combines his gastroenterology expertise with pediatric care and preventative medicine approaches.

Dr. Abbas practices at multiple locations including Kailua, Hawaii and Madera, California, with affiliations at Children's Hospital Los Angeles, Valley Children's Healthcare, and Kapiolani Medical Center for Women and Children. He specializes in treating constipation, chronic constipation, and changes in bowel habits. His procedural expertise includes performing colonoscopies, upper GI endoscopies, and laparoscopic procedures. Patients have given him an average rating of 3.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • 3
  • 23 years of experience
  • speaks English
  • Ohio University College Of Osteopathic Medicine
  • 2 written reviews
  • 3 specialties
  • 4 areas of expertise
  • 3 board certifications
  • 3 hospital affiliations
  • 2 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Mazen Issam Abbas has 2 locations

Adventist Health Castle

642 Ulukahiki St Ste 103Kailua, HI 96734
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Valley Childrens Healthcare

9300 Valley Childrens PlMadera, CA 93636

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Dr. Mazen Issam Abbas, DOJi Soo Choi, APRNDr. Arun Khazanchi, MDLarry Jay Shapiro
GastroenterologyGastroenterologyGastroenterologyPediatrics
Accepts New Patients Accepts New Patients
4.5 
23 Years of Experience 30 Years of Experience 55 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available No Virtual Visit Option
Speaks English Speaks English Speaks English, Spanish
Kailua , HISacramento , CALakewood Ranch , FLHonolulu , HI
Med School: Ohio University College Of Osteopathic Medicine Med School: New York University Med School: St Georges University School Of Medicine Med School: Washington University In St Louis School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Mazen Issam Abbas

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

Medical Specialties

Dr. Mazen Issam Abbas has the following 3 specialties

Specialty Expertise

Dr. Mazen Issam Abbas has the following 4 areas of expertise

  • Aerospace Medicine
  • Pediatric Gastroenterology
  • Pediatrics
  • Preventative Medicine

Certifications, License, & Education

23 Years Experience

Dr. Mazen Issam Abbas holds expired and active medical licenses in the states of Hawaii and California.

Medical License

Doctor Of Osteopathy with an expired medical license in the state of Hawaii that expired in 2026 and an active medical license in the state of California that expires in 2027.

Education & Training

Medical School

Graduated from Ohio University College Of Osteopathic Medicine in 2003.

NPI Number

Dr. Abbas' NPI number is 1790775278.

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Frequently Asked Questions

Is Dr. Mazen Abbas accepting new patients?
Dr. Mazen Abbas has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Mazen Abbas accept my insurance?
You can see the insurance plans that Dr. Mazen Abbas accepts on their Vitals profile.
What languages does Dr. Mazen Abbas speak?
Dr. Mazen Abbas speaks English.
How can I make an appointment with Dr. Mazen Abbas?
You can find contact information for Dr. Mazen Abbas here on Vitals.
Where is Dr. Mazen Abbas's office located?
Dr. Mazen Abbas's office is located at 642 Ulukahiki St Ste 103, Kailua, HI, 96734.

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