Summary

Dr. John Hong specializes in gastroenterology and hospital medicine, bringing three decades of experience to digestive health care. He earned his medical degree from the University of Miami Leonard M Miller School of Medicine and has developed expertise in treating complex gastrointestinal conditions. Dr. Hong speaks Korean and Spanish, helping him connect with diverse patient communities.

Dr. Hong practices at multiple locations throughout Murrieta, Huntington Beach, Temecula, Los Alamitos, and Irvine, California. His hospital affiliations include Loma Linda University Medical Center Murrieta, UCI Health Los Alamitos, Temecula Valley Hospital, and Kaiser Permanente Orange County Irvine Medical Center. He focuses on treating conditions such as colon polyps, esophagitis, and GERD. His procedural expertise includes performing colonoscopies and both upper and lower gastrointestinal endoscopies to diagnose and treat digestive disorders. Patients rate him 4.1 out of 5 stars on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.1
  • 30 years of experience
  • speaks Korean, Spanish
  • University Of Miami Leonard M Miller School Of Medicine
  • 5 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 4 hospital affiliations
  • 10 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. John J Hong has 10 locations

United Gastroenterologists

28078 Baxter Rd Ste 530Murrieta, CA 92563
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

United Gastroenterologists

19582 Beach Blvd Ste 280Huntington Beach, CA 92648

United Gastroenterologists

40663 Murrieta Hot Springs Rd Ste C1Murrieta, CA 92562
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
Sat8:00 am - 12:00 pm
SunClosed

United Gastroenterologists

31469 Rancho Pueblo Rd Ste 101Temecula, CA 92592
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

United Gastroenterologists

3851 Katella Ave Ste 205Los Alamitos, CA 90720
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

United Gastroenterologists

16405 Sand Canyon Ave Ste 250Irvine, CA 92618
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

United Surgery Center Temecula

31469 Rancho Pueblo Rd Ste 100Temecula, CA 92592
Mon6:00 am - 3:00 pm
Tue6:00 am - 3:00 pm
Wed6:00 am - 3:00 pm
Thu6:00 am - 3:00 pm
Fri6:00 am - 3:00 pm
SatClosed
SunClosed

Hoag Hospital Irvine

16200 Sand Canyon AveIrvine, CA 92618

Uci Health Los Alamitos

3751 Katella AveLos Alamitos, CA 90720

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Dr. John J Hong, MD
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Dr. John J Hong, MDRebecca Humphries, APRNJan Seiler, APRNTheresa Obonyano, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
30 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Korean, Spanish Speaks English Speaks English Speaks English
Murrieta , CASacramento , CAMontgomery , ALSacramento , CA
Med School: University Of Miami Leonard M Miller School Of Medicine Med School: Emory University Med School: Georgia State University Med School: The University of Texas Health Science Center at Houston
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. John J Hong

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. John J Hong has the following 2 specialties

Specialty Expertise

Dr. John J Hong has the following 11 areas of expertise

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

Certifications, License, & Education

30 Years Experience

Dr. John J Hong holds an expired medical license in the state of California.

Medical License

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

Education & Training

Medical School

Graduated from University Of Miami Leonard M Miller School Of Medicine and University Of Miami Leonard M Miller School Of Medicine in 1996.

NPI Number

Dr. Hong's NPI number is 1023088630.

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Frequently Asked Questions

Where is Dr. John Hong's office located?
Dr. John Hong's office is located at 28078 Baxter Rd Ste 530, Murrieta, CA, 92563.
What languages does Dr. John Hong speak?
Dr. John Hong speaks Korean and Spanish.
Does Dr. John Hong accept my insurance?
You can see the insurance plans that Dr. John Hong accepts on their Vitals profile.
Is Dr. John Hong accepting new patients?
Dr. John Hong is accepting new patients on Vitals. View Dr. John Hong's profile on Vitals to make an appointment.
Which hospitals is Dr. John Hong affiliated with?
Dr. John Hong is affiliated with Loma Linda University Medical Center Murrieta, Uci Health Los Alamitos, Temecula Valley Hospital, and Kaiser Permanente Orange County Irvine Medical Center.

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