Summary

Dr. John Oconnor is a board-certified gastroenterologist with over three decades of experience treating digestive system disorders. He earned his Doctor of Osteopathy degree from Philadelphia College of Osteopathic Medicine and completed his residency training at Lankenau Medical Center. With 32 years in practice, Dr. Oconnor brings extensive expertise to the diagnosis and treatment of gastrointestinal conditions. He is fluent in both English and Korean.

Dr. Oconnor maintains hospital affiliations with Jefferson Lansdale Hospital, Jefferson Einstein Montgomery Hospital, Suburban Community Hospital, and Grand View Hospital, with practice locations throughout Lansdale, East Norriton, Norristown, and Sellersville, Pennsylvania. His clinical focus includes treating colon polyps, gastritis, and diverticular disease. He performs specialized procedures such as colonoscopy, upper GI endoscopy, and lower GI endoscopy to diagnose and treat digestive health issues. Patients rate Dr. Oconnor 4.0 out of 5 stars on average.
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AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4
  • 32 years of experience
  • speaks English, Korean
  • Lankenau Medical Center
  • 2 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 4 hospital affiliations
  • 8 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. John James Oconnor has 8 locations

Us Digestive Health At Lansdale

815 Sumneytown Pike Ste 210Lansdale, PA 19446
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Jefferson Lansdale Hospital

100 Medical Campus DrLansdale, PA 19446

Jefferson Einstein Montgomery Hospital

559 W Germantown PikeEast Norriton, PA 19403

Grand View Hospital

700 Lawn AveSellersville, PA 18960

Us Digestive Health

190 W Germantown Pike Ste 110Norristown, PA 19401
Mon8:30 am - 4:30 pm
Tue8:30 am - 4:30 pm
Wed8:30 am - 4:30 pm
Thu8:30 am - 4:30 pm
Fri8:30 am - 4:30 pm
SatClosed
SunClosed

Lansdale Colonoscopy Center

815 SUMNEYTOWN PIKE STE 110LANSDALE, PA 19446
Mon7:30 am - 3:00 pm
Tue7:30 am - 3:00 pm
Wed7:30 am - 3:00 pm
Thu7:30 am - 3:00 pm
Fri7:30 am - 3:00 pm
SatClosed
SunClosed

Suburban Community Hospital

2701 Dekalb Pike Ste 202East Norriton, PA 19401

Suburban Community Hospital

2701 DeKalb PikeNorristown, PA 19401

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Dr. John James Oconnor, DODr. David S. WeinbergDr. Minhhuyen T. NguyenDr. Rafael A. Amaral, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
32 Years of Experience 37 Years of Experience 39 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Korean Speaks Spanish, Italian
Lansdale , PAPhiladelphia , PAPhiladelphia , PADarby , PA
Med School: Philadelphia College Of Osteopathic Medicine Med School: Weill Cornell Medical College Med School: Harvard Medical School Med School: Ponce School of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John James Oconnor

  • Accepts Medicare

Medical Specialties

Dr. John James Oconnor has the following specialty

Specialty Expertise

Dr. John James Oconnor has the following 10 areas of expertise

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

Certifications, License, & Education

32 Years Experience

MEDICAL LICENSE

Doctor Of Osteopathy, Pennsylvania, 2026, Active

EDUCATION & TRAINING

Residency

Lankenau Medical Center

Medical School

Philadelphia College Of Osteopathic MedicineGraduated in 1994

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Frequently Asked Questions

Is Dr. John Oconnor accepting new patients?
Dr. John Oconnor is accepting new patients on Vitals. View Dr. John Oconnor's profile on Vitals to make an appointment.
Where is Dr. John Oconnor's office located?
Dr. John Oconnor's office is located at 815 Sumneytown Pike Ste 210, Lansdale, PA, 19446.
Does Dr. John Oconnor accept my insurance?
You can see the insurance plans that Dr. John Oconnor accepts on their Vitals profile.
What languages does Dr. John Oconnor speak?
Dr. John Oconnor speaks English and Korean.
How can I make an appointment with Dr. John Oconnor?
You can find contact information for Dr. John Oconnor here on Vitals.

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