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Joseph Stephen Flanagan, II, MD
Colon and Rectal Surgery, General Surgery
Male
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About me
Joseph Flanagan II, MD, is a colorectal surgeon with Atlantic Medical Group, specializing in disorders of the gastrointestinal tract that require surgical intervention. He is board-certified in surgery by the American Board of Surgery and fellowship-trained in colon and rectal surgery. He treats a wide range of gastrointestinal conditions including the surgical management of colorectal cancer, diverticulitis, inflammatory bowel disease, and benign and malignant anorectal disease.
Dr. Flanagan uses advanced techniques in colon and rectal surgery including robotics, laparoscopy, and open techniques tailored to each patient’s needs. He also performs colonoscopies (screening and diagnostic) and anorectal procedures. He takes the time to listen to his patients, answer their questions, and personalize each treatment plan to put his patients at ease.
After earning his medical degree from Rutgers New Jersey Medical School, Newark, Dr. Flanagan completed his residency training at Morristown Medical Center, where he was named chief surgery resident, responsible for running the surgical services including colorectal surgery, general surgery, surgical oncology, vascular surgery, and trauma surgery. He was selected to be the morbidity and mortality chief resident and education chief resident. He then completed a fellowship in colorectal surgery at Zucker School of Medicine at Hofstra/Northwell Health, Hempstead, NY.
Dr. Flanagan has published on several topics related to colon and rectal pathology in peer-reviewed medical journals. He is a participating provider of the Atlantic Accountable Care Organization.
SPECIALTIES
Colon and Rectal Surgery
General Surgery
AFFILIATIONS
Accountable Care Organization
Atlantic Medical Group
Chilton Medical Center
Morristown Medical Center
Where to see me
Insurance
Please contact the practice to confirm your health plan is accepted.
Aetna
Aetna Better Health
AHS PPO
Amerihealth
Amerihealth Caritas
Brighton Create
Brighton Healthplan Solutions
Centivo
Cigna
ClaimDoc LLC
Education & Experience
TRAINING
Rutgers New Jersey Medical School
Medical School
Morristown Medical Center
Residency
Northwell Health
Fellowship
BOARD CERTIFICATIONS
Patient Reviews
4.9
- 5.0Jun 20, 2026Absolutely Amazing! Dr. Flanagan took the time to diagram what my insides looked like, what we were going to remove and how we were going to reattach everything.
- 5.0Jun 20, 2026Everyone who knows what I went through knows Dr. Flanagan was my doctor throughout this process. Would recommend him over and over again.
- 5.0Jun 18, 2026I was already a fan of Dr Flannigam and his staff. This visit and care for new issue reinforces it
- 5.0Jun 16, 2026Best care and also listened
- 5.0Jun 2, 2026Good
