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Joseph Stephen Flanagan,  II, MD

Accepting New Patients

Joseph Stephen Flanagan, II, MD

Colon and Rectal Surgery, General Surgery

4.9
(180)

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.

Areas of focus: Colon and Rectal Surgery, General Surgery

SPECIALTIES

  • Colon and Rectal Surgery

  • General Surgery

AFFILIATIONS

  • Atlantic Accountable Care Organization

  • Atlantic Medical Group

  • Chilton Medical Center

  • Morristown Medical Center

Where to see me

0

Education & Experience

TRAINING

Rutgers New Jersey Medical School

Medical School

Morristown Medical Center

Residency

Northwell Health

Fellowship

BOARD CERTIFICATIONS

Surgery

American Board of Surgery

Patient Reviews

OVERALL RATING

4.9

(180 ratings)
53 reviews
  • 5.0
    Dec 16, 2025
    Dr Flanagan's office helped us through out. Dr Flanagan was sensitive, knowledgeable, and thorough. Very pleased with the whole experience.
  • 5.0
    Dec 9, 2025
    Good Detailed explanations of services performed and future care.
  • 5.0
    Dec 9, 2025
    Very caring doctor
  • 5.0
    Dec 9, 2025
    My first experience with this doctor, and I was very impressed. I will definitely see him again, and recommend him to my friends.
  • 5.0
    Nov 22, 2025
    Doctor Flannigan is an expert! He is very easy to talk to about sensitive and embarrassing issues. He's easily understood and take time to listen to my concerns and Answered all my questions. He is an excellent surgeon.