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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
(161)

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

  • 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

(161 ratings)
44 reviews
  • 5.0
    Feb 23, 2026
    Dr Flanagan is caring and attentive.
  • 5.0
    Feb 17, 2026
    Great patient/Dr./nurse relationship.
  • 5.0
    Feb 17, 2026
    Great team of Drs./nurses/receptionists.
  • 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.