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Joseph Stephen Flanagan,  II, MD

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Joseph Stephen Flanagan, II, MD

Colon and Rectal Surgery, General Surgery

4.9
(150)

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

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

    Surgery (General Surgery)

    American Board of Surgery

    Patient Reviews

    OVERALL RATING

    4.9

    (150 ratings)
    36 reviews
    • 5.0
      Jun 20, 2026
      Absolutely 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.
    • 5.0
      Jun 20, 2026
      Everyone who knows what I went through knows Dr. Flanagan was my doctor throughout this process. Would recommend him over and over again.
    • 5.0
      Jun 18, 2026
      I was already a fan of Dr Flannigam and his staff. This visit and care for new issue reinforces it
    • 5.0
      Jun 16, 2026
      Best care and also listened
    • 5.0
      Jun 2, 2026
      Good