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John Dalena
out of 5
  • Gastroenterology
  • Cancer Services
  • Surgical Oncology
Accepting new patients

Locations

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140 Park Avenue Gastroenterology

140 Park Avenue
Florham Park, NJ 07932
United States

Clinical Expertise

  • ALCL
  • Abnormal weight loss
  • Abscess excision
  • Achalasia
  • Acute and chronic pancreatitis
  • Acute myelogenous leukemia (AML)
  • Additional / adjuvant therapy
  • Anal cancer
  • Anemia
  • Anticardiolipin antibodies
  • Antiphospholipid antibodies
  • Antithrombin III deficiency
  • Argon plasma coagulation hemostases of bleeding lesions
  • Aromatase Inhibitors
  • B12 deficiency
  • Bariatric surgery complications
  • Barrett's esophagus
  • Bile duct diseases
  • Biliary and pancreatic duct endoscopy (cholangioscopy and pancreatoscopy)
  • Biliary stricture
  • Bladder cancer
  • Bone density testing
  • Breast cancer
  • CMML
  • CT colonography
  • Capsule endoscopy
  • Celiac disease
  • Celiac nerve block to treat pancreatic pain
  • Chemoprevention
  • Chemotherapy
  • Chemotherapy clinical trials
  • Chemotherapy side effect support
  • Cholecystitis
  • Cholecystitis problems
  • Chronic gallbladder inflammation
  • Chronic lymphocytic leukemia (CLL)
  • Chronic myelogenous leukemia (CML)
  • Cirrhosis
  • Colon Bleeding
  • Colon and rectal bleeding
  • Colon and rectum problems
  • Colon cancer
  • Colon cancer surgery
  • Colon polyps
  • Colon resection
  • Colonoscopy
  • Colorectal Surgery
  • Complete Colon polyp resection
  • Complications from bariatric surgery
  • Constipation
  • Crohn's disease
  • Cyst excision
  • Deep vein thrombosis (DVT)
  • Diffuse large B-cell lymphoma
  • Digestive disease
  • Digestive problems
  • Diverticulitis
  • Diverticulosis
  • Duct blockage
  • Duodenal cancer
  • Dysplasia
  • ERCP
  • Endocrine tumors
  • Endoscopic Retrograde Cholangio Pancreatography
  • Endoscopic management after gastric bypass surgery
  • Endoscopic mucosal resection (EMR) and ablation for early GI tumors
  • Endoscopic retrograte cholangiopancreatography (ERCP) for benign and malignant disease
  • Endoscopic therapies for Barrett's esophagus
  • Endoscopic treatment of gastric diseases
  • Endoscopic ultrasound (EUS) to diagnose and stage GI and bile duct and pancreatic cancers
  • Endoscopic ultrasound for staging and fine-needle aspiration
  • Esophageal cancer
  • Esophageal disease
  • Esophageal tumors
  • Factor 5 Leiden
  • Follicular lymphoma
  • Gallbladder cancer / carcinoma
  • Gallbladder problems
  • Gallbladder surgery
  • Gallstones
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal bleeding
  • Gastrointestinal pain from malignancies
  • Gastrointestinal stromal tumor
  • Gastroparesis
  • Head and neck cancer
  • Heartburn
  • Hemachromatosis
  • Hemorrhoids
  • Hepatic tumors
  • Hepatocellular carcinoma
  • Hodgkin lymphoma
  • Hormone therapy
  • IBD
  • IBS
  • Immunotherapy
  • Indigestion
  • Inflammatory bowel disease
  • Interventional gastroenterology
  • Irritable bowel syndrome (IBS)
  • Laryngeal cancer
  • Leukocytopenia
  • Leukocytosis
  • Lipoma excision
  • Liver disease
  • Liver tumors
  • Lupus anticoagulant
  • Mantle cell lymphoma
  • Marginal zone lymphoma
  • Multiple myeloma
  • Myelodysplastic syndrome (MDS)
  • Myeloproliferative disorders
  • Nasopharyngeal cancer
  • Neoadjuvant chemotherapy
  • Neoplasm
  • Non-Hodgkin lymphoma
  • Non-cancerous tumor
  • Non-small cell lung cancer
  • Obesity
  • Oropharyngeal cancer
  • Ovarian cancer
  • PET
  • Pain Management
  • Pancreas divisum
  • Pancreas surgery
  • Pancreas: benign and malignant tumors
  • Pancreatic cancer
  • Pancreatic cysts
  • Pancreatic diseases
  • Pancreatic duct endoscopy (pancreatoscopy)
  • Pancreatic insufficiency
  • Pancreatic pain from malignancies
  • Pancreatic pseudocyst drainage
  • Pathology review
  • Peptic ulcer
  • Peritoneal cancer
  • Platelet disorders
  • Polycythemia vera (PV)
  • Polyp
  • Positron emission tomography (PET)
  • Post-cholecystectomy complication
  • Prostate cancer
  • Protein C deficiency
  • Prothrombin gene mutation
  • Pulmonary embolism (PE)
  • Radiofrequency ablation for Barrett's esophagus
  • Radiofrequency endoscopic resection for Barrett's esophagus
  • Rectal bleeding
  • Rectal cancer
  • Red blood cell disorders
  • Renal cell cancer
  • Risk-reduction medications
  • Skin cancer
  • Small bowel stenting
  • Small cell lung cancer
  • Stomach cancer
  • Stomach ulcers
  • Swollen glands
  • Tamoxifen
  • Thrombocytopenia
  • Thrombocytosis
  • Thrombophilia
  • Tonsillar cancer
  • Ulcerative colitis
  • Viral hepatitis
  • White blood cell disorders
  • acid reflux
  • anaplastic large-cell lymphoma
  • aplastic anemia
  • appendicitis
  • bile reflux
  • bloating
  • blood diseases
  • blood transfusions
  • bone marrow aspiration
  • bone marrow biopsy
  • cancer care
  • childhood obesity
  • chronic vomiting
  • colon screening
  • colorectal cancer
  • complete blood count
  • constant hiccups
  • cooley's anemia
  • cutaneous ALCL
  • dark or black stool
  • double contrast barium enema
  • endoscopy
  • extreme fatigue
  • frequent bruising
  • frequent fever
  • frequent nosebleed
  • gastric cancer
  • gastric emptying scan
  • gastric manometry
  • gastrinomas
  • gastrointestinal tumors
  • gi infection
  • helicobacter pylori
  • hemoglobin H disease
  • hemophilia
  • hydrops fetalis
  • intestinal parasite
  • iron level test
  • ischemic bowel disease
  • leukemia
  • lumbar puncture
  • lump in groin
  • lump in neck
  • lump under arm
  • lymphocytic leukemia
  • lymphoma
  • myelogenous leukemia
  • nonalcoholic fatty liver disease
  • nutritional deficiency
  • pain on left side of belly
  • pernicious anemia
  • radiation therapy
  • raised red bumps on skin
  • sepsis
  • severe pain in mid to upper abdomen
  • sickle cell anemia
  • soft tissue tumors
  • stem cell transplant
  • stool analysis
  • swollen lymph nodes
  • systemic ALCL
  • thalassemia
  • upper gi endoscopy
  • vomiting blood

Accepted Insurances

Always check with your health insurance carrier before scheduling any type of service. You can learn the details of your individual health insurance plan, including the amount of your copay, deductible, and coinsurance by visiting your health insurance company's website or by calling their customer service department. Click here to review our list of accepted insurance plans.

Aetna
  • Aetna Medicare PrimeAetna Signature Administrators
  • HMO
  • Meritain
  • Open Access
  • POS
  • AHS - SMG is Tier 1
  • APCN - Aetna Premier Choice Network
  • Axcel Choice POS II
  • Axcel Open Access
  • Choice POS II
  • EPO Select
  • HNO - Health Network Option
  • Liberty - SMG is Tier 1
  • Medicare Advantage - HMO, PPO
  • Choice
  • PPO
  • Signature PPO
  • Assure Premier Plus
AmeriHealth
  • EPO
  • PPO
  • HMO
  • POS
  • Open Access
  • Open Access Plus
  • Local Value
  • Tiered Advantage
  • Advantage
  • HMO Plus
  • POS Plus
  • Regional Preferred
Blue Cross and Blue Shield
  • Horizon BCBS NJ
  • Empire/Anthem BCBS PPO
  • Federal Program
  • Medicare Advantage
  • Out-of-State BCBS PPO Blue Card
Cigna
  • PPO
  • HMO
  • Open Access
  • Cigna Health Plan (CHP)
  • Choice Fund
  • Indemnity
  • International
  • Open Access Plus
CHN - Consumer Health Network
Clover Medicare Advantage
  • All Plans
Coventry Health Plans
First Health
  • All Plans with First Health Logo
Humana Medicare Advantage
  • PPO
Medicare
  • Traditional Medicare
  • Railroad Medicare
  • Medicare Supplemental Plans
  • Medicare Advantage PPO
Magnacare
  • All plans PPO
Multiplan/PHCS
  • Multiplan/PHCS logo on card - PPO
Oxford Healthplan
  • Freedom
  • Liberty
  • Medicare Advantage
OSCAR
  • Qualcare logo on card
  • OSCAR NJ Individual and Family Plan
  • OSCAR NJ PPO Plan
Qualcare
  • Qualcare logo on card
  • PPO
  • EPO
  • Community Care Network
  • Emblem Health (with Qualcare logo)
  • HIP Prime (with Qualcare logo)
Tricare
  • Traditional Plan
United Healthcare
  • AARP Medicare Complete - HMO, PPOChoice
  • Choice Plus
  • HMO
  • Navigate - EPO, HMO, POS
  • NY SHIP
  • PPO

Training and Education

Board Certification

  • American Board of Internal Medicine
  • American Board of Gastroenterology

Medical School

  • Alpha Omega Alpha Honor Medical Society, Rutgers Biomedical and Health Sciences (formerly UMDNJ), Newark, NJ

Undergraduate

  • Chemistry, With Honors, Rutgers University, Newark, NJ

  • Internal Medicine, Mount Sinai Medical Center, New York, NY

Fellowship

  • Digestive Diseases, Rutgers Biomedical and Health Sciences (formerly UMDNJ), Newark, NJ

About Me

John M. Dalena, MD, specializes in conditions and diseases of the esophagus, stomach, small intestine, large intestine, liver, gall bladder, and pancreas. Dr. Dalena also provides a wide range of gastrointestinal services, including cancer screening, nutritional support, therapeutic endoscopy, and colonoscopy.

In addition to his position at Summit Medical Group, Dr. Dalena is the former Director of Endoscopy at Morristown Surgical Center and Chairman in the Department of Gastroenterology at Morristown Medical Center in Morristown, New Jersey. He is an attending physician in the Department of Internal Medicine at Morristown Medical Center, Florham Park Endoscopy Center, Hanover Endoscopy Center, and Morristown Surgical Center. Dr. Dalena has practiced privately with Atlantic Gastroenterology in Cedar Knolls, Florham Park, Morristown, and Whippany, New Jersey.

He is a member of the American Medical Association, Medical Society of New Jersey, Morris County Medical Society, American College of Gastroenterology, and Alpha Omega Alpha Honor Medical Society. He is Past Chairman and a member of the Crohns and Colitis Foundation Medical Advisory Committee - New Jersey Chapter.

Dr. Dalena has earned the Morristown Medical Center Physician of the Year Award. He also earned the University of Medicine and Dentistry Fellowship Research First Prize Award and American College of Physicians - New Jersey Chapter Laureate Award for Outstanding Achievement in Medicine. He has been featured multiple times in New Jersey Monthly and Castle Connolly "Top Doctors" and "Top Doctors in the New York Metro Area" listings. Dr. Dalena is one of few physicians nationwide to earn Castle Connolly "Top Doctor" listings for more than 10 consecutive years. His "Top Doctors" listings are reprinted in Inside Jersey and US News and World Report.

When he is not working with his patients, Dr. Dalena is an avid runner and cyclist. He has completed many duathlons, triathlons, and marathons. A life-long resident of Morris County, Dr. Dalena lives in New Vernon, New Jersey.

English

Hospital Affiliations

  • Morristown Medical Center

Awards and Honors

  • Top Doctors 2020
  • Top Doctors 2018
  • Top Doctors Inside Jersey 2018
  • NJ Top Docs 2018
  • Top Doctors 2017
  • Inside Jersey Top Docs 2017
  • NJ Top Docs 2017
  • Top Doctors 2016
  • Top Doctors 2015
  • Top Doctors 2014
  • Castle Connolly Top Doctors

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