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Dr. John Dalena, MD

Gastroenterology* Age 66
Dr. John Dalena, MD
4.9 (715 Ratings)

Offers telehealth

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Dr. John Dalena, MD is a Gastroenterologist in Florham Park, NJ.
Dr. John Dalena, MD
4.9 (715 Ratings)
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Dr. John Dalena, MD

Gastroenterology* Age 66
Florham Park, NJ
Accepting new patients

Offers telehealth

Dr. John Dalena, MD is a Gastroenterologist in Florham Park, NJ.

About

Dr. Dalena graduated from Rutgers New Jersey Medical School and completed a residency at Mount Sinai Hospital. Dr. John Dalena, MD is a Gastroenterologist in Florham Park, NJ. Dr. Dalena currently practices at Atlantic Gastroenterology at Summit Medical Group and are affiliated with Morristown Medical Center. Dr. Dalena has experience treating conditions like Intestinal Diverticulosis, Gas-Bloat Syndrome and Diarrhea among other conditions at varying frequencies. At present, Dr. Dalena received an average rating of 4.9/5 from patients and has been reviewed 715 times. Dr. Dalena's office accepts new patients and telehealth appointments. Dr. Dalena also speaks Italian. Dr. Dalena is board certified in Gastroenterology and accepts multiple insurance plans.

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Experience Check

Enter a condition or procedure
Intestinal Diverticulosis
Gas-Bloat Syndrome
Diarrhea
Intestinal Diverticulosis
Gas-Bloat Syndrome
Diarrhea
  • View other providers who treat Diarrhea
Abdominal Pain
Infectious Diarrheal Disease
Intestinal Diverticulitis
Colonoscopy
Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
Duodenal Polypectomy
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Colorectal Polyp
Gastroesophageal Reflux Disease (GERD)
Anal or Rectal Pain
Anemia
  • View other providers who treat Anemia
Barrett's Esophagus
Biliary Cirrhosis
Celiac Disease
Cirrhosis
Constipation
Diaphragmatic and Hiatal Hernia
Disorders of Zinc Metabolism
Dysphagia
E. coli Food Poisoning
Esophagitis
Gallstones
Gastric Ulcer
Gastritis
Gastrointestinal Bleeding
Heartburn
Hemochromatosis
Hemorrhoids
Hepatitis B
Hepatopulmonary Syndrome
Indigestion
Inflammatory Bowel Disease
Intestinal Fistula
Intestinal Obstruction
Intestinal Ulcer
Lactose Intolerance
Nausea
  • View other providers who treat Nausea
Non-Alcoholic Fatty Liver Disease
Noninfectious Gastroenteritis and Colitis
Primary Biliary Cholangitis
Reflux Esophagitis
Ulcerative Colitis
Unexplained Weight Loss
Vomiting Disorders
Endoscopy
Flexible Sigmoidoscopy
Manometry
Rigid Proctosigmoidoscopy
Acute Gastritis
Amebic Dysentery
Anal and Rectal Chlamydial Infection
Ascites
  • View other providers who treat Ascites
Benign Neoplasm of the Digestive System
Biliary Atresia
Cholangitis
Cholecystitis and Gallstones
Chronic Gastritis
Colorectal Cancer
Congenital Anomaly Esophagus
Crohn's Disease
Dehydration
Diverticulitis
Diverticulosis
Duodenal Ulcer
Duodenitis
Dysentery
Enteritis
Eosinophilic Esophagitis
Esophageal Achalasia and Cardiospasm
Esophageal Motility Disorders
Esophageal Varices
Familial Adenomatous Polyposis
Food Allergy
Gastrointestinal Malabsorption
Gastrojejunal Ulcer
Gastroparesis
Gastroptosis
Hepatitis A
Hepatitis B - Immune Response
Hepatitis C
Hernia
  • View other providers who treat Hernia
Hiatal Hernia
Hypokalemia
Ileus
  • View other providers who treat Ileus
Irritable Bowel Syndrome
Kaposi Sarcoma of Lymph Nodes
Liver Damage from Alcohol
Mallory-Weiss Syndrome
Malnutrition
Non-Neonatal Jaundice
Pancreatic Pseudocyst
Pancreatitis
Pelvic Abscess
Peptic Ulcer
Pernicious Anemia
Primary Sclerosing Cholangitis
Pyloric Stenosis
Pylorospasm
Rectal Ulcer
Retroperitoneum Cancer
Stomach and Small Intestine Cancer
Stomach Cancer
Upper Digestive Tract Cancer
Viral Hepatitis
Vitamin_Deficiency
Colon Cancer Screening
Colonoscopy With Polypectomy
Colorectal Cancer Screening
ERCP (Endoscopic Retrograde Cholangiopancreatography)
Gallbladder Scan
Hepatitis A Screening
Hepatitis B Virus Screening
Hepatitis C Virus Screening
Hepatitis Screening
Impedance Testing
Instrumental Diagnostic Evaluation for Dysphagia
Liver Biopsy
Liver Function Test
pH Probe
  • View other providers who treat pH Probe
Proctosigmoidoscopy
Screening Colonoscopy
Sigmoidoscopy
Ultrasound
Ultrasound, Endoanal
Ultrasound, Esophageal
VAP Lipid Testing
Wireless pH Testing

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Choice Care (Humana)
  • PPOBlue PPO
    PPOBlue
    Blue High Performance Network
  • HealthyBlue Advantage
  • Horizon Blue Cross Blue Shield PPO
    Horizon Blue Cross Blue Shield
    Horizon Blue Cross Blue Shield of New Jersey
    Direct Access PPO
    OMNIA - Tier1 EPO
    OMNIA HMO
    OMNIA
    Horizon Blue Cross Blue Shield POS
    Horizon Blue Cross Blue Shield HMO
    Direct Access
  • Oxford Health Plans
    Freedom
  • First Health (Coventry Health Care)
    First Health (Coventry Health Care) PPO
  • Emblem Health
    HIP Prime HMO
  • Open Choice
    Elect Choice (Open Access) EPO
    Premier Care Network Plus - Innovation Health
    Managed Choice (Open Access) POS
    Managed Choice (Open Access)
    Choice Plus POS II
    Aetna
    Open Choice PPO
    Select
  • Medicaid
  • Liberty Mutual Insurance Company
  • QualCare
  • MagnaCare
    MagnaCare PPO
  • Tricare
  • Harvard Pilgrim Health Care PPO
  • MVP Health Plan EPO
  • National (BlueCard) PPO
  • Local Value Network POS Plus
    Regional Preferred POS Plus
    Hospital Advantage EPO
    Amerihealth
  • MultiPlan PPO
  • American Republic
  • Choice Care Network PPO
    Choice Care PPO
    Choice POS
    Humana
  • Choice
  • Oscar Circle EPO
  • Medicare
  • Open Access Plus
    Cigna PPO
    Cigna
  • HealthFirst
  • Options
    Choice Plus
    Navigate
    Navigate POS
    Options PPO
    Navigate HMO
    United Healthcare
    Nexus Open Access
    Medica Choice
    Choice Plus POS
  • Blue Card High Performance Network HPN
    Blue Cross Blue Shield
    Blue Cross and Blue Shield
    High Performance Network - Tiered HPN

Locations

Patient Satisfaction

Likelihood to recommend Dr. Dalena
4.9
Based on 715 Reviews
5 Stars (677)
4 Stars (28)
3 Stars (1)
2 Stars (1)
1 Star (8)

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Patient Reviews
Mar 13, 2025
Friendly and helpful
— Mar 13, 2025
See more reviews on Healthgrades
Photo: Dr. John Dalena, MD
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Dr. Dalena's Office & Staff

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  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Dalena

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Dalena?
Call now to make an appointment
(973) 401-0500

About Me

Languages Spoken
Italian
Languages Spoken
Specialties*
Gastroenterology
Internal Medicine
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • Rutgers New Jersey Medical School
Medical Education

Board Certifications

Board Certifications
  • Gastroenterology, Gastroenterology and Internal Medicine
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Internship

Internship
  • Mount Sinai Medical Center
Internship

Residency

Residency Hospital
  • Mount Sinai Hospital
Residency Hospital

Fellowship

Fellowship Hospital
  • Rutgers New Jersey Medical School
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Dalena communicate via email?
5 users said yes.
Yes
(5)
No
(1)
Does Dr. Dalena offer telehealth services or virtual visits?
6 users said yes.
Yes
(6)
No
(1)
Does Dr. Dalena offer an online patient portal?
7 users said yes.
Yes
(7)
No
(0)
Does Dr. Dalena have free onsite parking?
11 users said yes.
Yes
(11)
No
(0)
Does Dr. Dalena offer weekend visits?
2 users said yes.
Yes
(2)
No
(3)
Does Dr. Dalena offer evening visits?
2 users said yes.
Yes
(2)
No
(1)
Does Dr. Dalena specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Dalena specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Dalena specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Dalena specialize in working with LGBTQ+ community?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Dalena accept insurance?
No responses yet.
Yes
(0)
No
(0)

Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. John Dalena, MD. To arrange an appointment, call the number on Dr. Dalena's profile.

Dr. Dalena frequently treats the following conditions: Intestinal Diverticulosis, Gas-Bloat Syndrome and Diarrhea. See more on Sharecare.

Dr. John Dalena, MD is affiliated with Morristown Medical Center.

Yes, Dr. John Dalena, MD holds board certification in Gastroenterology, Gastroenterology and Internal Medicine.

Hospital Affiliations

  • Morristown Medical Center

    100 Madison Ave, Morristown, NJ