Dr. Daniel Kleiner, MD

Dr. Daniel Kleiner, MD

Complex General Surgical Oncology  |  
Male  |  
Age 46
Insurances AcceptedSave
Dr. Daniel Kleiner, MD is a complex general surgical oncology specialist in Danbury, CT and has been practicing for 8 years. He graduated from University Of Newcastle in 2000 and specializes in complex general surgical oncology, general surgery, and more.

111 Osborne St # 209

Danbury, CT 06810

Contact Information

(203) 739-7131

Insurance Accepted

  • Aetna
  • Beech Street (Multiplan)
  • Blue Cross Blue Shield
  • Cigna
  • Commercial Insurance Company
  • Connecticare
  • First Health (Coventry Health Care)
  • MagnaCare
  • Medicaid
  • 6 More

*Please verify this information when scheduling an appointment.

Learn about Dr. Kleiner

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Top Care Areas


See how frequently Dr. Kleiner performs your care needs compared to other doctors.

Stomach and Small Intestine Cancer
very high
more than 96% of peers
Stomach Cancer
very high
more than 94% of peers
Laparoscopic Surgical Procedure
more than 83% of peers

Dr. Kleiner's percentages are based on the rate of treatment compared to peers nationwide from insurance data. Learn more info about our data and this Top Care Areas component.

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Care Philosophy

This content was provided by Dr. Kleiner "As a surgeon, I embrace the multidisciplinary approach to ensure total care for all of my patients. I utilize minimally invasive surgery to help you return to your usual lifestyle quicker and more comfortably."


  • Complex General Surgical Oncology
  • General Surgery
  • Oncology

Board Certifications

  • General Surgery
    Accredited by: American Board of Surgery*

Conditions Treated


Read Less


  • Adrenalectomy
  • Advanced Laparoscopic Surgery
  • Bile Duct Procedure
  • Bone Marrow Biopsy
  • Colon and Rectal Surgery
  • Distal Pancreatectomy
  • Esophageal Surgery
  • Excision of Bile Duct Tumor
  • Excision of Rectal Tumor
  • Gastrectomy
  • Gastroenterology Procedures
  • Head and Neck Surgery
  • Laparoscopic Surgical Procedure
  • Laparoscopic Tumor Ablation, Liver
  • Liver Resection
  • Lung Surgery
  • Minimally Invasive Surgery
  • Open Tumor Ablation, Liver
  • Port Placements or Replacements
  • Removal of Reproductive Organs (Hysterectomy, Oophorectomy, Salpingectomy, Salpingo-Oophorectomy, Resection of Peritoneal Malignancy)
  • Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
  • Thoracentesis
  • Whipple Procedure

Background Check

0 Malpractice Claims

No malpractice history found for Connecticut.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Macalester College, St. Paul, Minnesota
    Undergraduate School | Graduated 1994
  • University Of St. Andrews, Scotland
    Undergraduate School | Graduated 1995
  • University Of Newcastle
    Medical School | Graduated 2000
  • Hunter Area Health Service, Australia
    Internship Hospital | Completed 2002
  • University Of Virginia
    Residency Hospital | Completed 2009
  • University Of Virginia
    Fellowship Hospital | Completed 2010
  • Washington University, St Louis
    Fellowship Hospital | Completed 2013
  • Faculty Clincial Instructor, University Of Virgina-Minimally Invasive Surgery
    Other Education | Completed 2012
  • Royal Australasian College Of Physicians
    Other Education | Completed 2009
  • Surgical Registrar, Division Of Surgery, Hunter Area Health Service, Australia
    Other Education | Completed 2004

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Kleiner has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Kleiner does not have any memberships or affiliations listed. If you are Dr. Kleiner and would like to add memberships or affiliations, please update your profile.

Dr. Kleiner's Reviews

Likelihood of recommending Dr. Kleiner to family and friends
based on 14 total reviews (12 with comments)

Likelihood to Recommend (14)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Kleiner's Performance

Explains condition(s) well
Answers Questions
Time well spent

Office & Staff Performance

Office environment
Staff friendliness
Average wait time
Under 10 minutes

Patient Comments (12)

in Southbury, CT
I don't think there are enough positive adjectives I can say about Dr. Kleiner. I have spent the last two years in and out of the hospital, had two unsuccessful surgeries by highly recognized Dr.s in major hospitals in Boston and New York. I had an appointment days after my initial call, and a...more
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in Danbury, CT
Dr. Kleiner is one of the kindest, knowledgeable doctors I have ever had. He took the time to explain everything to me and answered all my questions. He was very caring when I did not take my news especially well, and when he did my surgery, was there when I awoke to give me good news. I don't have...more
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in Wilton, CT
First visit Dr. Kleiner was thorough, clear, rational, open, and honest. He looked us in the eyes and shared his surgery statistics with us in an unblinking manner. His capabilities for what was to be a very complicated procedure seemed very clear to us, and in retrospect (after healing), we were...more
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in Southbury, CT
Very caring doctor. Keeps you informed and more than willing to answer any questions. Good bedside manner.
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