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36 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Whelan, Gastroenterologist in Danbury, CT?
Dr. Thomas Whelan, MD is a Gastroenterologist, who primarily practices in Danbury, CT with 1 additional practice location. He has been practicing for over 36 years and is board certified by the American Board of Internal Medicine. Dr. Whelan graduated from University of Vermont, College of Medicine, Burlington and completed his residency at Temple Univ Hosp, Gastroenterology; Thos Jefferson Univ Hosp, Internal Medicine. Dr. Whelan is fluent in English, Portuguese, and Spanish, and is currently seeing new patients. Dr. Whelan’s practice accepts Medicare, UnitedHealthcare, Aetna, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Whelan’s office at (203) 739-7038.
What are Areas of Expertise for Dr. Whelan?
Dr. Thomas Whelan, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Whelan empowers patients to confidently navigate their health journey, specializing in Barrett's Esophagus, Food Allergy, Gastroesophageal Reflux Disease (GERD), or comprehensive wellness support. Serving the Danbury/CT community, Dr. Whelan is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Whelan go to medical school and complete their residency?
Residency: Temple Univ Hosp, Gastroenterology; Thos Jefferson Univ Hosp, Internal Medicine | Temple University Hospital Program
Medical School: University of Vt Coll of Med, Burlington Vt | University of Vermont, College of Medicine, Burlington
Is Dr. Whelan board certified in Gastroenterologist?
Yes, Dr. Thomas Whelan, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Whelan speak?
Dr. Whelan and their clinical team can communicate with patients in the following languages:
English
Portuguese
Spanish
What conditions does Dr. Whelan treat?
As a Gastroenterologist, Dr. Whelan diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Whelan. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly.
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Acid Reflux
- GERD with Esophagitis
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Eosinophilic Esophagitis
- Gastroesophageal Reflux
- Heartburn
- Indigestion
- Reflux Esophagitis
- Acid Reflux Esophagus Inflammation
- Heartburn with Esophagus Damage
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
- K2100: Gastro-esophageal reflux disease with esophagitis, without bleeding
Also known as:
- Benign Transverse Colon Polyp
- Benign Ascending Colon Polyp
- Benign Cecum Polyp
- Benign Tumor
- Colonic Polyps
- Colon Polyps
- Non-cancerous transverse colon growth
- Transverse colon adenoma
- Transverse colon benign tumor
- Non-cancerous ascending colon growth
- Ascending colon adenoma
- Ascending colon benign tumor
- Non-cancerous cecum growth
- Cecal adenoma
- Cecum benign tumor
ICD-10 Codes:
- D123: Benign neoplasm of transverse colon
- D122: Benign neoplasm of ascending colon
- D120: Benign neoplasm of cecum
Also known as:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
Also known as:
- Ulcerative Colitis
- Ulcerative Pancolitis
- Colitis
- Inflammatory Bowel Disease (IBD)
- Chronic Colitis
- Chronic Pancolitis
- Extensive Ulcerative Colitis
ICD-10 Codes:
- K5190: Ulcerative colitis, unspecified, without complications
- K5100: Ulcerative (chronic) pancolitis without complications
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Diarrhea
- Loose stools
- Runny poop
- Frequent bowel movements
ICD-10 Codes:
- R197: Diarrhea, unspecified
Also known as:
- Large Intestine Diverticulosis
- Diverticulosis and Diverticulitis
- Diverticular Disease
- Colon Diverticula
- Pockets in the Colon
ICD-10 Codes:
- K5730: Diverticulosis of large intestine without perforation or abscess without bleeding
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
Also known as:
- Constipation
- Difficulty Passing Stool
- Infrequent Bowel Movements
- Hard Stools
ICD-10 Codes:
- K5900: Constipation, unspecified
Also known as:
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D509: Iron deficiency anemia, unspecified
Also known as:
- Family History of Digestive Organ Cancer
- Cancer
- Family History
- Genetic risk for gastrointestinal cancer
- Family history of GI cancer
- Hereditary digestive cancer
ICD-10 Codes:
- Z800: Family history of malignant neoplasm of digestive organs
Also known as:
- Stomach or Duodenum Polyp
- Stomach Disorder
- Gastric Polyp
- Duodenal Polyp
- Stomach Growth
ICD-10 Codes:
- K317: Polyp of stomach and duodenum
Also known as:
- Rectal Bleeding
- Gastrointestinal Bleeding
- Gastrointestinal (GI) Bleeding
- Anal Bleeding
- Blood in Stool
- Lower GI Bleed
ICD-10 Codes:
- K625: Hemorrhage of anus and rectum
Which procedures does Dr. Whelan perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Thomas Whelan may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Whelan's office.
Does Dr. Whelan accept my insurance?
Dr. Whelan accepts most major insurance plans. Important: Please call our office at (203) 739-7038 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Whelan accept in Danbury, CT?
Dr. Whelan in Danbury, CT accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Blue Cross and Blue Shield of North Carolina
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
EmblemHealth
Express Scripts
Humana
Medicare
State of Connecticut
UnitedHealthcare
View All Insurances
Where is Dr. Whelan's office located?
Dr. Thomas Whelan's Primary Practice
111 Osborne St Ste 121
Danbury, CT 06810
(203) 739-7038
What is Dr. Whelan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Whelan's National Provider Identifier (NPI) number is 1720043227.
What common questions do patients ask about Dr. Whelan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Whelan
What is Dr. Thomas Whelan's specialty?
Dr. Whelan is a Gastroenterologist near Danbury, CT. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Whelan to book an appointment today.
Is this Dr. Thomas Whelan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Whelan is affiliated with Danbury Hospital, New Milford Hospital which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Thomas Whelan accepting new patients in Danbury, CT?
Yes, Dr. Thomas Whelan is accepting new patients at this time.
Does Dr. Thomas Whelan offer online booking?
Please contact Dr. Whelan's office at (203) 739-7038 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Thomas Whelan?
Please contact Dr. Whelan's office at (203) 739-7038 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Thomas Whelan have?
Dr. Thomas Whelan is certified by the American Board of Internal Medicine.
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