Dr. William J. Giesen
- Gender: Male
- Experience: 46 years
- Graduated from: Georgetown University School Of Medicine
- Graduation year: 1975
- Sole propriator: Yes
- NPI: 1124104724
Dr. William J. Giesen M.D.
Internist
He is located at 1500 Post Road in Darien, CT 06820. Can help patients with the following: Asthma, Atherosclerosis, Cholecystitis, Heart Disease, Hot Flashes, Influenza. His National Provider Identifier (NPI) number is 1124104724. Appointment can be made via the phone number (203) 655-2516. He is affiliated with 1 practices and 2 hospitals.
Conditions treated
Dr. William James Giesen, being an internist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. William J. Giesen.
- Abdominal Pain
- Acute Pain
- Anemia
- Arthritis
- Asthma
- Atherosclerosis
- Bladder Control
- Chest Pain
- Cholecystitis
- Chronic Obstructive Pulmonary Disease (COPD)
- Common Cold
- Constipation
- Cystitis
- Diarrhea
- Edema
- Fever
- Gastroesophageal Reflux Disease (GERD)
- General Care
- Headache
- Heart Disease
- Hiatal Hernia
- High Blood Pressure
- Hot Flashes
- Hyperlipidemia
- Hyponatremia
- Influenza
- Inguinal Hernia
- Migraine
- Nausea and Vomiting
- Obesity
- Osteoporosis
- Peptic Ulcer
- Prescription Refill
- Urethritis
- Urinary Tract Infection (UTI)
Procedures Performed by Dr. William J. Giesen
Medicare Enrollment
Dr. William J. Giesen is enrolled to bill Medicare as a Practitioner - Internal Medicine .
Medicare practice location(s) (city/state/zip only, as reported to Medicare):
- DARIEN, CT, 06820
Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Studies
GEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated in 1975
Looking for more Internists?
Out of the 16 internists in this region, here are 10 randomly selected ones for you to explore.
- Gender: Female
- Address: 155 White Plains Road Tarrytown, 10591, NY
- Gender: Male
- Address: Suite 200 1500 Post Road Darien, 6820, CT
- Gender: Male
- Address: 40 Heights Road Darien, 6820, CT
- Gender: Female
- Address: 103 Stephen Mather Road Darien, 6820, CT
- Gender: Female
- Address: 1767 Summer Street Suite 1 Stamford, 6905, CT
- Gender: Female
- Address: Suite 100 1500 Boston Post Road Darien, 6820, CT
- Gender: Male
- Address: Suite 100 1500 Boston Post Road Darien, 6820, CT
- Gender: Female
- Address: Pediatric Cardiology 1500 Post Road Darien, 6820, CT
- Gender: Female
- Address: Suite 205 53 Old Kings Highway North Darien, 6820, CT
- Gender: Male
- Address: Suite 201 40 Heights Road Darien, 6820, CT
Questions & Answers
What conditions does Dr. William James Giesen treat?
Dr. William James Giesen provides treatment for Asthma, Atherosclerosis, Cholecystitis, Heart Disease, Hot Flashes, Influenza. For the full list see this list.
Does Dr. William James Giesen have affiliation with practices?
Dr. William James Giesen is affiliated with WCMG Norwalk Oncology & Hematology.
Has Dr. William James Giesen affiliation with hospitals?
Dr. William James Giesen is affiliated with STAMFORD HOSPITAL. For the full list of hospitals see this list.
Where can you meet with Dr. William James Giesen?
Dr. William James Giesen's office is located at 1500 Post Road in Darien, CT 06820.