Accepting new patients

Dr. William Hasler, MD

Gastroenterology ·  Male · Age 61

Dr. Hasler

Dr. William Hasler, MD is a gastroenterology specialist in Ann Arbor, MI and has been practicing for 30 years. He graduated from University Of Pennsylvania School Of Medicine in 1983 and specializes in gastroenterology and internal medicine.


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(734) 936-4000

Dr. Hasler accepts the following insurance:

Aetna
Choice Plus POS II
Blue Cross Blue Shield
Blue Card PPO
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
HAP Insurance
Preferred PPO
Humana
Choice Care PPO
MultiPlan
MultiPlan PPO
PHCS Network PPO
Priority Health
Priority PPO

Background Check

Healthgrades does not collect malpractice claims information for Michigan
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Experience Check

Check Dr. Hasler's experience treating your condition or procedure

Dr. Hasler's Top Procedures and Conditions

Treatment Frequency
Gastroparesis
very high
very high

Treatment Frequency

Dr. Hasler treats Gastroparesis more than 100% of his peers

Dr. Hasler treats this condition more than 100% of his peers

Diarrhea
very high
very high

Treatment Frequency

Dr. Hasler treats Diarrhea more than 96% of his peers

Dr. Hasler treats this condition more than 96% of his peers

Stomach Diseases
very high
very high

Treatment Frequency

Dr. Hasler treats Stomach Diseases more than 95% of his peers

Dr. Hasler treats this condition more than 95% of his peers

Dr. Hasler's conditions and procedures:

  • Abdominal Disorders
  • Abdominal Pain
  • Abscess
  • Anal or Rectal Pain
  • Anal Prolapse
  • Anemia
  • Anoscopy
  • Autoimmune Diseases
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Benign Tumor
  • Biliary Atresia
  • Blood Disorders
  • Cancer
  • Celiac Disease
  • Cholecystitis and Gallstones
  • Cholelithiasis
  • Cirrhosis
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Colorectal Cancer
  • Constipation
  • Copper Metabolism Disorders
  • Crohn's Disease
  • Dehydration
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dysphagia
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Enteritis
  • Esophageal Cancer
  • Esophageal Diseases
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroenterology Procedures
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Diseases
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Heartburn
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis B - Immune Response
  • Hepatitis C
  • Hernia
  • Ileus
  • Indigestion
  • Inflammatory Bowel Disease
  • Intestinal Abscess
  • Intestinal Ischemia
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Lactose Intolerance
  • Liver Damage from Alcohol
  • Malnutrition
  • Manometry
  • Mesenteric Panniculitis
  • Nausea
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Non-Neonatal Jaundice
  • Pancreatitis
  • Peptic Ulcer
  • Pyloric Stenosis
  • Reflux Esophagitis
  • Stomach Diseases
  • Stomal Ulcer
  • Ulcer
  • Ulcerative Colitis
  • Unexplained Weight Loss
  • Viral Enteritis
  • Viral Hepatitis
  • Viral Infection
  • Vomiting Disorders

About Me

Biography

Dr. William Hasler, MD is a gastroenterology specialist in Ann Arbor, MI and has been practicing for 30 years. He graduated from University Of Pennsylvania School Of Medicine in 1983 and specializes in gastroenterology and internal medicine.

Specialties

  • Gastroenterology
  • Internal Medicine

Board Certifications

  • Gastroenterology
  • Internal Medicine

Education

1989
University Of Michigan / Ann Arbor
Fellowship Hospital
1986
University Of Michigan / Ann Arbor
Residency Hospital
1984
University Of Michigan / Ann Arbor
Internship Hospital
1983
University Of Pennsylvania School Of Medicine
Medical School
1989
1986
1984
1983

Awards

Dr. Hasler's Reviews

Likelihood to recommend Dr. Hasler

4.7

Based on 9 reviews

5 Stars
88.88888888888889%
(8)
4 Stars
0%
(0)
3 Stars
0%
(0)
2 Stars
11.11111111111111%
(1)
1 Star
0%
(0)

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Dr. Hasler?
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Average Wait Time
  • 10 – 15 minutes
Dr. Hasler's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
What People Say About Dr. William Hasler, MD
RecentMost Helpful
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I have seen Dr Hassler a few times and he is amazing. Takes time with his patients and very knowledgeable about his field. He has helped me a lot and I feel Does what is is my very best interest to help me get better.
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Dr Hasler helped me when I felt I had no other choices in my healthcare. He always answers all my questions and has helped me learn and understand my health conditions. He diagnosed me with a few things when no other doctors had a clue of what was wrong with me.
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Dr. Hasler is excellent. He has helped me tremendously, diagnosed problems, and he is very friendly, and answers all questions I have. I never feel rushed.
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Affiliated Hospitals

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Michigan Medicine

Ann Arbor, MI

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