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Dr. Hasler accepts

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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

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

Treatment Frequency

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

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

Learn more about Diarrhea

Stomach Diseases

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

Learn why a board certification matters

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

Healthgrades Honor Roll

Learn more about recognized doctors

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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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

Dr. William Hasler, MD

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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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Mar 16, 2019

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Dr. William Hasler, MD

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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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Shelley in Lapeer, MI – Apr 27, 2018

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Dr. William Hasler, MD

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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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1

Ypsilanti – Feb 28, 2018

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