Dr. William Hasler, MD

GastroenterologyMaleAge 65

Gastroenterology

Dr. William Hasler, MD is a Gastroenterology Specialist in Ann Arbor, MI and has over 40 years of experience in the medical field. He graduated from University Of Pennsylvania / School Of Medicine in 1983. He is affiliated with medical facilities such as Beaumont Hospital, Grosse Pointe and Spectrum Health Pennock. His office accepts new patients and telehealth appointments.

Dr. William Hasler, MD

Michigan Medicine

1500 E Medical Center Dr Ann Arbor, MI 48109
Accepting new patients
Telehealth services available

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Telehealth services available

Accepting new patients

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Dr. Hasler's Reviews

Likelihood to recommend Dr. Hasler

4.7

Based on 10 ratings

5 Star
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4 Star
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3 Star
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2 Star
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RecentHighestLowestMost Helpful
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What all doctors should be
Dr. Hasler successfully diagnosed me with celiac disease long after many doctors would have sent me on my way with an IBS diagnosis. Thanks to him I was able to confidently adopt a gluten free diet and I got my health back. Years later, I still think about how lucky I was to get a doctor that was so knowledgeable about the space and willing to do the work to identify the problem. Throughout, he took the time to hear everything I had to say and explained all of the tests he was having done. My first appointment, one of the nurses warned me "Dr. Hasler is running way behind, so you'll be waiting a while, but it's because he's the best doctor here and he takes to time to talk to all of his patients", so I just made myself comfortable with a book. It was worth it. Dr. Hasler, I hope you read this someday so you know how grateful I am for you.
What went well
  • Staff friendliness
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
2 people found this helpful
Helpful
Sarah – Jun 28, 2022
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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.
4 people found this helpful
Helpful
Mar 16, 2019
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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.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
5 people found this helpful
Helpful
Shelley in Lapeer, MI – Apr 27, 2018
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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.
What went well
  • Appointment scheduling
  • Office environment
  • Staff friendliness
  • Wait times
  • Appointment wasn't rushed
  • Listened & answered questions
  • Explained conditions well
  • Trusted the provider's decisions
What could be improved
No results
5 people found this helpful
Helpful
Ypsilanti – Feb 28, 2018
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About Me

Biography

Dr. William Hasler, MD is a Gastroenterology Specialist in Ann Arbor, MI and has over 40 years of experience in the medical field. He graduated from University...Read more

Specialties

  • Gastroenterology

Board Certifications

  • Gastroenterology
  • Internal Medicine

Education

1983
University Of Pennsylvania / School Of Medicine
Medical School

Awards

Frequently Asked Questions

What is the best way to schedule an appointment with Dr. William Hasler, MD?

Find contact information here to make an appointment.

What other Gastroenterology Specialists practice nearby?

Click here to compare with other Gastroenterology Specialists.

Does Dr. William Hasler, MD accept any insurance plans?

A list of accepted insurance providers is available on the Healthgrades insurance check. It is always a good idea to verify your insurance when making an appointment.

What conditions does Dr. William Hasler, MD treat?

Dr. Hasler frequently treats the following conditions: Gastroparesis, Constipation, and Nausea. See more on Healthgrades.

What is Dr. William Hasler, MD's office address?

Dr. Hasler's office is located at 1500 E Medical Center Dr, Ann Arbor, MI 48109. You can find other locations and directions on Healthgrades.

Is Dr. William Hasler, MD able to provide telehealth services?

Dr. Hasler provides telehealth services. Please contact the office to determine whether you are eligible.

Is Dr. William Hasler, MD affiliated with any hospitals?

Dr. William Hasler, MD is affiliated with Beaumont Hospital, Grosse Pointe and Spectrum Health Pennock.

Is Dr. William Hasler, MD a board-certified professional?

Yes, Dr. William Hasler, MD holds board certifications in Gastroenterology and Internal Medicine.

How much experience does Dr. William Hasler, MD have?

Dr. Hasler has over 39 years of healthcare experience.

Experience and Background Checks

Experience
Background

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
Learn more about background checks

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

Constipation
very high
very high

Treatment Frequency

Dr. Hasler treats Constipation more than 98% of his peers

Dr. Hasler treats this condition more than 98% of his peers

Nausea
very high
very high

Treatment Frequency

Dr. Hasler treats Nausea more than 97% of his peers

Dr. Hasler treats this condition more than 97% of his peers

Dr. Hasler's conditions and procedures:

  • Abdominal Pain
  • All Types of Food Poisoning
  • Anal or Rectal Pain
  • Anemia
  • Barrett's Esophagus
  • Benign Neoplasm of the Digestive System
  • Celiac Disease
  • Cirrhosis
  • Colon Cancer Screening
  • Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
  • Colorectal Cancer Screening
  • Constipation
  • Crohn's Disease
  • Dehydration
  • Diaphragmatic and-or Hiatal Hernia
  • Diarrhea
  • Diffuse Esophageal Spasm
  • Diverticulitis, Intestinal
  • Diverticulosis, Intestinal
  • Duodenal Polypectomy
  • Duodenal Ulcer
  • Duodenitis
  • Dysentery
  • Dysphagia
  • Endoscopy (Esophagus, Stomach, Small Intestine)
  • Enteritis
  • Eosinophilic Esophagitis
  • Esophageal Motility Disorders
  • Esophageal Ulcer
  • Esophageal Varices
  • Esophagitis
  • Familial Adenomatous Polyposis
  • Food Poisoning
  • Gallbladder Scan
  • Gallstones
  • Gas-Bloat Syndrome
  • Gastric Ulcer
  • Gastritis
  • Gastroesophageal Reflux Disease (GERD)
  • Gastrointestinal Bleeding
  • Gastrointestinal Malabsorption
  • Gastroparesis
  • Giardiasis
  • Heartburn
  • Hemochromatosis
  • Hemorrhoids
  • Hepatitis A Screening
  • Hepatitis B Virus Screening
  • Hepatitis C
  • Hepatitis C Virus Screening
  • Hepatitis Screening
  • Hepatorenal Syndrome
  • Hernia
  • Hiatal Hernia
  • Ileus
  • Impedance Testing
  • Indigestion
  • Inflammatory Bowel Disease
  • Instrumental Diagnostic Evaluation for Dysphagia
  • Intestinal Obstruction
  • Irritable Bowel Syndrome
  • Ischemic Colitis
  • Lactose Intolerance
  • Liver Damage from Alcohol
  • Liver Function Test
  • Malnutrition
  • Manometry
  • Mesenteric Panniculitis
  • Nausea
  • Non-Alcoholic Fatty Liver Disease
  • Noninfectious Gastroenteritis and Colitis
  • Pancreatitis
  • Peptic Ulcer
  • pH Probe
  • Primary Biliary Cholangitis
  • Pyloric Stenosis
  • Reflux Esophagitis
  • Screening Colonoscopy
  • Stomal Ulcer
  • Ulcerative Colitis
  • Ultrasound, Endoanal
  • Ultrasound, Esophageal
  • Unexplained Weight Loss
  • VAP Lipid Testing
  • Viral Enteritis
  • Viral Hepatitis
  • Viral Infection
  • Vomiting Disorders
  • Wireless pH Testing

Insurance Check

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Dr. Hasler accepts

Accepted insurance can change. Please double-check when making an appointment.

(734) 647-5944

Dr. Hasler accepts the following insurance:

Aetna
Choice Plus POS II
Anthem
National (BlueCard) PPO
Anthem Blue Cross Blue Shield
Anthem Blue Cross Blue Shield PPO
Blue Cross Blue Shield
Blue Card PPO
CareFirst Blue Cross Blue Shield
HealthyBlue 2.0
HealthyBlue Advantage
Cigna
Cigna HMO
Cigna PPO
Open Access Plus
First Health
First Health (Coventry Health Care) PPO
MultiPlan
MultiPlan PPO
Priority Health
Priority PPO

Locations

Practice

Michigan Medicine1500 E Medical Center Dr Ann Arbor, MI 48109
1
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2