1. Gastroenterologists
  2. MI
  3. Ann Arbor, MI

Dr. William Hasler, MD

Gastroenterology•Male•Age 64

Dr. Hasler
Accepting new patients
Telehealth services available

Michigan Medicine

1500 E Medical Center Dr Ann Arbor, MI 48109

Make an Appointment

(734) 647-5944
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(734) 647-5944

Dr. William Hasler, MD is a Gastroenterology Specialist in Ann Arbor, MI and has over 38 years of experience in the medical field. He graduated from University of Pennsylvania School of Medicine medical school in 1983. He is affiliated with medical facilities Bronson Methodist Hospital and University Hospital - University of Michigan. He is accepting new patients and has indicated that he accepts telehealth appointments. Be sure to call ahead with Dr. Hasler to book an appointment.

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Hospital Highlight

Dr. Hasler is affiliated with Bronson Methodist Hospital Kalamazoo, a highly rated hospital.

At a Glance

  • Explains Conditions Well
    Patients said this doctor explains conditions well. • See reviews
  • Offers Telehealth
    This provider offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America’s 100 Best Hospitals for Gastrointestinal Care Award™ • See hospitals

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

Learn more about Constipation
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

Learn more about Nausea
Learn more about experience ratings

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
  • Gastrojejunal Ulcer
  • 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
  • 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

Search for your insurance provider

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 (Coventry Health Care)
First Health (Coventry Health Care) PPO
MultiPlan
MultiPlan PPO
Priority Health
Priority PPO

Dr. Hasler's Reviews

Likelihood to recommend Dr. Hasler

4.7

Based on 9 ratings

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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Leave a review

How likely are you to recommend
Dr. Hasler?(Select your rating)
What went well
  • Appointment scheduling (6)
  • Appointment wasn't rushed (6)
  • Explained conditions well (6)
What could be improved
  • Didn't explain conditions well (1)
  • Didn't listen or answer questions (1)
  • Didn't trust the provider's decisions (1)
RecentHighestLowestMost Helpful
Reply
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.
What went well
No results
What could be improved
No results
2 people found this helpful
Helpful
Mar 16, 2019
×Post a ResponseAre you Dr. William Hasler, MD?
Reply
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
2 people found this helpful
Helpful
Shelley in Lapeer, MI – Apr 27, 2018
×Post a ResponseAre you Dr. William Hasler, MD?
Reply
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
3 people found this helpful
Helpful
Ypsilanti – Feb 28, 2018
×Post a ResponseAre you Dr. William Hasler, MD?

Leave a review

How was your experience with Dr. Hasler?

About Me

Biography

Dr. William Hasler, MD is a Gastroenterology Specialist in Ann Arbor, MI and has over 38 years of experience in the medical field. He graduated from University...Read more

Specialties

  • Gastroenterology

Board Certifications

  • Gastroenterology
  • Internal Medicine
Learn why a board certification matters

Education

1989
University of Michigan Hospitals
Fellowship Hospital
1986
University of Michigan Hospitals
Residency Hospital
1984
University of Michigan Hospitals
Internship Hospital
1983
University of Pennsylvania School of Medicine
Medical School
,

Awards

  • Healthgrades Honor Roll
Learn more about recognized doctors

Frequently Asked Questions

Does Dr. William Hasler, MD offer telehealth services?

Dr. Hasler has indicated that they offer telehealth. Contact the office to check for eligibility for your needs.

Is Dr. William Hasler, MD accepting new patients?

Dr. William Hasler, MD generally accepts new patients on Healthgrades. You can see Dr. Hasler's profile to make an appointment.

Does Dr. William Hasler, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Hasler accepts your insurance.

What are Dr. William Hasler, MD's top areas of care?

Dr. Hasler frequently treats Gastroparesis, Constipation, and Nausea. See all procedures and conditions Dr. Hasler treats.

Where is Dr. William Hasler, MD's office located?

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

How can I make an appointment with Dr. William Hasler, MD?

Find contact information here to make an appointment.

Locations

Practice

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

Affiliated Hospitals

Dr. Hasler is affiliated with the following hospitals. Select a hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Bronson Methodist Hospital

Kalamazoo, MI

80% Patient Experience Rating, 11% higher than the national average

3 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2021)

University Hospital - University of Michigan

Ann Arbor, MI

80% Patient Experience Rating, 11% higher than the national average

21 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2021)