What patients are saying
Overall rating
4.90
Average wait time
4.87
Bedside manner
4.95
“From the moment I walked in to the moment I checked out every staff member was professionally helpful, courteous, compassionate and kind. Dr Haas takes the time to actually listen and it is obvious that he truly cares about his patients. ”
Cecilia P.February 3, 2025
“I’ve been seeing Dr Haas as my Primary Care Provider for several years now and I couldn’t be happier with his knowledge, professionalism and bedside manner. When I see him for my annual check up I can tell he’s already done a thorough chart review, and his recommendations for how I can stay healthy are always helpful. I feel very fortunate to have Dr Haas as my doctor!”
Johnny B.August 28, 2024
About Dr. William Haas
William Haas is a dependable and accomplished family physician serving the community of Lutz, FL. Dr. Haas attended Michigan State University, where he received his medical degree, and completed his internship in pediatrics at Kalamazoo Center for Medical Studies. He then completed his residency in family medicine at MidMichigan Medical Center, Midland.
Dr. Haas is a part of BayCare Medical Group and is board certified by the American Board of Family Medicine.
Dr. Haas is devoted to ensuring the longevity of his patients’ health and developing long-lasting relationships with them. He takes his time to understand symptoms and give correct diagnoses to ensure the continued health of all his patients.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Medicare
UnitedHealthcare
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Coronary Artery Disease
Atrial fibrillation and atrial flutter
Osteoporosis
Chronic diabetes
Underactive thyroid
Chronic high blood pressure
Coronary Artery Disease
Atrial fibrillation and atrial flutter
Osteoporosis
Chronic diabetes
Office location
Education and background
Practice names
Hospital affiliations
- Saint Joseph's Hospital
Board certifications
- American Board of Family Medicine
Education and training
- Medical School - Michigan State University, Doctor of Medicine
- MidMichigan Medical Center, Midland, Residency in Family Medicine
- Kalamazoo Center for Medical Studies, Internship in Pediatrics
Languages spoken
- English
Provider's gender
Male
NPI number
1467424408
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.90
Wait time
4.87
Bedside manner
4.95
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
109 reviews
Most relevant
Dr Haas was incredibly knowledgeable and took the time to answer all my questions. Highly recommend! Also, friendly staff.
January 22, 2024Initials hidden
Always a great experience, takes plenty of time, never rushed and shows concern. I would never go to any other doctor
August 25, 2021Bruce W.Verified patient
Very personable and friendly along with being very knowledgeable. Can talk and ask questions about anything.
October 26, 2021Justin S.Verified patient
I have seeing this provider for almost ten years and always had a excellent experience. 1-15-24
January 15, 2024Richard L.Verified patient
Dr. Haas is the best primary physician I ever had. He is smart, empathetic and has a great memory.
August 10, 2021Charles K.Verified patient
Excellent doctor, that cares about his or her patient's health.
December 4, 2024Ingrassia I.Verified patient
Dr Haas is really good . I feel very comfortable with him
February 18, 2025ana J.Verified patient
Very good, knowledgeable doctor. Takes his time, listens, and is easy to talk to.
March 29, 2022Darren A.Verified patient
Dr. Haas is Always a Very Wonderful Provider!! Kudos to his marvelous Office Staff!!
May 28, 2020Alex H.Verified patient
Very professional staff. Minimal wait time. All my questions answered.
February 26, 2021Nancy F.Verified patient
-Excellent staff.
-Dr. Haas is very professional.
More than 1 year agoTS
Prompt.efficient. Listens and communicates well
August 1, 2025Thomas G.Verified patient
From the moment I walked in to the moment I checked out every staff member was professionally helpful, courteous, compassionate and kind. Dr Haas takes the time to actually listen and it is obvious that he truly cares about his patients.
February 3, 2025Cecilia P.Verified patient
I’ve been seeing Dr Haas as my Primary Care Provider for several years now and I couldn’t be happier with his knowledge, professionalism and bedside manner. When I see him for my annual check up I can tell he’s already done a thorough chart review, and his recommendations for how I can stay healthy are always helpful. I feel very fortunate to have Dr Haas as my doctor!
August 28, 2024Johnny B.Verified patient
Dr. Haas listens.
August 13, 2024Holly S.Verified patient
An efficient, friendly office. Dr Haas has been my primary care doctor for over 10 years and each visit is focused on me and my long-term health. I greatly appreciate everything he has done for me.
June 21, 2024Michael F.Verified patient
Dr. Haas was great and will continue to go back.
May 29, 2024Mark R.Verified patient
Dr. Haas is wonderful. He is very thorough and explains everything in detail to me. He provides options when available regarding treatments and/or medications.
April 14, 2023Initials hidden
Awesome! I love Dr. Haas
February 3, 2023Christine B.Verified patient
I find Dr Haas to be exceptional in every way. He is so personable, thorough and a wonderful listener. My entire family are patients of his.
August 16, 2022Irene D.Verified patient
Dr. Haas is very thorough and listens to your questions and then provides direct answers. The staff at this office is also extremely friendly and helpful.
More than 1 year agoInitials hidden
The ZocDoc appointment time didn't match what the doctors office had, ZocDoc had the appointment at 9am. The office had the appointment at 11am.
January 26, 2022Barry S.Verified patient
Efficient, thorough, friendly.
July 20, 2021Susan C.Verified patient
Dr Haas is so personable and takes the time to listen. I feel like he takes what I say into account. The staff is very friendly too!
June 4, 2021Lisa N.Verified patient
Known him for over 20 years, this most recent visit was a total waste of time ! Ten minutes and then moves along, I suspect that's Bay Care policy dictating that. Would not recommend !
May 4, 2021William J.Verified patient
Good doc and good experience.
More than 1 year agoMichael M.Verified patient
I walked out of this appointment feeling very good. Dr Haas is always very personable and thorough. He’s encouraging about the status of my health making sure I know all I need to know to keep healthy .
October 30, 2020Jill S.Verified patient
First time seeing Dr. Haas. Great bedside manners. He took the time to explain everything and I didn't feel rushed. Although I am a relatively new patient to the practice, he reviewed my chart and made some recommendations in addition to addressing the reason for my appointment. Very thorough.
More than 1 year agoInitials hidden
Dr Haas has always been honest and direct about his health assessments. He is also willing to listen and is great at explaining how and why medicines are needed and how they interact. Great Doctor!
August 19, 2020Allan G.Verified patient
Excellent Doctor. Dr. Haas explained all my bloodwork and spent time answering all my questions. It's been a long time since I have had a doctor that actually spent time with you and treated you like they care about you. I would highly recommend Dr. Haas.
May 29, 2020Cecelia T.Verified patient
I was so pleasantly surprised - not only was the office staff courteous, professional and efficient, but Dr. Haas was a breath of fresh air. He was very professional, but also so pleasant and warm. He didn't dumb anything down and explained issues in a way that made me feel respected. So happy to have found him!
February 6, 2018Nancy H.Verified patient
Great. Very informative.
More than 1 year agoEK
Very informative. Great bed side manner.
More than 1 year agoOM
Helpful.
More than 1 year agoBF
Dr. Haas provided excellent information on how to take care of myself. He explained what happened after taking antibiotics to take care of the acute priorities. Highly required recommend this office to anyone.
More than 1 year agoMC
Great! Nice Dr.
More than 1 year agoPB
Good.
More than 1 year agoTH
Less than 1 year agoInitials hidden
June 10, 2025Robert M.Verified patient
May 15, 2025William M.Verified patient
More than 1 year agoInitials hidden
More than 1 year agoInitials hidden
February 18, 2025Brad A.Verified patient
November 22, 2024Travis J.Verified patient
October 20, 2024Richard L.Verified patient
More than 1 year agoInitials hidden
August 21, 2024Darren A.Verified patient
More than 1 year agoInitials hidden
July 4, 2024Shmuel S.Verified patient
June 25, 2024Nicholas C.Verified patient
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How soon can I make an appointment with Dr. William Haas?
Generally, Dr. William Haas has appointments available on Zocdoc within 1 week. You can see Dr. Haas's earliest availability on Zocdoc and make an appointment online.
Is Dr. William Haas accepting new patients?
Dr. William Haas generally accepts new patients on Zocdoc. You can see Dr. Haas's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. William Haas accept my insurance?
Choose your insurance plan to verify if Dr. Haas is in-network.
Can I make an appointment with Dr. William Haas online?
Yes, you can make an appointment online with Dr. Haas using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. William Haas affiliated with?
Dr. William Haas is affiliated with Saint Joseph's Hospital.
What practice does Dr. William Haas work with?
Dr. William Haas works with BayCare Medical Group.
Where is Dr. William Haas's office located?
Dr. William Haas's office is located at 4211 Van Dyke Rd, Lutz, FL 33558.
Which board certifications does Dr. William Haas have?
Dr. William Haas is certified by American Board of Family Medicine.
What are common reasons for patients to see Dr. William Haas?
Dr. William Haas frequently sees patients for Allergy Consultation, Annual Physical, Arthritis, General Consultation, and Illness. You can see other visit reasons for Dr. William Haas on their profile.
What languages does Dr. William Haas speak?
Dr. William Haas speaks English.
How do patients rate Dr. William Haas in reviews?
109 patients have reviewed Dr. William Haas. The overall rating for this doctor is 4.9/5. They have a 4.95/5 rating for bedside manner and a 4.87/5 rating for wait time. You can read individual reviews and ratings on their profile.