William Haynal, MD - Asante

William Haynal, MD

William Haynal, MD

Patient Rating
4.77 / 5 (Based on 219 reviews) Read Patient Experiences

Sleep Medicine

  • Accepting new patients

Sees Children

Services offered

Sleep Center


Asante Sleep Specialists – Medford
555 Black Oak Dr. Suite 300B
Medford, Oregon 97504
Main: 541-789-8100
Fax: 541-789-8101

About this provider

Dr. Haynal specializes in providing advanced care to patients with sleep-related health issues and chronic sleep disorders.


  • Provides diagnosis and treatment of sleep disorders.
  • Manages complex and chronic sleep-related conditions.
  • Works closely with fellow physicians to deliver comprehensive care.


Outside the office, he enjoys travel, hiking and photography.

Education and training


Loma Linda University School of Medicine, M.D.


Dartmouth Hitchcock Medical Center, Sleep Medicine


Dartmouth Hitchcock Medical Center, Sleep Medicine


Dr. Haynal is board-certified in sleep medicine.

Many sleep problems have been built up over time and can be difficult to unravel. I believe in taking the time to get to the root of the issue, so that we can come up with the best solution for your long-term success.

Patient experiences

July 29, 2022
Dr. Haymaker and each staff member in his office.
July 22, 2022
no one stands out but they are all very good. I like that the doctor is on time and doesn't make you wait
July 18, 2022
All the staff
July 18, 2022
Both the office staff and Dr. Haynal were excellent.
July 14, 2022
All of my experiences with Dr. Haynal have been great. He was very informative and I felt respected to and listened to in both my appointments.
July 14, 2022
Dr. Haynal
July 08, 2022
Dr. Hynal is very understanding.
July 02, 2022
Dr. Haynall was very responsive in helping me establish new care when I move to CA.
July 01, 2022
I really like Dr Haynal. He is interested and patient with me. And has good feedback. I feel like he cares that I get good quality sleep.
July 01, 2022
Yes dr Haynal . He is concerned with getting an answer to my sleeping disorder as soon as possible.
June 30, 2022
The tech who conducted my [service] was friendly and informed and made me feel comfortable
June 28, 2022
The staff providing set up and care during the [service] were efficient, helpful and checked to make sure I was comfortable.
June 28, 2022
I think the staff is outstanding.
June 28, 2022
Tanya [ ]
June 28, 2022
Everyone at Dr. Haynal's office--including Dr. Haynal--has been outstanding.
June 28, 2022
Dr. Hynal is fantastic with answering questions. Thank you!
June 27, 2022
Dr Hynal was great
May 14, 2022
Their always great in all departments Lab, office ,nurses etc.
May 09, 2022
The whole staff were very attentive.
May 06, 2022
All contacts with this provider's office were excellent.
May 04, 2022
I thought this doctor did an outstanding job considering that we did this over the phone video conference he was able to answer all of my questions put my mind at ease. Also got a sleep study up and going for my son. He also was all over it we went to his office he had read his chart thoroughly from previous doctor notes. I really thought he did an amazing job very impressed with him and highly would recommend him to anyone.
May 01, 2022
Dr Haynal recently recommended a supplement to help me with restless legs. The day following my lab test he posted a long note in MyChart giving me specific comments and instructions for my situation. This was not cut and paste, general information, but written to meet my specific needs. I really appreciate the time and thought he put into my care. Thank You, Doc!
April 28, 2022
Dr. Haynal was not rushing to finish the visit. He seemed relaxed and let me ask as many questions as I needed.
April 28, 2022
Rosie P. She ran my sleep study. All things considered, it was a good experience.
April 22, 2022
Dr. Haynal is really good at prioritizing appointments. When there is a long wait it is for things like check ins, but when I have a pressing matter he always makes sure I get the care I need promptly. Some waits are really long, some are short- but I feel they are always an accurate reflection of how urgent my matter is. That is really hard to get in a doctor's office.
April 08, 2022
Dr Haynal
April 06, 2022
In general sleep study/ is always doing outstanding , but dr hynal goes beyond to help me like no one has yet..... great dr.
March 23, 2022
Everyone at the dental office where he sent me was helpful, professional, and very knowledgeable about his orders in my case.
March 20, 2022
The office staff are always nice and helpful.
March 02, 2022
Dr. Haynal has such a disarming and wonderful demeanor. He made consultation easy and relaxed.
March 02, 2022
Both Dr and Melinda were great
February 17, 2022
Brittany helped fit the mask. She was very professional as was the other woman with her (I cannot remember that lady's name). They made me feel very comfortable, took a lot of time fitting the mask, and answered all my questions.
February 12, 2022
February 12, 2022
Felt I received excellent care from them!
February 07, 2022
Dr. Haynel actually listens and pays attention to what I have to say....can't say that for most specialists.
February 07, 2022
Dr [ ] is fantastic. Dr Naydal is also fantastic!
February 06, 2022
Dr. Haynal. He was very thorough, patient, and listened carefully to me. He answered all my questions clearly.
January 27, 2022
They are all great.
January 23, 2022
I really appreciated Dr. Haynal asking if my [service] results had been explained to me well, and then taking the time to do that.
January 18, 2022
Dr. Haynal
January 14, 2022
Dr Haynal
January 14, 2022
Talking to this doctor, even on telephone, always makes me feel better. He is great.
January 13, 2022
The [diagnosis] staff were very professional
January 08, 2022
Seamed to care about my input.
January 08, 2022
Dr. Haynal is very thoughtful, thorough and knowledgeable. I really appreciate him!
December 27, 2021
My appointment was for [diagnosis]. I was very favorably impressed by the suggestions Dr. Haynal made and was very happy to learn that this is a recognized symptom. A future [service] will be a first step to hopefully finding a cause
December 20, 2021
The check in nurse was nice and professional.
December 13, 2021
Dr. Haynal was professional and efficient with all my healthcare.
December 10, 2021
I am very satisfied
December 09, 2021
Dr. haynal and staff have been great. Doctor especially does a great job, super friendly.
December 09, 2021
Dr. Haynal was awesome!
December 09, 2021
Dr Haynal has had the utmost patience with me and my struggles with technology for our virtual visits
December 09, 2021
Dr Haynal both listen to my concerns and helped me with my problem
November 30, 2021
I have had 2 gentlemen that have helped with the sleep study.Unfortunately I can't recall their names. They were attentive and made the processcomfortable and relaxed. Especially as they were attaching wires.
November 24, 2021
Dr. H is such an exemplary doctor. He listens and he's thoughtful and thorough.
November 14, 2021
Dr Haynal is always kind and informative. He never leaves me wondering. I would recommend him to family and friends
November 13, 2021
I really appreciated the care I have received from the Sleep Specialists. This was very important to my health and they took their work very seriously and listened to my concerns! Dr. Haynal and Kevin [ ] both did excellent work helping me to get the proper care!
November 10, 2021
When I would come in for sleep studies, I think I got Jamie as my technician. Jamie was very good at what he did hell is made me fall asleep when he was attaching the electrodes and I was able to get a good at least six hours sleep. Dr. Hynal is a very friendly knowledgeable and competent physician. He always had clear and concise answers for my questions and never made me feel like I was dumb cuz I didn't understand what he was saying. If I didn't get it he would say it a different way which helped me to understand. All in all I think doctor I know and Jamie should both get big fat raises!!! They made this process easy to go through and not scary at all! Thank you for asking my opinion I appreciate it!
November 06, 2021
All services were exceptional!
November 04, 2021
Sleep study technician was terrific.
November 04, 2021
Excellent help/care from office and from Doctor Nahal.
October 24, 2021
This was my first appointment with WILLIAM HAYNAL and I thought he did a great job.
October 24, 2021
This was my first visit and everything was just wonderful all my needs were met and all my questions were answered thank you.
October 21, 2021
So far everyone I spoke with or seen have been excellent , smiling ,personable and very helpful and patient with me my cane or walker as I'm pretty slow
October 20, 2021
Doctor took the time to explain things and help me understand.
October 13, 2021
Persistent efforts to isolate the causes contributing to my sleep difficulties
September 15, 2021
Dr explained my results in a manner I could understand. He answered questions I had and any future questions that may arise, he said to call. Was very helpful. Made me feel confident with my care.
September 02, 2021
Dr. Haynal, Chantal receptionist
August 22, 2021
All of them were. Thank you, [NAME]
August 21, 2021
August 19, 2021
Adam and Dr.Haynel
August 18, 2021
He was so nice and caring. Made me feel comfortable
August 18, 2021
Efficient care with warm personnel
August 18, 2021
Please note that I've only had one encounter with Asante Sleep Specialists and there has been insufficient time since then for me to rate the timeliness and effectiveness of any follow-up. Dr. Haynal seemed knowledgeable and the office staff were courteous when I called. That's about all I can say so far.
August 16, 2021
This recent virtual meeting with Dr. Hynal was regarding the Philips CPAP recall. That is the only time I interacted with him. I usually meet with [NAME], and I really like him and have gotten great care from him.
August 13, 2021
Dr Haynal was excellent, very pleased
August 06, 2021
Receptionist have been helpful
August 05, 2021
Dr Haynal
August 04, 2021
I enjoyed talking to the doctor.
August 04, 2021
Great experience
July 25, 2021
Dr. Haynal and staff were outstanding
July 22, 2021
Initial contact and one time telehealth conference
July 12, 2021
He was right there to tell me about my machine having a recall and concerns. He is always ontop of things. He is great.
July 12, 2021
Dr Haynal and his MA were very helpful and explained everything...actually dr Haynal helped me understand my cpap machine better than the people who set it up for me
July 11, 2021
Dr Haynal and all his staff are excellent. You see smiles, courtesy, respect, and very helpful.
July 11, 2021
I was treated very well. They were all exceptional.
July 10, 2021
Dr hynal
July 05, 2021
This was my first time to have a visit with William, as my normal provider [NAME] was not available. He was fabulous with taking his time with me and researching everything to help me. I was very concerned that I'm very tried and fell asleep driving on the freeway. I was just checking all options.
July 01, 2021
Dr. Haynal himself as well as his nurse and receptionist.
June 26, 2021
Dr. Haynal was quite good & responsive during our phone conference. Any questions to staff were answered quickly. The apnea test agent was efficient & attentive & friendly.
June 24, 2021
Dr. Haynal was outstanding. He listened carefully, made suggestions, was personable, informative, and really cared about how I was doing. Best Sleep Specialist I've ever had.
June 17, 2021
Dr. Hynal was very caring and listened and incorporated our concerns for my mom into his thinking about her health care. He got that we were pretty concerned about letting her sleep situation go on for a number of months before getting it treated and he provided us with two pathways for treatment - one which was more through and one which was faster. Really helpful. He has also been keeping in mind her need for supplemental oxygen and working that into his plan of treatment.
May 21, 2021
THOROUGH. I look forward to speaking with your professionals.
May 06, 2021
Dr. Heynal was very persistent and calling me back because the Telehealth phone call kept hanging up on us for one reason or another he called me back four times so that we can finish our appointment I would say that would fall into the excellent category. And he was very pleasant to talk to. Thank you.
May 05, 2021
Picking my equipment, I changed face masks. The people were friendly, helpful, and very knowledgeable. The doctor is extremely easy to talk to. He asks all the right questions. His recommendations have been a great help. Couldn't be happier with the treatment.
May 05, 2021
There isn't enough paper to list all.
May 03, 2021
Everyone was nice and respectful.
May 03, 2021
My mother and I both enjoyed working with Melodee [ ]. She was wonderful and thorough. She no longer is with Asante in Medford, but we are very thankful to have Dr. William Haynal!![ ]
April 23, 2021
Dr Hynal has been wonderful at working with me on solving my sleep apnea in the long run... due to physical and allergy problems. Thank you..
April 19, 2021
Whole staff.
April 12, 2021
each person was excellent and took appropriate time to be caring in their jobs
April 11, 2021
Dr. Haynal and his support staff.
April 09, 2021
I've had two appointments with Dr. Haynal. Find him to be thorough and informative.
April 08, 2021
Haynal's staff worked really hard and gettting me in on time, once I started nudging them. It took 3 mo to get in.
April 01, 2021
Doctor Haynal is by far the most professional Doctor I have ever had contact with. He is exemplary in his ability to listen, hear the patient and take appropriate notes that include what the patient states. I am a social worker. Doctor Haynal is rare. Most often, to often, Doctors are not ethical when writing their notes. He is spot on. He is unique in his ability to follow ethical practices and demonstrates a level of respect to the patient. As a social worker, I find this to be refreshing and reassuring that his patients, myself included are being provided with genuine services.
March 22, 2021
This was my first appointment and I've been using sleep therapy (CPAP) for many years. I really appreciated that Dr. Haynal took that experience into account and we had a meaningful discourse during the appointment.
March 07, 2021
Dr. Haynal is outstanding.
March 04, 2021
Most of my contact was with Lisa in scheduling and she is a great customer service rep.
February 25, 2021
Dr Haynal
February 25, 2021
The staff at the the Sleep study office was soo compassionate and understanding of my needs. My concerns were addressed promptly and my pathway to better health is do to that! Thank you Dr. Haynal and staff!
February 25, 2021
I thought he was very knowledgeable of my file and my circumstances.
February 25, 2021
Everybody I talked with were excellent.
February 25, 2021
Communication with my Neurologist (Dr. Nalla) would have been helpful.
February 15, 2021
I am impressed at how well everything fit together well. The tele conference and office contact with staff was very good.
February 11, 2021
Yes, Dr. Haynal. His care, concern, knowledge, and patience were all that one could expect.
January 27, 2021
Great experience
January 18, 2021
William was. He was very patient and listened to me on all my needs and concerns.
December 26, 2020
All staff and Doctors were excellent
December 24, 2020
Dr. Haynal clearly tries to find ways to help even beyond what is required or what could be reasonably expected.
December 24, 2020
Dr. Haynal
December 21, 2020
Did all they could to expedite scheduling of the sleep study! Thank-you :)
December 07, 2020
Dr. Haynal He answered all my medical and health concerns with great respect.Medical assistant LisaShe was kind and pleasant with every question I asked.
December 04, 2020
front desk at sleep study office helped me with billing and OHP. She supplied names and phone numbers to speed up the process.
December 03, 2020
The staff goes above and beyond to make sure the online visit goes as planned.
December 03, 2020
The follow up on CPAP download, which had to be done later by NW Medical - due to problem with chip, was outstanding.
November 28, 2020
Everybody I contacted.
November 27, 2020
Great experience overall
November 12, 2020
Dr. Haynal was a total blessing to me. I usually do not fill out surveys, but because his genuine care and concern and respect for me was so outstanding, I want to take the time now to fill out this survey on his behalf so that I might somehow bless him in return ... Thank you very much ... [NAME]
November 10, 2020
I don't remember specific names, however Dr. Haynals assistant was wonderful getting us hooked up for the latest telemed visit which was complicated because of a mixup with home telephone and cell numbers. Actually, all of the staff I have come in contact with have been patient, kind and a lot of other words I need a Thesaurus to describe.
November 06, 2020
first visit, Skype appointment worked ok
October 25, 2020
Dr. [ ] was the best! He and I connected--misplaced Easterners. It took me years to adjust to the West Coast's casual attitudes, e.g., work habits, timeliness.
October 25, 2020
This is a great team. I hope it stays this way.
October 16, 2020
My doctor [ ]
September 30, 2020
I am new to the area. I am a new patient of both Dr. Haynal and Dr. [ ]. Each of the two doctors--and every person who works in the offices of each of these doctors--has been exceptionally helpful.
September 28, 2020
Dr. Haynal went beyond the call to help with updates in My Chart and remotely adjusted my CPAP.Overall, all contacts and staff related have been outstanding in the therapy that is a new experience to me, great support.
September 18, 2020
Lauren was my Tech and he was kind, efficient and explained each step patiently and easy to understand.Then, I was visited in my home by Dan from Northwest Medical to set up the equipment I need. He was also friendly, patient and thorough.
August 27, 2020
Dr [ ] and also Dr Haynal
August 21, 2020
The ENTIRE Staff was helpful and very pleasant.
August 13, 2020
Everyone was fantastic
July 06, 2020
William Haynal, MD
July 06, 2020
Byron [ ] was a pleasure to meet. He was very patient, knowledgeable and we went over my sleep history in detail. He helped me to decide to try one more time at the Sleep Specialists to deal with the insomnia I have had for many years. There were just two things in the Appointment Details that I want to correct:. I did have success with sleep restriction at [ ] after six weeks of SR, however, several yrs. later I got sloppy and life happened, and I suffered again from insomnia.
June 12, 2020
telemedicine was great!
June 12, 2020
Dr haynal strives to serve well which i appreciate! He follows through too
May 19, 2020
Dr, Hayal is a very nice addition to the medical group. He is very kind, patient and listened carefully to my concerns. I never once felt judged or put off.Thank you, [NAME]
April 30, 2020
My initial appointment was set for [DATE], but the scheduling Staff was able to fill me into a cancellation quickly. I have been extremely impressed with the entire process so far. Everyone involved has been amazing.
April 30, 2020
This was my first medical appointment using FaceTime and for an appointment done this way Dr. Haynal did an excellent job. Another plus was that my wife could then also be involved which was helpful because she has experienced my incoherent and lack of breathing episodes, while I have no or little recollection.
April 29, 2020
This was only one first appointment and I was grateful to get in for a virtual appointment.
April 27, 2020
Dr. Haynal and Byron *(can't remember full name) were very kind and attentive.
April 25, 2020
I thought that the Doctor did a very commendable job of communicating with me about my condition, specifically about the REM Behavioral Disorder.


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