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William Haynal, MD

William Haynal

Asante employed provider

William Haynal, MD

Patient Rating
4.86 / 5 (Based on 221 reviews) Read Patient Experiences

Sleep Medicine

Sees Children

Services offered

Sleep Medicine

Locations

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 of all ages with sleep-related health issues and chronic sleep disorders.

Services

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

Personal

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

Education and training

Education

Loma Linda University School of Medicine, M.D.

Residency

Dartmouth Hitchcock Medical Center, Sleep Medicine

Fellowship

Dartmouth Hitchcock Medical Center, Sleep Medicine

Certifications

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

September 27, 2025
A few months back I had issues with a [ ]. Dr. Haynal and his staff were exceptional as all of us worked with the [ ] so I could receive this [ ]!
September 24, 2025
The care I received from the entire office, from Dr. Haynal and his staff was exceptional.
September 11, 2025
Dr Haynal is great and his assistant Stephanie is superb! She was very helpful when I was having challenges getting the tele=med appointment up and running. She's always efficient, friendly, and helpful, along with being engaged in me and my care needs. Way to go, Stepanie!
September 10, 2025
Dr Haynal has been a wonderful doctor to work with regarding my [ ]. He listens well and has always been so helpful and kind.
August 30, 2025
This sleep doctor enabled me to [ ]. He saw the opportunity for me and was firm yet helpful in how he carefully structured his instructions to me. I was mad that I would have to do this because going [ ] but I tried it and was able to [ ] and no longer rely on [ ]. I explained what I did to a friend and she tried it and cured her [ ].
August 24, 2025
My continuation of care regarding my [ ]. I'm very grateful.
August 23, 2025
Dr Haynal is excellent as a sleep care specialist. Knowledge caring and attention to detail but is much appreciated
August 20, 2025
I have always been impressed with how down to Earth Dr. Haynal is, and how supportive he is for my care.
August 20, 2025
Mr. [ ] (spelling?) ensured my [ ] was ordered priority and that it was filled within 6 hours of submission.
August 16, 2025
Everyone was kind, courteous, and knowledgeable
August 13, 2025
Dr Haynal and his assistant went out of their way to [ ] cushion as mine had unfortunately been [ ]. He also spent extra time explaining my [ ] and why he was making some adjustments to the air flow. I feel fortunate to be his patient and recommend him highly!
August 13, 2025
Dr. Haynal is an amazing provider and person. Very thoughtful and extremely healthy. My husband, who was at home agrees that he seems like a very kind person and so helpful. He never ceases to amaze me.
August 02, 2025
The Doctor / Provider is great and also the office personnel are helpful and ready to Assist …
July 31, 2025
Dr. Haynal provided excellent care and developed a comprehensive care plan. He listened, educated, and demonstrated genuine interest and caring.
July 31, 2025
I have never met Dr. Haynal face to face. It's always been through a [ ]. The last time was my choice because of travel. I think he has a great personality and I appreciate what he does for me and how he helps me. He has a great sense of humor and it's very easy to talk with. He and I are working on a possible another avenue for my health that I have to make some decisions on my own first, but I appreciate the fact that he is willing to work with me. I think he's very knowledgeable and I'm glad that I'm his patient. Probably by the original
July 30, 2025
Dr Haynal and his nurse were excellent.
July 23, 2025
Dr Haynal’s nurse was exceptional
July 23, 2025
Dr Haynal‘s assistant was very nice
July 23, 2025
I appreciate my care I receive from Dr Haynal. He is through in his care. We discuss changing my [ ] to better my outcomes. I will follow-up with an additional test before my next visit.
July 16, 2025
Dr. Haynal, Couldn't ask for anything more from my sleep doctor. [ ]
July 15, 2025
Kathy was wonderful during my [ ]. She explained everything very well, made sure I was comfortable and had everything I needed. Dr. Haynal was friendly and thorough, though in the end there wasn't much he could do to help me. I have taken several of his suggestions, though!
July 09, 2025
I am very happy with Dr. Haynal as my provider for [ ]. He is very attentive and pleasant to talk to, and I feel that he listens to my concerns and answers my questions at all times. He is patient and considerate with regards to my ailments. I feel comfortable in his care.
July 05, 2025
Dr Haynal is so caring, helpful, proactive and kind. He explains so well. He kindly discusses my overweight problems without shaming me. Stephanie his assistant is so awesome, helpful, outgoing. Thank you
July 03, 2025
All the staff that I have dealt with have been very professional and understanding.
July 02, 2025
Dr. Haynal was a very good listener And ask questions to better understand my condition.
July 01, 2025
Sleep lab technicians were professional and courteous
June 30, 2025
When I went in, everybody was polite. Clear in their their expectations and my expectations and I got good care. They made it really easy to get and give information so that I could get the best care I got.
June 30, 2025
Dr. Haynal is awesome!!!! So are the staff.
June 30, 2025
Starting with the checking in receptionist were excellent, the MA was excellent and personable as well, Dr. Haynal was exceptionally open and listen to my concerns and explained and was very clear in his response. Thank You
June 29, 2025
I’m just grateful for their knowledge and experience.
June 27, 2025
All of the staff from my provider to medical assistants and front desk staff are awesome. Everyone is very professional and helpful. Great department Sleep Specialists
June 27, 2025
Dr Haynal has been so helpful from first starting the process of sleep intervention. He is kind and respectful and has been so helpful in making changes to my [ ]. He has also provided helpful [ ]. Every time I have had an appt with him, I leave feeling very well cared for! He listens well to what I say. I feel very privileged to have him as a healthcare provider.
June 27, 2025
Taylor! S/he was so kind. S/he went out of their way to get me scheduled sooner. A pleasure to interact with, Both techs who help me during my [ ] were exceptional.
June 26, 2025
Stephanie in Dr. Haynal's Office. Knowledgeable, efficient, timely.
April 07, 2025
Stephanie
April 05, 2025
Dr. Haynal
April 01, 2025
Besides the doctor being very good the girl that set me up prior to my seeing the doctor had a great personality and was very kind and professional , the kind of employee we all look for
March 31, 2025
the nurse that provided care during [ ] at hospital was very effective.
March 30, 2025
Yes the doctor was very thorough
March 29, 2025
They are always there to answer any questions I may have
March 29, 2025
Helping and supporting people having difficulty and problems with [ ] and good health
March 27, 2025
I really do not like to fill out these evaluations. Plus, I have seen this doctor only twice, so my opinions should count very little.
March 12, 2025
Mitc and Taylor were very helpful.
March 08, 2025
Dr Haynal is always so helpful and kind, never shamming. He gives needed suggestions ,ideas, advice. Very helpful and practical. Front office and medical assistants also kind, helpful, gentle and put me at ease and I'm an anxious / nervous person. Each and all wonderful
March 08, 2025
Dr. Haynal
March 05, 2025
Dr. Haynal was outstanding in reviewing my current medical status regarding [ ] and also advised me regarding Inspire as an alternative to [ ]. Based on his description, I will be pursuing the implant of Inspire and Dr. Haynal will send a referral for me to Dr. [ ] who will do the [ ]. I felt well taken care of by Dr. Haynal.
March 05, 2025
Dr. Haynal is outstanding, excellent and just the BEST!
February 26, 2025
I was very happy with my entire visit with the front desk the MA or the doctor. They were very thorough and open to listen to questions. I was very comfortable with my visit.
February 20, 2025
Dr. Haynal
February 19, 2025
The Sleep Specialists made me feel very comfortable staying the night. I was able to sleep well there.
February 17, 2025
Everyone in the office from the doctors to receptionist are great
February 13, 2025
Dr. Haynal and his assistant ~ don't recall his name at the moment ~ as well as Brittany from the actual sleep center have been outstanding, compassionate, caring and professional. Ready and willing to answer questions. Exemplary bunch! Thank you!
February 10, 2025
Dr. Haynal was very thorough and knowledgeable.
January 26, 2025
I have been totally impressed with the quality of treatment I have received from Dr. Haynal and his staff.
January 26, 2025
Dr Haynal was very professional and personal. He. Answered all my questions, listening closely and assisted in remotely adjusting my CPAP device.
January 22, 2025
the doctor and nurse
January 17, 2025
No I do not feel that my issue has been resolved. I did a [ ] the tech that assisted with that was professional and friendly. I don't feel a [ ] in the answer to my [ ].
January 15, 2025
Besides the Sleep specialist ( Dr Haynal) , his medical assistant was wonderful. She returned my call the same day!
January 12, 2025
Dr. Haynal was very attentive and listened to what I had to say.
January 08, 2025
I am very pleased with the service I receive from My Sleep Specialist
December 14, 2024
Stephenie R. VIA was very welcoming with her great smile and her professional way of assisting me
December 14, 2024
Dr. Haynal’s assistant who took my vital signs, the doctor, reception area staff, all were polite, kind and helpful.
December 12, 2024
I feel I have the best care here. Always have any issues addressed and provider asks questions I may not have thought of
November 28, 2024
The staff in the overnight sleep lab. Wnderful.
November 24, 2024
Dr Haynal
November 18, 2024
The specialists who were outstanding are, Dr Haynal, Dr Haynal's nurse Sarah, Nicole (sleep center study specialist Tech), Teresa (sleep study center coordinator). And Lea who is always at the check-in area . Lea has been so good whenever we need help or something explained and setting up appointments. These people were excellent in the care for my son, [ ]. Thank you to EVERYONE. We are so grateful to each of you.
November 17, 2024
Dr Haynal's medical assistant has always been very helpful in answering any questions that I may have had, or would look up and find resources to be able to answer any questions I had adequately. His staff including the front reception area staff have always been very kind and professional and truly listened to me if I had a concern or a question. I feel that I get excellent care and follow up from Dr Haynal. Thank you
November 16, 2024
Dr. [ ] and his Medical Assistant
November 13, 2024
Dr Haynal is always kind, patient, and respectful. He is excellent at explaining goals for my continued health plan.
November 13, 2024
Everyone was great
November 13, 2024
I am being surveyed to death. Please send no more and do not pester me when I don’t respond.
November 13, 2024
Great practice
November 02, 2024
I'm very satisfied with the care from Dr Haynal and every one of his staff.
November 02, 2024
No. All people in the office very polite, and Doctor Haynal very carefull and help me a lot.
October 31, 2024
This provider likes to reschedule appointments often. Had to reschedule 3 times before my last appointment. I wonder if these "specialists" actually create any cures, or do they only create customers.
October 24, 2024
Overall great experience!
October 23, 2024
Excellent care was provided.
October 23, 2024
They all are
October 23, 2024
Both Dr. Haynal & the phone assistant Melody (I believe that's her name).
October 23, 2024
Dr. Haynal’s nurse gave me an Evora mask she my other mask hurt my face where I had [ ]. Her name is Stephanie and she was so helpful. I got the opportunity to thank her in person last visit.
October 21, 2024
Everyone!
October 19, 2024
Very grateful to have Dr. Haynal as my sleep Dr.
October 17, 2024
very nice person easy to talk to , came up with solutions i needed to get over my fears of the cpap and gave me tips on how to better use it.
October 14, 2024
Dr. Haynal was extremely tuned in to my needs and offering differently options. I never felt rushed. He provided exceptional care.
October 14, 2024
Dr Haynal
October 08, 2024
Dr Haynal was prepared for my visit and explained my needs thoroughly. He was very patient and caring.
October 07, 2024
Everyone in this office has been helpful and courteous
October 05, 2024
Dr Haynal and receptionist were perfect.
October 04, 2024
Dr. Haynal was outstanding. He followed up on difficulties I was having getting appointments, and via MyChart answered several questions personally. I appreciate his reliability, care and professionalism.
October 03, 2024
Hello, I want to give a special recognition and gratitude to Dr Haynal, Erin and Leah. My son [ ] and I were taken care of, treated with utmost respect and helped us to feel like we were in a safe place. As all of you know, the stress and worry that comes with having a serious health condition and it even affecting a family member caregiver, you have helped us feel like we matter. Thank you Sincerely,[ ]
October 03, 2024
I was always treated kindly and with respect. Dr haynal tries to find new ways to help with the sleep problems and makes suggestions.
October 02, 2024
DR. HAYNAL'S ASSISTANT
October 02, 2024
Nurse is awesome
October 01, 2024
Dr. Haynal's post-appointment notes were thorough and much appreciated.
September 30, 2024
Nothing, thank you
September 21, 2024
Dr. Haynal's communication skills, kindness, and interest in me personally are so much appreciated. I often tell others how lucky I am to be his patient. I feel cared for and understood by him. He proactively asks questions based upon previous visits. He is courteous and thoughtful. I feel heard and understood by him. Even though this was a [ ], he maintains eye contact and speaks clearly. He has a very good video presence, and one feels like they are sitting across the desk from him. Dr. Haynal is EVERYTHING a provider should be.
September 11, 2024
Both doctor and Stephanie was wonderful
September 11, 2024
Everyone I have dealt with at this office has been pleasant to deal with. I especially remember the man (David?) who called me let me know I would need to take my machine in to the [ ] to get the card read. I see a lot of doctors and have had ones who ranged from absolute worst to absolute best. Dr. Haynal is truly is one of the best. I especially appreciate that he listens to my input respectfully and answers all my questions without ever giving the impression that he think I don't need to ask those questions or have them answered. (I had a former doctor tell me I asked too many questions and that I didn't need to know certain bits of information!) He also seems genuinely interested in my care and finding a solution to my [ ].
September 08, 2024
Dr. Haynal and his medical assistance are always easy to work with and explain in detail. Both my husband Gary and I go to Dr. Haynal . [ ]
September 07, 2024
Dr Haynal would be number one he knows everything about me and has always talk to me about things that we have spoken about in the past he remembers everything about my history medical situation it's amazing to me because sometimes I don't remember everything that he brings up to me and asks me questions about I think it's excellent I appreciate him very very much very nice soft spoken listens and is very knowledgeable about everything that's going on with me and other things that can help me get better and stay healthy thank you Dr haynal
August 30, 2024
The doctor was very nice, asked plenty of questions, made sure my [ ] was working well, and was very thorough, kind and pleasant.
August 28, 2024
In addition to the thorough visit I had with Dr Haynal, I was very happy with how hard receptionists worked to stay in touch with me to get a [ ] scheduled
August 28, 2024
The onsite tech was extremely kind and helpful.
August 28, 2024
Stephanie, the medical assistant is always so helpful and puts me at ease. Dr. Haynal is always so kind, knowledgeable, and helpful. He is truly outstanding how he treats, explains and helps. Dr. Haynal is outstanding, very attentive and human. Warm and kind and professional. VERY VERY HELPFUL!!!!!!!!
August 23, 2024
Dr. Haynal.
August 23, 2024
Dr Haynal and his staff
August 07, 2024
I like Dr Haynal and the team. It just seemed my referrals from my primary did not get to the right office in a timely manner. It took along time to get my initial appointment set and completed. That is not his fault or mine.
July 11, 2024
Everyone has gone out of their way to accommodate my [ ]. Arranging an at [ ] and because we live out of area, arranging [ ] visits on the phone. They've been wonderful on ordering the equipment and explaining the use and benefits and expectations of the cpap equipment [ ] now has.
June 30, 2024
Dr. William Haynal was incredibly helpful in getting me answers and helping me with understanding and accomplishing what I needed done. I really appreciate him!! Thank you so much!!
June 26, 2024
I always get clear and flexible instructions on connecting with the provider. I always feel heard and when I ask questions Dr. Haynal has the answers. I feel that the experience each time is helpful and productive and they are excellent at their jobs.
June 19, 2024
they are all very good
June 19, 2024
No one person but as a team they got me in for a consult quickly and accommodated my needs for a virtual visit. Initially I was contacted by this office to make sure I filled out paper work and scheduled. Other sleep offices didn't even call or follow up in any way. It's nice to feel taken care of.
June 19, 2024
The doctor and his support staff were all very pleasant and helpful with all my questions and care plan
June 17, 2024
The asst that took us back and gathered info re: medical and took vitals. I was nervous and she made me settle just by simple sharing conversation that really helped our me
June 15, 2024
Doctor was amazing, carring very helpful
June 15, 2024
OPPOSITE: Dr. Haynal sent me to [ ] for a [ ]. Couldn’t use it. [ ] said prescription for settings needed to be change. Dr. Haynal changed the prescription immediately. [ ] never changed the settings. I left messages with the local office, and spoke with [ ]. I was never able to use the [ ]. After 2 months, I gave up and returned the unused [ ]. They refuse to refund my copay. 4 different, contradictory reasons given. Rotech appears to be both incompetent (failed to adjust machine for 2 months) and dishonest ("reasons" for not refunding my copay are inconsistent and bogus). First appointment with Dr. Haynal [ ]. And still no treatment for my [ ]. I have lost a huge amount of confidence in both Dr. Haynal and Asante because I was sent to a provider who didn’t do their job and then stole my money. How can I trust other referrals?
June 13, 2024
Dr. Haynal is always professional, he takes the time to answer questions and explain information to me. I appreciate him very much.
June 13, 2024
The doctor and receptionists.
June 12, 2024
Stephanie and Will
June 09, 2024
I really value and appreciate the my chart feature.
June 07, 2024
I was happy with care
June 06, 2024
I was very happy with my appointment with Dr Haynal. Staff were very nice and helpful.
June 01, 2024
I love Dr Haynal. He is always pleasant and professional.
May 22, 2024
Julie [ ] Dr [ ]
May 18, 2024
DrHaynal
May 16, 2024
Dr Haynal and his staff have always been great.
May 16, 2024
They did a good job.
May 01, 2024
The doctor and his assistant were very kind and patient.
May 01, 2024
Dr. Haynal himself was outstanding and very caring and attentive. His medical assistant was very good also, was very kind courteous and appropriate. I believe her name is Stephanie.
April 20, 2024
Everything. Answers to questions easy. Good office staff. Super respectful.
April 17, 2024
I didn't want to do telehealth but to meet I surance requirements for timelyness with CPAP had to. Stephanie was so helpful band reassuring and Dr Haynal was outstanding, attentive, explained so well and super helpful. Thank you
April 08, 2024
Dr. Haynal has been very patient with us. He's also been very helpful and addressed all the concerns and issues.
April 07, 2024
Fairly reasonable person, but he’s a specialist and most questions seem to be from a primary careers
March 30, 2024
I told one doctor that it was nice to hear employees giggling and enjoying there job. It helped me relax
March 30, 2024
Dr. Haynal is exceptional in his listening skills. I feel like he takes what I say into account and is always willing to completely answer all of my questions. I wish all of my medical care providers were as awesome in these areas.
March 28, 2024
Only seen once a year. Always excellent service and care.
March 27, 2024
Dr. Haynal and Michael [ ]. They both listened to our problems and concerns about my grandson [Patient] who is Autistic and also has ADHD and is OCD. They enabled us to do a sleep study at home where [Patient] could be more calm and relaxed.
March 27, 2024
Dr Haynal was professional and personable. He took time to discuss test results and explain them so I understood.
March 27, 2024
Dr. Haynal was exceptional in meeting my needs. He took care of immediately adjusting my cpap remotely in response to a problem I was having before my scheduled appointment. Then during the appointment, he carefully listened to my current problems and took every measure possible to solve the problem. I was extremely pleased because he really was determined to ensure that I feel my best.
March 23, 2024
when returning sleep maching receptionist saw me and offered to take upstairs which saved me time in the morning
March 07, 2024
Dr Handel is an excellent doctor he always knows what I'm there for and things that I need and if any changes need to be done I appreciate him very much thank you doctor
February 28, 2024
Everyone has been a great support and has taken care of me each time I have requested it.
February 28, 2024
Dr. Haynal,
February 22, 2024
Dr. Haynal
February 16, 2024
I enjoyed talking with Dr. Haynel.
February 08, 2024
Good attention and care from Asante Sleep Spcialists.
February 04, 2024
Dr, Haynal ALWAYS listens to me and gives me very good care.
February 03, 2024
Dr Haynal is excellent. Support staff are great too, but I see a different assistant every time so don't remember names.
January 31, 2024
Everyone was professional, friendly, and super respectful.
January 31, 2024
Receptionists helped me on the phone several times. They were very professional, understanding and did their best to deal with my issue. Beyond that, Office Manager (I believe that's her title) Evie stepped in and was exceptional in with her "follow up" toward resolving my issues! Cudos to Evie and all the call takers I've dealt with! I hope my comments will be passed on to all staff I've mentioned and posted in their workplace.

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