Medical leadership
Meet Dr. William Lu, our Medical Director
A sleep specialist who leads with care, clarity, and experience.
Dr. William Lu is a board-certified sleep medicine physician and serves as the Medical Director of Dreem Health. He guides our clinical team and ensures that every patient receives expert, thoughtful care.
With a background in both family medicine and sleep medicine, Dr. Lu brings a whole-person approach to sleep health. He completed his sleep fellowship at UCSF and has special interests in sleep apnea, restless leg syndrome, and the role of technology in improving care.
Our team of sleep specialists
The sleep specialists who'll help you feel like yourself again.
Dr. William Lu
Doctor of Medicine (MD)
Dr. Jamila Battle
Doctor of Medicine (MD)
Dr. Joshua Roland
Doctor of Medicine (MD)
Dawn Fitzgerald
Nurse Practitioner (DNP, FNP-BC)
Kelly Cranker
Nurse Practitioner (MS, ANP-BC)
Alexandra Rogerson
Nurse Practitioner (FNP-C)
Erin Comerford
Nurse Practitioner (MSN, MPH)
Teresa Gieszl
Nurse Practitioner (NP)
They listen, They explain, They care
And that’s what helps people sleep again.
200+ reviews
elisabeth cantrell
I have been with Dr Battle for awhile. Had several appointments and I can say that my sleep and overall health has improved. She listens, advises and genuinely cares... so happy I found this group of sleep/ apnea doctors
terri S
Dawn N.P. Has been my provider for my sleep issues for over 4 years. She is astute and well versed reviewing my past issues and inquiring about them to see if they are resolved. Of course she looks at my present problems and gives positive remarks for a job well done. ( compliance) Dawn had an easy going professional manner. Thank you, Dawn!
BLUERACCOON FRAMBOISE
The team is patient and kind. Help me find my diagnostic with complex schedule. Could not have wished better!
Zachary Lenhart
Karen was awesome and the process was easy. I now have a game plan, and it’s nice to not have to worry about going in somewhere with my busy schedule.
A Gary
Jenelle is a knowledgeable. very professional nurse. She explained my process well and ensured I understood my diagnosis. I highly recommend her for any sleep study needs.
Kate Hollis
I’d given up on finding a sleep doctor after several bad experiences, but wow am I glad I took a chance on Dreem Health. They use the latest tech and research to make the patient experience easier and more effective. Dr. Battle is a great listener, super knowledgeable, and incredibly supportive! I’m sleeping so much better now. Give them a try!
Mason Filitaula
Very very helpful. Dr. Cranker is the best. Broke down every read of the study and reassured my best interest on the whole experience. Thank you. GameChanger for sure🙏🏽👍🏽
Have any questions?
What type of providers will I see at Dreem Health?
You’ll be cared for by a team of licensed healthcare providers, including sleep doctors, nurse practitioners, and care coordinators. All are trained in sleep medicine and focused on helping you get the rest you need.
How much will my appointment cost?
If you’re using insurance, your costs depend on your plan, copay, and deductible — but we’ll verify everything in advance and let you know what to expect. If you’re paying out of pocket, our prices are simple and upfront. You can view our current rates , or email us anytime at hello@dreemhealth.com — we’re happy to walk you through it.
Are the sleep tests covered by insurance?
In most cases, yes. Coverage depends on your specific plan and whether a home sleep test or lab test is recommended. We’ll confirm all details with your insurer before moving forward.
How do I receive my home sleep test?
Once your provider orders the test and insurance is approved, we’ll ship the device directly to your home. You’ll get a tracking number so you know when it’s on the way.
Do you prescribe medication?
Yes. Our providers may prescribe non-controlled medications when clinically appropriate. All prescribing decisions are made by your licensed provider based on your individual medical evaluation and treatment plan. Your well-being is our top priority. Please note that we do not prescribe controlled substances like Adderall, Ambien, or Xyrem.
Still have questions?
We’re here to help. Reach out to our care team to get the answers you need.
Get in touch