Lulu Guo, MD Profile Image

Lulu Guo, MD

Medical Reviewer
Board-Certified Sleep Medicine Physician

Biography

Dr. Lulu Guo is a board-certified sleep medicine and family medicine physician who specializes in diagnosing and treating sleep disorders, including obstructive sleep apnea, insomnia, and other sleep-related breathing conditions. She is known for taking a patient-centered approach to sleep care, helping individuals improve their overall health and quality of life through better sleep.

Dr. Guo completed the prestigious Medical Scholars Program at Michigan State University, where she was admitted into medical school at the age of 17 after completing her undergraduate studies in just two years. She earned her medical degree from Michigan State University College of Human Medicine before completing residency training at Hennepin Healthcare in Minneapolis.

She later pursued fellowship training in sleep medicine at the University of Michigan, where she developed specialized expertise in diagnosing and managing sleep disorders. Dr. Guo currently practices sleep medicine with Kaiser Permanente in Washington and has previously worked as a sleep physician and consultant at several sleep centers, helping patients manage complex sleep conditions.

Education

  • Medical Degree: Michigan State University College of Human Medicine
  • Residency: Hennepin Healthcare
  • Fellowship: University of Michigan
  • Board Certifications:
  • Family Medicine — American Board of Family Medicine
  • Sleep Medicine — American Board of Family Medicine

Read Dr. Guo's Latest Medically Reviewed Articles

A child peacefully sleeping on a pillow in a cozy indoor setting, wearing a striped long sleeve shirt.

August 3, 2026

Best Sleeping Position for a Child With Sleep Apnea

Sleep position can affect how your child breathes at night. Learn about the best sleeping positions for children with sleep…

Shallow Focus Photo of Woman in White and Black Stripe Shirt

May 14, 2026

TMJ and Sleep Apnea

Sleep apnea and TMJ have some similar symptoms and shared risk factors. Find out how they’re linked and how you…

man sleeping with a cpap mask on

May 14, 2026

Is CPAP Rainout Dangerous?

Rainout is a common (and harmless) issue for many CPAP users; luckily, it’s also an easy one to fix. Learn…

Woman Holding Her Nose Because of Sinus Pain due to Deviated Septum

March 23, 2026

Can a Deviated Septum Cause Sleep Apnea?

Is your deviated septum causing sleep apnea or making it worse? Learn how the two are related and what kind…

Woman visiting her doctor regarding sleep apnea solutions

March 23, 2026

CPAP vs. Oral Appliance

CPAP and oral appliances are two common treatments for sleep apnea. Compare how they work, their benefits, and which option…

a baby sleeping

March 19, 2026

Baby Snoring

Babies, just like adults, sometimes snore. Learn why babies make snoring, whistling, or grunting sounds in their sleep, when it’s…

man sleeping with a cpap mask on

March 4, 2026

Still Snoring With a CPAP Machine

If you’re still snoring with CPAP, you may need to address pressure settings, a mask leak, or other equipment issues…

Will Insurance Cover Ozempic for Sleep Apnea?

January 16, 2026

Will Insurance Cover Ozempic for Sleep Apnea?

Wondering about treatment options besides CPAP therapy? Learn about the alternatives to CPAP, how they work, and some of their…

A woman is snoring

April 24, 2026

How to Sleep When Someone Is Snoring

Sharing a bedroom with someone who snores can be a major barrier to a good night’s sleep. Research has found that…

Does Medicare Cover CPAP Machines?

December 18, 2025

Does Medicare Cover CPAP Machines?

Wondering if your insurance plan will cover CPAP equipment? Learn about whether Medicare, Medicaid, and other insurers cover CPAP machines…

How Much Does a CPAP Machine Cost Without Insurance?

March 4, 2026

How Much Does a CPAP Machine Cost Without Insurance?

Some people with obstructive sleep apnea lack insurance coverage and must purchase a CPAP machine without health insurance. Others opt…

Sleeping With Your Mouth Open

December 8, 2025

Sleeping With Your Mouth Open

Mouth breathing during sleep is common, but it can also potentially lead to dry mouth or worsen snoring. In many…

Do Nasal Strips Help With Snoring?

April 9, 2026

Do Nasal Strips Help With Snoring?

Nasal strips are a popular, drug-free option for reducing snoring, but how well they work depends on what’s causing the…

a woman snoring

March 4, 2026

Sleep Apnea Symptoms in Women

Sleep apnea is a common sleep disorder that can lead to serious health consequences when untreated. Research estimates “up to…

Woman sitting up in bed because she can't sleep

July 7, 2026

Sleep Disorders

Sleep disorders affect millions of people, reducing sleep quantity and quality. Learn about sleep apnea, insomnia, and others and how…

Sleep Apnea and CPAP Dictionary

April 9, 2026

Sleep Apnea and CPAP Dictionary

If you have sleep apnea, you may have heard some terms from your doctor that are new to you. Use…