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19 providers
Availability last updated 06/05/2026
Dr. Puja Thakkar is a Bay Area native, sleep medicine specialist, and Medical Director of Golden Gate Sleep Centers, where she leads a growing team dedicated to delivering exceptional patient care across Northern California.
Driven by a belief that healthcare should be rooted in compassion, accessibility, and meaningful patient relationships, Dr. Thakkar founded Golden Gate Sleep Centers with a vision of creating state-of-the-art facilities where patients receive not only advanced diagnostic and treatment options, but also the time and attention they deserve.
Dr. Thakkar completed her Internal Medicine training at the University of California San Francisco (UCSF) Fresno Center for Medical Education and Research and went on to pursue fellowship training in Sleep Medicine at the University of California, Davis. Following fellowship, she served United States veterans through the VA system in Sacramento/Mather, where she had the privilege of caring for those who served our country.
Under Dr. Thakkar’s leadership, Golden Gate Sleep Centers has grown into a multidisciplinary organization of more than 50 professionals with a shared mission: improving sleep, health, and quality of life for the communities they serve.
Dr. Thakkar believes sleep medicine sits at the center of some of healthcare’s greatest challenges—including cardiovascular health, mental health, obesity, longevity, and overall wellness. Her philosophy is simple: when people sleep better, they live better.
Known for her patient-centered approach, Dr. Thakkar values the physician-patient partnership and believes trust is one of the most important parts of healing. To better serve diverse communities, she speaks Gujarati, Hindi, and conversational Spanish.
Beyond medicine, Dr. Thakkar understands that health does not exist in isolation from life itself. Life can be complicated. Raising children can be challenging. Relationships require work. Caring for aging parents can be emotionally and physically demanding. The realities people face every day often become invisible burdens they carry into the exam room.
Having experienced many of life’s challenges firsthand, including navigating the realities of chronic illness, Dr. Thakkar brings not only medical expertise but also personal understanding to the care she provides. She believes these experiences have made her a more compassionate physician, a better listener, and ultimately better equipped to care for the people who place their trust in her.
In her free time, Dr. Thakkar enjoys traveling and creating memorable experiences. Though she loves making plans with her partner, she’ll admit that some of her favorite evenings are the ones that get canceled—replaced by a cheese board, comfortable clothes, and a quiet night at home.
Dr. Puja Thakkar, DO
Sleep Medicine Physician
2222 Camino Ramon
San Ramon, CA 94583
Dr. Puja Thakkar is a Bay Area native, sleep medicine specialist, and Medical Director of Golden Gate Sleep Centers, where she leads a growing team dedicated to delivering exceptional patient care across Northern California.
Driven by a belief that healthcare should be rooted in compassion, accessibility, and meaningful patient relationships, Dr. Thakkar founded Golden Gate Sleep Centers with a vision of creating state-of-the-art facilities where patients receive not only advanced diagnostic and treatment options, but also the time and attention they deserve.
Dr. Thakkar completed her Internal Medicine training at the University of California San Francisco (UCSF) Fresno Center for Medical Education and Research and went on to pursue fellowship training in Sleep Medicine at the University of California, Davis. Following fellowship, she served United States veterans through the VA system in Sacramento/Mather, where she had the privilege of caring for those who served our country.
Under Dr. Thakkar’s leadership, Golden Gate Sleep Centers has grown into a multidisciplinary organization of more than 50 professionals with a shared mission: improving sleep, health, and quality of life for the communities they serve.
Dr. Thakkar believes sleep medicine sits at the center of some of healthcare’s greatest challenges—including cardiovascular health, mental health, obesity, longevity, and overall wellness. Her philosophy is simple: when people sleep better, they live better.
Known for her patient-centered approach, Dr. Thakkar values the physician-patient partnership and believes trust is one of the most important parts of healing. To better serve diverse communities, she speaks Gujarati, Hindi, and conversational Spanish.
Beyond medicine, Dr. Thakkar understands that health does not exist in isolation from life itself. Life can be complicated. Raising children can be challenging. Relationships require work. Caring for aging parents can be emotionally and physically demanding. The realities people face every day often become invisible burdens they carry into the exam room.
Having experienced many of life’s challenges firsthand, including navigating the realities of chronic illness, Dr. Thakkar brings not only medical expertise but also personal understanding to the care she provides. She believes these experiences have made her a more compassionate physician, a better listener, and ultimately better equipped to care for the people who place their trust in her.
In her free time, Dr. Thakkar enjoys traveling and creating memorable experiences. Though she loves making plans with her partner, she’ll admit that some of her favorite evenings are the ones that get canceled—replaced by a cheese board, comfortable clothes, and a quiet night at home.
Dr. Puja Thakkar, DO
Sleep Medicine Physician
39055 Hastings Street
Suite 106
Fremont, CA 94538
Errajith Bertrand Desilva, MD
Internist
2222 Camino Ramon
San Ramon, CA 94583
Meet Dr. Dulip Ratnasoma:
Dr. Dulip Ratnasoma is board-certified in Sleep Medicine, Internal Medicine, and Obesity Medicine. He completed his internal medicine residency at the University of Nevada, Las Vegas, and his fellowship in sleep medicine at the University of California, Los Angeles. Dr. Ratnasoma is passionate about treatment of sleep apnea, obesity hypoventilation syndrome, and restless leg syndrome. He is dedicated to integrating technology and digital health tools into his practice to enhance patient care and outcomes. He has been active with the American Academy of Sleep Medicine, serving as a contributing member of the Emerging Technology Committee. Outside of his professional pursuits, Dr. Ratnasoma enjoys golfing, playing tennis, and spending quality time with his family.
Dulip Ratnasoma, MD
Sleep Medicine Physician
2222 Camino Ramon
San Ramon, CA 94583
Meet Dr. Dulip Ratnasoma:
Dr. Dulip Ratnasoma is board-certified in Sleep Medicine, Internal Medicine, and Obesity Medicine. He completed his internal medicine residency at the University of Nevada, Las Vegas, and his fellowship in sleep medicine at the University of California, Los Angeles. Dr. Ratnasoma is passionate about treatment of sleep apnea, obesity hypoventilation syndrome, and restless leg syndrome. He is dedicated to integrating technology and digital health tools into his practice to enhance patient care and outcomes. He has been active with the American Academy of Sleep Medicine, serving as a contributing member of the Emerging Technology Committee. Outside of his professional pursuits, Dr. Ratnasoma enjoys golfing, playing tennis, and spending quality time with his family.
Dulip Ratnasoma, MD
Sleep Medicine Physician
39055 Hastings Street
Suite 106
Fremont, CA 94538
Errajith Bertrand Desilva, MD
Internist
39055 Hastings Street
Suite 106
Fremont, CA 94538
At Sleep Health MD, which has offices in Sunnyvale, Los Gatos, Santa Cruz and Watsonville, California, Dr. Aaron Morse has helped many area residents who suffered from sleep disorders. A sleep medicine, pulmonology, and internal medicine specialist, Dr. Morse has been helping patients sleep better for more than 30 years.
After graduating from the David Geffen School of Medicine at UCLA, Dr. Morse completed a residency in internal medicine and a fellowship in pulmonary disease at Cedars-Sinai Medical Center. Today, he is board-certified in internal medicine, pulmonary disease and sleep medicine by the American Board of Internal Medicine.
Thanks to his extensive training and experience, Dr. Morse is able to offer a number of different services. He helps patients with:
Over the course of his career, Dr. Morse has treated many patients. He’s honored that many of the patients he’s seen continue to recommend him to family and friends.
Dr. Aaron Morse, MD
Pulmonologist
260 South Sunnyvale Avenue
Suite 6
Sunnyvale, CA 94086
Many residents of Sunnyvale, Santa Cruz, Monterey, and Watsonville, California, have come to Sleep Health MD for help with sleeping problems. The team of doctors at the center provide a wide array of sleep medicine services.
Dr. Daniel Katzenberg, Dr. Aaron Morse, Dr. Zachary Adams and Dr. Sarish Nakka are all highly trained in their respective specialties and respected by their peers in the area. All four physicians are board-certified and have a lot of experience treating patients.
Because each doctor at Sleep Health MD has a unique background, the center is able to offer many different services and treatments. Some of the conditions they treat include the following:
Many of the patients who have come to Sleep Health MD have been successfully treated, and many of them recommend the center to others who have trouble sleeping.
Dr. Daniel Katzenberg, MD, PhD
Psychiatrist
260 South Sunnyvale Avenue
Suite 6
Sunnyvale, CA 94086
Dr. Sirish Nakka, MD
Sleep Medicine Physician
1665 Dominican Way
Suite 222
Santa Cruz, CA 95065
Many residents of Sunnyvale, Santa Cruz, Monterey, and Watsonville, California, have come to Sleep Health MD for help with sleeping problems. The team of doctors at the center provide a wide array of sleep medicine services.
Dr. Daniel Katzenberg, Dr. Aaron Morse, Dr. Zachary Adams and Dr. Sarish Nakka are all highly trained in their respective specialties and respected by their peers in the area. All four physicians are board-certified and have a lot of experience treating patients.
Because each doctor at Sleep Health MD has a unique background, the center is able to offer many different services and treatments. Some of the conditions they treat include the following:
Many of the patients who have come to Sleep Health MD have been successfully treated, and many of them recommend the center to others who have trouble sleeping.
Dr. Daniel Katzenberg, MD, PhD
Psychiatrist
1665 Dominican Way
Suite 222
Santa Cruz, CA 95065
At Sleep Health MD, which has offices in Sunnyvale, Los Gatos, Santa Cruz and Watsonville, California, Dr. Aaron Morse has helped many area residents who suffered from sleep disorders. A sleep medicine, pulmonology, and internal medicine specialist, Dr. Morse has been helping patients sleep better for more than 30 years.
After graduating from the David Geffen School of Medicine at UCLA, Dr. Morse completed a residency in internal medicine and a fellowship in pulmonary disease at Cedars-Sinai Medical Center. Today, he is board-certified in internal medicine, pulmonary disease and sleep medicine by the American Board of Internal Medicine.
Thanks to his extensive training and experience, Dr. Morse is able to offer a number of different services. He helps patients with:
Over the course of his career, Dr. Morse has treated many patients. He’s honored that many of the patients he’s seen continue to recommend him to family and friends.
Dr. Aaron Morse, MD
Pulmonologist
1665 Dominican Way
Suite 222
Santa Cruz, CA 95065