Raquel Nieves, MD
Pediatrician
555 Peters Ave Ste 110
Pleasanton, CA 94566
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10 providers
Availability last updated 04/03/2026
Raquel Nieves, MD
Pediatrician
555 Peters Ave Ste 110
Pleasanton, CA 94566
Dr. Muthukumar Vellaichamy, MD
Pediatrician
1401 21st Street
Sacramento, CA 95811
Dr. Nikhil Patankar, MD
Pediatrician
1401 21st Street
Sacramento, CA 95811
Dr. Rahamat Mansaray is a board-certified pediatrician and sleep medicine specialist dedicated to helping patients achieve restful, restorative sleep. Growing up in the south suburbs of Chicago, she pursued her undergraduate education at the University of Illinois before completing her Pediatric Residency in West Michigan. She then advanced her expertise with a Sleep Medicine Fellowship at Case Western Reserve University in Cleveland, Ohio.
With a deep passion for patient-centered care, Dr. Mansaray believes in treating the whole person, not just the condition. She values collaboration, ensuring that patients are active partners in their wellness journey. Her expertise spans both pediatric and adult sleep medicine, allowing her to provide comprehensive care for individuals of all ages.
Beyond medicine, Dr. Mansaray embraces the joy and wonder of childhood. She cherishes time spent with friends and family, indulging in great food, and appreciating all the beautiful moments life has to offer.
Rahamat Mansaray, MD
Pediatrician
2222 Camino Ramon
San Ramon, CA 94583
Born and raised in Sacramento, California, Dr. Valdez never wanted to be far from home. Since receiving degrees and medical training from the University of California at Davis , University of California at Irvine , and Loma Linda University, California , he has enjoyed the privilege of administering general pediatric care in a private-practice setting in the greater Sacramento area since 1991. “Caring for and treating infants and children, as well as being part of their overall development and maturation into adults, is one of the most rewarding experiences for anyone. The actual ‘medicine’ of pediatrics is ongoing and foundational to the practice. The difficult aspect–relaying information and advice to families, making oneself available for support and questions, and discussing treatment options—is where I believe I make a difference”, says Dr. Valdez. He is a member of several local and national Pediatric and Medical Societies and serves in both elected and appointed positions on the Pediatric and/or Medical Executive Committees at Sutter Roseville Medical Center , Roseville, California and Mercy San Juan Medical Center , Carmichael, California. ‘Dr. V’ is commonly seen driving around town in his distinct ‘slug bug’.
Benjamin Valdez, MD
Pediatrician
508 Gibson Drive
Suite 220
Roseville, CA 95678
Sara is Family Nurse Practitioner, board certified through the American Academy of Nurse Practitioners. She received a Bachelor of Science degree in Clinical Nutrition from UC Davis and a Master of Science degree in Nursing from Samuel Merritt University. Sara have been working in primary care pediatrics since 2015. She provides personalized care from the early days of infancy through adolescence and enjoys connecting with families and working with her team of colleagues to provide them compassionate, quality care. Sara’s favorite part of her job is helping families navigate through all the stages of childhood. From her own experience of raising two young children, she personally knows each stage of development has its own challenges for the patient and the caregiver/parent. Sara strives to provide thorough education and tools to empower each family to thrive in their own journey.
Sara Dean, NP-C
Nurse Practitioner
508 Gibson Drive
Suite 220
Roseville, CA 95678
Alexandria is a Pediatric Nurse Practitioner, board certified by the Pediatric Nursing Certification Board. Her scope of practice includes the physical diagnosis, psycho-social assessment, and management of health-illness needs in primary health care for children. Alexandria earned her Master of Science in Nursing from the Pediatric Nurse Practitioner program at the University of San Diego, Hahn School of Nursing and Health Science. In addition to her nursing degree, Alexandria holds a Bachelor of Science in Molecular and Cellular Biology from the University of California, Berkeley.
Alexandria Johnson
Nurse Practitioner
508 Gibson Drive
Suite 220
Roseville, CA 95678
Danielle is a Pediatric Nurse Practitioner, certified by the Pediatric Nursing Certification Board. She earned her Master of Science in Nursing-Pediatric Nurse Practitioner Primary Care degree from the University of Texas Health Science Center at San Antonio and her Bachelor of Science in Nursing degree from Case Western Reserve University in Cleveland, OH. She is an active member of the National Association of Pediatric Nurse Practitioners (NAPNAP). Prior to becoming a nurse practitioner, Danielle worked as a Registered Nurse in the Neonatal Intensive Care Unit (NICU) for six years. She was born and raised in Palo Alto, CA. She currently resides in Sacramento with her fiancé and furry companion Tobi. She enjoys hiking, traveling and baking in her free time.
Danielle Blonstein, Nurse Practitioner
Nurse Practitioner
508 Gibson Drive
Suite 220
Roseville, CA 95678