
Urology (Mountain View)
At El Camino Health, our Urology experts offer the most comprehensive array of urologic treatments available in the South Bay. Come to us for:
• Minimally invasive stone treatments. To remove bladder, kidney and ureteral stones, our urology professionals use innovative procedures that break stones into tiny fragments.
• Expertise in male and female incontinence. A wide variety of nonsurgical and minimally invasive methods allow us to treat the loss of bladder control and return patients to active, normal lives.
• Outpatient surgical options for prostate conditions. Options to remove enlarged prostate tissue that irritates or obstructs a man's bladder include advanced laser and transurethral technologies.
• A holistic approach to male health. In men, a condition like erectile dysfunction is often a symptom of something else, like heart disease, which is why we devote ourselves to the evaluation of men's overall health.
Parking
A four-level parking structure is located at the end of North Drive.
Free valet is available from 8:00 a.m. - 5:00 p.m. at the front entrance of the main hospital (from North Drive)
Shuttles provide free rides weekdays between hospital entrances and the parking garage from 8:00 a.m. - 4:00 p.m. (subject to volunteer scheduling).
Meet our staff

Kolette Brown, MD
Primary Care
About
Kolette Brown, MD, is a primary care doctor who specializes in internal medicine. She provides preventive care as well as diagnosis and treatment of acute and chronic health conditions.
With a patient-first focus, Dr. Brown listens closely to her patients' concerns and works to address them through personalized care. She educates people about their health and supports them in their wellness journey.
Outside of work, she enjoys yoga, meditation and walking outdoors.


Sandra Lee, MD, PHD
General Pediatrics and Adolescent Medicine
About
Sandra Lee, MD, is a board-certified general pediatrician who provides a full spectrum of pediatric care. She has special interests in newborn care and adolescent medicine.

Chelsea Caldejon-Chang, PA-C
Family Medicine
About
Chelsea Caldejon, MS, PA-C, is a board-certified physician assistant specializing in primary care. She cares for patients over time to support their long-term outcomes.
In the clinic, Chelsea builds trust by helping patients understand their health in a practical, approachable way. "I focus on meeting people where they are - keeping things clear, realistic and judgment-free," she says. She finds it especially rewarding to see small lifestyle changes add up to meaningful health improvements.
Growing up in the Bay Area, Chelsea saw El Camino Health's impact firsthand. She joined the organization for its patient-centered approach and values the relationships she builds with the people she cares for. Working within a collaborative team supports her continued professional growth.
Chelsea has held leadership roles in student- and community-based clinics, focusing on outreach and access to care. These experiences have strengthened her commitment to serving diverse patient populations.
Outside of work, Chelsea enjoys spending time with her family, reading and weightlifting. She has participated in anime and gaming outreach for mental health, which shapes how she connects with people from different backgrounds.

Tahira Malik, MD
General Pediatrics and Adolescent Medicine
About
Tahira Malik, MD, is a board-certified pediatrician who has also earned board eligibility in pediatric nephrology (kidney care). She provides the full spectrum of primary care, with an emphasis on preventive medicine.

Lydia Leung, DO
Family Medicine
About
Lydia Leung, DO, is a primary care doctor. She provides comprehensive, patient-centered care that focuses on preventive health, chronic disease management and coordination of multidisciplinary care.
In her practice, Dr. Leung blends evidence-based treatment, patient education and collaborative decision-making to support ongoing health and wellness. She listens carefully to her patients and partners with them to create individualized care plans that can realistically be implemented in their lives.
She explains, "By emphasizing education and open communication, I help patients feel heard, confident and empowered to take an active role in their long-term health."
Dr. Leung values the opportunity to make a meaningful difference in people's lives. She enjoys building long-term relationships with patients, helping them understand their health and partnering with them to achieve their goals. She shares, "Seeing patients improve and knowing I played a role in their journey is what makes this work so rewarding."
Dr. Leung was drawn to El Camino Health because of its commitment to clinical excellence and patient-centered care. She appreciates the collaborative culture and shared dedication to providing compassionate, high-quality care to the community.
Outside of work, Dr. Leung enjoys being with family and friends, exploring new restaurants and traveling.

Aparna Mukkamala, MD
Internal Medicine
About
Aparna Mukkamala, MD, is a primary care doctor. She diagnosis and treats a wide variety of acute (sudden) medical issues and helps patients manage chronic (long-term) conditions.
Dr. Mukkamala listens carefully, explains things clearly and encourages patients to participate in their care. She explains, "I've found that when patients feel heard and supported, it really makes a difference in their overall experience and outcomes."
She has been in practice since 2007 and remains passionate about her work. She appreciates the opportunity to support people, especially during vulnerable times. She says, "I like connecting with people, hearing their stories and working together to help them feel better and stay healthy."
Dr. Mukkamala was drawn to El Camino Health because of its strong reputation for excellent patient care and its supportive, team-oriented culture. She recalls, "During my interview process, it really stood out to me how everyone I met was so welcoming and genuinely passionate about what they do."
In addition to English, she is fluent in Telugu and Hindi.
Outside of work, Dr. Mukkamala likes traveling and spending time with family and friends. She also enjoys peaceful walks in parks and gardens to recharge and stay balanced.

Sudha Parvataneni, MD
Internal Medicine
About
Sudha Parvataneni, MD, is a primary care doctor. She diagnoses and treats a broad range of acute and chronic medical conditions, including hypertension, diabetes and hyperlipidemia. She places a strong focus on preventive medicine.
Passionate about building strong and lasting relationships with her patients, Dr. Parvataneni explains, "I'm dedicated to earning my patients' trust. I listen to their concerns and help them understand their health conditions and treatment options, so they are empowered to make informed medical decisions."
Dr. Parvataneni appreciates the collaborative nature of the highly skilled El Camino Health team and their commitment to clinical excellence. She shares, "El Camino Health gives me the opportunity to deliver medical care that I believe in, the flexibility to listen to my patients' concerns and the chance to build lasting relationships with a diverse patient population."
Dr. Parvataneni speaks English, Telugu and Hindi fluently.
Outside of work, Dr. Parvataneni enjoys spending time with her family, cooking, hiking and practicing yoga.

Stephen Huynh, DO
Family Medicine
About
Stephen Huynh, DO, is a family medicine physician. He works with patients of all ages, providing care from pediatrics through geriatrics.
Dr. Huynh helps patients work toward optimum health by empowering them with the knowledge they need to make good health decisions. He takes the time to explain their health conditions as well as options for diagnosing and treating them.
Outside of work, Dr. Huynh enjoys spending time with family, hiking, watching Warriors' basketball and traveling.

Aida Dizdarevic, FNP
Family Medicine
About
Aida Dizdarevic, FNP certified by AANP in Nurse Practitioner.

Rajalakshmi Kalimuthu, MD
Family Medicine
About
Rajalakshmi Kalimuthu, MD, is a family medicine doctor who specializes in outpatient primary care. She has a special interest in preventive health, chronic disease management and women's health.
Dr. Kalimuthu values strong patient relationships. She listens compassionately to her patients' concerns and works to earn their trust. Her goal is for everyone to feel heard, supported and informed.
She explains, "I'm committed to empowering patients to actively engage in their health. I want to support them in achieving optimal well-being."
Dr. Kalimuthu appreciates El Camino Health's commitment to ensuring every patient receives personalized, safe and compassionate care. She feels it aligns with her own mission to provide high-quality, personalized care while supporting each patient's long-term well-being.
Dr. Kalimuthu is fluent in English and Tamil. She is conversational in medical Spanish and has basic proficiency in Hindi.
Outside of work, Dr. Kalimuthu enjoys hiking, gardening, marathon training and traveling with family and friends.

Bindu Edwin, FNP
Family Medicine
About
Bindu Edwin, FNP, practices in San Jose for El Camino Health Medical Network at 2577 Samaritan Dr Ste 820.

Munir Javed, MD
Internal Medicine
About
Dr. Munir Javed specializes in internal medicine and is a primary care physician. He's skilled at diagnosing and treating a wide range of conditions in adult patients.
Dr. Javed is passionate about providing exceptional care to his patients. He takes a friendly approach to delivering healthcare and believes in involving his patients in decisions about prevention, diagnosis and treatment.
Dr. Javed enjoys working at El Camino Health because of the excellent support staff.

Lisa Kurt, PA-C
Internal Medicine
About
Lisa Kurt, PA-C, is a physician assistant who specializes in internal medicine. She cares for patients across the lifespan, with a focus on preventive health. Her goal is to help people stay well at every age.
In the clinic, Lisa values relationship-building and clear communication. She takes time to get to know her patients and understand their needs and goals. Then, she offers education and guidance to help them make informed, confident decisions about their health. "It's a privilege to work alongside patients and be trusted with their care," she says.
Lisa admires El Camino Health's commitment to patient-centered, compassionate care. She's eager to contribute to a growing organization that works to improve the well-being of its community.
Outside of work, Lisa enjoys hiking, traveling and spending time with friends and family. You'll also find her at live music events or local cafés.

Sayaka Taguchi, PA-C
Primary Care
About
Sayaka Taguchi is a family medicine physician assistant who cares for patients of all ages. She is passionate about helping people achieve a healthy lifestyle to enhance their quality of life and to decrease their risk of developing preventable health conditions.
Taking a holistic approach to care, Sayaka partners with her patients to support both their physical and mental health. She works hard to create a safe space where patients feel comfortable discussing anything that affects their well-being.
Born in Japan and raised in Sunnyvale, CA, Sayaka is fluent in both Japanese and English. She is excited for the opportunity to practice medicine in her hometown, where she can provide care to the same community that helped raise her.
Outside of work, Sayaka enjoys reading, hiking and spending time with her husband.

Vaishali Geedigunta, MD
Internal Medicine
About
Vaishali Geedigunta, MD, is an internal medicine doctor. She provides holistic, patient-centered care that is tailored to each patient's unique needs, values and preferences. Dr. Geedigunta aims to empower patients with the knowledge and resources they need to make informed health decisions and engage in self-care that enhances their quality of life.
Dr. Geedigunta explains, "Healthcare requires compassion, understanding and empathy - values that resonate deeply with me. It is incredibly fulfilling to be a part of the healing process and build strong, trusting, long-term relationships with my patients and their families."
Inspired by her mother's dedication to healthcare, Dr. Geedigunta has a passion for providing exceptional patient care. After being a patient at El Camino Health herself, she knew that she wanted to be a part of its outstanding team.
Committed to furthering medical knowledge and advancements, Dr. Geedigunta has 13 research publications across several highly respected medical journals
Outside of work, Dr. Geedigunta enjoys meditation, yoga, singing and painting.

Steven Ngo, MD
Urology and Urologic Surgery
About
Steven D. Ngo, MD, specializes in urology and urologic surgery. He treats conditions that affect the male and female urinary tract system as well as the male reproductive system. Some of these conditions include kidney stones, urinary tract infections, bladder control issues, erectile dysfunction, prostate conditions and urologic cancers.
Dr. Ngo understands that urologic issues can deeply impact private aspects of a person's life. He strives to build strong relationships by creating a space where patients feel safe, understood and empowered. He collaborates with patients to create personalized treatment plans that cure or manage conditions, preserve function and improve quality of life.
He explains, "As both a physician and an educator, I see myself as a bridge between complex medicine and each patient's personal goals, values and life circumstances."
Dr. Ngo appreciates that El Camino Health's culture is rooted in mutual respect, collaboration and a shared commitment to putting patients first. He says, "This supportive environment fosters innovation, professional growth and a strong sense of purpose."
Dr. Ngo speaks English and Vietnamese fluently.
Outside of work, Dr. Ngo recharges by connecting with friends and family and spending time outdoors. He enjoys hiking, cycling, cooking and practicing martial arts.

Hsing Pao, MD
Family Medicine
About
Hsing Pao, MD, is a family medicine physician who works with children and adults. He diagnoses and treats acute and chronic health conditions and provides preventive care.
Using a shared decision-making approach, Dr. Pao works to educate people about their conditions and treatment options so they can make informed healthcare decisions.
Dr. Pao treats every patient the way he would want his own family to be treated. He explains, "I value the opportunity to foster intimate relationships with my patients and to take part in their journeys."
Outside of work, Dr. Pao stays busy raising his two kids and teaching in the children's ministry program at his church. He also enjoys cooking, swimming and cycling.

James (Joe) Gholson, MD
Orthopedics and Orthopedic Surgery
About
James Gholson, MD, is a board-certified, fellowship-trained orthopedic surgeon specializing in personalized and minimally invasive partial knee replacement, anterior approach hip replacement and total knee replacement. He tailors each patient's surgical plan and treatment regimen to speed recovery and support a faster return to work and daily life.
In the clinic, Dr. Gholson partners with his patients to understand how arthritis affects their daily lives. He helps them map out a path back to the activities they enjoy - whether that's pain-free playtime with their grandchildren or getting back to a favorite sport. "It's important to define treatment goals early in our relationship so we're always focused on what matters most to the patient," he says.
Dr. Gholson came to El Camino Health to join a joint replacement center focused on patient-centered care. He has completed thousands of joint replacement surgeries in the South Bay community. He uses the latest orthopedic technology - including robotics and artificial intelligence - to improve hip and knee replacement outcomes and enhance his patient-centered approach to care.
Dr. Gholson graduated magna cum laude from Harvard Medical School. He has contributed to numerous orthopedic publications, national presentations and textbooks and is a reviewer for The Journal of Arthroplasty. He is a fellow of the American Academy of Orthopaedic Surgeons and a member of the American Association of Hip and Knee Surgeons.
Outside of work, Dr. Gholson enjoys running, snowboarding, hiking and spending time with his wife and three children.

Robin Cheng, MD
Urology and Urologic Surgery
About
Robin Cheng, MD, is a urologic surgeon who diagnoses and treats conditions affecting the urinary tract and male reproductive system. He performs surgeries and procedures to deliver immediate, meaningful health improvements. He also provides comprehensive nonsurgical urologic care. One of the most rewarding parts of his work is witnessing the satisfaction and relief patients feel after treatment.
Dr. Cheng believes in a personal, compassionate approach. He takes time to communicate clearly with patients and their families. "These open conversations ensure everyone understands the condition and feels empowered during the treatment process," he explains. "Together, we make shared decisions and create a care plan that reflects each patient's goals and values."
El Camino Health has been a part of Dr. Cheng's medical journey from the start. As an auxiliary volunteer in high school, he admired the organization's innovative spirit and deep commitment to serving the Bay Area. He returned as a physician to continue that mission by staying at the forefront of urology and delivering high-quality, community-based care.
During his training, Dr. Cheng conducted research on cancer biology, immunotherapy and the use of ultra-low-dose CT scans to detect kidney stones. More recently, he has evaluated the accuracy of artificial intelligence (AI) chatbots in answering patients' urological questions. He has also published a case report on urological trauma.
Dr. Cheng is a member of the American Urological Association (AUA) and the Society of Chinese American Physician Entrepreneurs (SCAPE). He is fluent in Mandarin Chinese.
Outside of work, Dr. Cheng enjoys spending time with his family and dog, swimming, reading historical nonfiction and hiking scenic trails around the Bay Area.