Meet the Team
Discover the care behind the exceptional team at Peninsula Center of Cosmetic Dentistry.
Dr. Joseph Field
Dr. Joseph Field is a native of the Bay Area. He loves all it’s beauty and diversity and is delighted that his career path has brought him home to the peninsula. Dr. Field is a respected leader in the field of cosmetic and implant dentistry. He is a caring provider unafraid to tackle extreme smile makeovers, and capable of compassionately guiding anxious patients to a smile that changes their lives. Care is the cornerstone of Dr. Field’s vision and practice. He is dedicated to providing the highest quality care that focuses on the patient experience, meticulously and individually designed for each patient.
Dr. Field’s dental education and experience are both vast and specialized, spanning two dedicated decades. He earned a B.S. in Physiology from Brigham Young University. His first exposure to dentistry came while on a service mission to Colombia where he observed the work of Operation Smile dentists. There he saw lives changed for the better and he came home intent on helping to do the same.
Dr. Field continued his studies at the University of Southern California School of Dentistry. In sunny southern California, Dr. Field acquired a love of USC Football, a hatred for L.A. traffic, and most importantly, trained at a perennially top ranked U.S. dental school known for pioneering new techniques and conducting groundbreaking research. Dr. Field distinguished himself during his studies, winning awards and scholarships, and being elected president of the highest national leadership position in dental education.
Upon graduation from USC, Dr. Field was thrilled to return home to Los Altos and partner at the Peninsula Center of Cosmetic Dentistry. Dr. Field’s education, experience, and focus on patient care ensure client comfort and optimal clinical outcomes with a wide range of cosmetic dental services and procedures, including smile makeover, implant reconstruction, full mouth reconstruction, Invisalign, and Zoom! whitening treatment. Patients agree that Dr. Field’s advanced dental care has transcended beyond services and procedures to an artform where anxieties are eased, and stellar dental outcomes are expected in a caring, professional, and spa-like setting.
Dr. Field’s education formed a foundation of knowledge and skill that he continues to build on. Today, Dr. Field is a Diplomate of the American Board of Oral Implantology/Implant Dentistry and holds the highest level of competence in implant dentistry as a DABOI/ID Diplomate. His expertise has been featured in dental journals, seminars and speaking engagements, and as a guest faculty member at USC where he now teaches new dentists about full mouth rehabilitation and IV sedation courses. Dr. Field is also passionate about giving back to those who deserve it most. Each Veterans Day, the Peninsula Center of Cosmetic Dentistry opens its doors to Bay Area veterans to provide them with more than $20,000 worth of dental care.
Dr. Field counts himself lucky to call Los Altos home, and even luckier to care for people in a community he loves. Outside his work hours, Dr. Field spends time with his beautiful wife, Meg, and their four busy kids. He enjoys playing basketball, attending sporting events, and breathing the pure mountain air on the slopes, water, and golf courses of Lake Tahoe.
Dr. Ratna Indah
Dr. Ratna Indah, graduated from Tufts University School of Dental Medicine with honors; she was an intern at The Gelb TMJ Center and a tutor during her dental school years. She has attained Fellowship Status with the Academy of General Dentistry; to earn Fellowship in the AGD, dentists must take more than 500 hours of education courses in various disciplines. Candidates must also pass a rigorous exam before the award is then presented in a formal ceremony. Ratna Indah, Safe Mercury Amalgam Removal Technique, FAGD is one of only 6 percent of general dentists who have achieved this honor. To learn more about this award or the AGD, visit www.agd.org.
Dr. Katerina Kostagianni
She is a highly experienced Prosthodontist with focus on Implant Dentistry and Cosmetic Rehabilitation. Her passion lies in creating beautiful smiles by analyzing every individual’s unique characteristics’ and providing personalized recommendation based on their specific needs and desires.
Being in the heart of Silicone Valley, not only has she embraced the advancements in digital dental technologies but she has been a pioneer on that field by working closely with renown master ceramists. From facially generated Digital Smile Design and full mouth rehabilitation to digitally guided implant placement and “teeth in a day concept”, her commitment is to pursue excellence through innovation by prioritizing her patients’ well-being.
Dr. Kostagianni earned her Certificate and Master’s in Prosthodontics at the University of Alabama at Birmingham and her Doctor of Dental Medicine Degree (DMD) at Tufts School of Dental Medicine. In addition, she completed a 1-Year Implant Prosthodontics Fellowship at the University of Maryland, where she further enhanced her skills and knowledge in complex Restorative and Surgical Implant procedures. Currently she is a member of the American College of Prosthodontist, International Team of Implantology and American Academy of Facial Esthetics.
Prior to moving to Northern California, she had served for several years as an Assistant Professor in Esthetics Dentistry and Post-Graduate Prosthodontics Program at Tufts School of Dental Medicine. Currently, she is in private practice providing various treatment options:
- Digital Smile Design and Facially generated
- Smile Makeovers
- Full-mouth reconstructions due to missing or broken-down teeth
- Full-Mouth Implant reconstructions such as “teeth in a day” or “All-on-X” concepts
- Minimally invasive biomimetic restorations with veneers and onlays
- TMJ evaluation related to clenching or grinding, including Botox injections.
Dr. Scott Oh
Dr. Scott Oh is a compassionate provider whose practice philosophy merges art with medicine to craft healthy, radiant smiles that inspire confidence and promote oral health for his patients. Through thoughtful comprehensive treatment planning and utilization of the finest materials, Dr. Oh and his team of Master Ceramists work hand in hand to create beautiful, healthy smiles tailor made for each patient to achieve natural aesthetic facial harmony.
With his welcoming smile and friendly demeanor, Dr. Oh takes great care to foster genuine human connections with his patients and strives to establish an environment that puts their anxieties at ease. He understands each patient is unique and places the utmost importance in providing a personalized dentistry experience. In addition to taking great pride in his clinical abilities, Dr. Oh finds joy and fulfillment in the friendships he forms with his patients along the way.
Dr. Oh was born and raised in Orange County, CA where he developed his love for sunshine and warm weather. He chose to stay in Southern California as he pursued his B.S. in Human Biology from the University of California, Los Angeles. While at UCLA, he served as a research associate in the Oral Maxillofacial Surgery Department at the UCLA School of Dentistry. He also participated in Operation Smile, a volunteer nonprofit organization that raises funds to provide underserved communities with procedures to address congenital cleft lip and palate defects.
Dr. Oh continued his education by earning his Doctor of Dental Surgery at the University of the Pacific School of Dentistry in San Francisco. Dr. Oh then continued his career in the United States Army, where he received advanced clinical training in multiple specialties including prosthodontics, periodontics, and endodontics. With this advanced training, along with his knowledge of digital dental technology and Invisalign® orthodontics, Dr. Oh focuses his practice in aesthetic dentistry, smile rejuvenation and Cerec® CADCAM Restorative Dentistry.
In his free time, Dr. Oh enjoys skiing, mountain biking, surfing and camping. He aspires to travel the world to experience different cultures and taste all the foods they have to offer.
Dr. Duc Pham
A bay area native, Dr. Duc Pham grew up in San Jose, CA. Dr. Pham chose to stay local and attended San Jose State University where he earned his B.S. in Biochemistry with a minor in Biology. Furthering his education, he obtained his Doctor of Dental Surgery at the prestigious University of the Pacific in San Francisco, CA. Dr. Pham then continued his dental career in the United States Navy, where he received advanced clinical training including: digital Cerec® CADCAM dentistry, periodontics, oral surgery and endodontics. Being a big proponent on family & friends and his love for California, he decided to finish his service in the Navy and return to the city where he grew up.
Dr. Pham is a meticulous and compassionate provider who developed a passion to merge the artistry and science of dentistry in his practice philosophy. He believes in keeping up to date with the latest Dental technology through continuing education courses to provide his patients with the best dentistry possible. Through thoughtful comprehensive treatment planning and utilization of the finest materials, Dr. Pham hopes to create beautiful, healthy smiles tailor made for each patient. He is known for his comforting chairside manner and commitment to treat all his patients as if they were his own Phamily!
In his free time, Dr. Pham is a big enthusiast for health, fitness, and sports. He is a huge LA Rams fan and a big time Warriors fan. Dr. Pham also enjoys traveling, photography and tasting all the unique foods the bay area has to offer.
Dr. Marlana Shile
Dr. Marlana Shile is an outstanding and caring clinician who specializes in aesthetic dentistry, oral sedation, CAD/CAM Cerec® restorative dentistry, and Invisalign® orthodontics for our patients.
Born and raised in the Bay Area, she graduated from Stanford University majoring in Human Biology. Her degree in dentistry from the prestigious University of the Pacific School of Dentistry in San Francisco was earned with Honors. Dr. Shile did her post-doctoral General Practice Residency at the VA Palo Alto and Stanford Hospitals where she gained advanced dental training in prosthodontics and surgery. Dr. Shile is an active member of the California Dental Association and is the current President-Elect of the Mid-Peninsula Dental Society.
Dr. Marlana Shile is a member of the following associations:
- American Academy of Cosmetic Dentistry
- American Academy of Facial Aesthetics
- American and California Dental Association
- Mid-Peninsula Dental Society
- Academy of General Dentistry
Dr. Karl Supal
Dr. Karl Supal practices all aspects of General Dentistry with a caring and patient centered approach. Dr. Karl truly cares about his patients and their best interest will always come first.
Dr. Supal grew up in Detroit, Michigan and is a graduate of the internationally, distinguished University of Michigan School of Dentistry. Dr. Karl is a perfectionist who focuses on providing predictable results for his patients by practicing evidence-based dentistry.
He is experienced in multi-phase treatment planning for full mouth reconstruction and is familiar with the latest dental technology to offer same-day treatment options with CAD/CAM dentistry.
Dr. Karl is known for his comforting chairside manner and commitment to excellent dentistry, having hundreds of hours of experience working with anxious and phobic patients.
Dr. Karl takes pride in explaining treatment options in a way that his patients can understand, so they know exactly what to expect from their treatment. He prefers to streamline treatment for his patients, making it as efficient as possible to fit their schedule. He likes to spend his free time working out, playing basketball, hiking, skiing, and watching sunsets.
Dr. Theresa Ta
Although born in Des Moines, Iowa, Dr. Theresa Ta spent most of her upbringing in San Jose, California. As a true local, she attended San Jose State University, where she graduated at the top of her class with a Bachelor of Science in Molecular Biology. Dr. Ta continued her educational journey at the prestigious UCLA School of Dentistry, where she obtained her Doctor of Dental Surgery (DDS) degree.
After completing her dental degree, Dr. Ta pursued advanced training in cosmetic dentistry through various courses and seminars. She is an active member of the American Academy of Cosmetic Dentistry (AACD) and is dedicated to staying current with the latest advancements in dental aesthetics.
Dr. John Van
Dr. John Van is a respected leader in the field of cosmetic and implant dentistry, with almost two decades of experience demonstrating his commitment to excellence. Known for his advanced skills in IV sedation, aesthetic treatments, and implant procedures, Dr. Van ensures each patient receives exceptional care tailored to their needs in a comfortable and relaxed environment. His expertise includes smile makeovers, implant reconstruction, full mouth reconstruction, Invisalign, and Zoom! whitening.
A Bay Area native, Dr. Van has deep roots in the local community. He earned a full academic scholarship to UCLA, where he completed his B.S. in Psychobiology, and furthered his dental education at the University of the Pacific, Arthur A. Dugoni School of Dentistry in San Francisco.
Dr. Van’s dedication to transforming lives extends beyond his clinical practice. Since 2008, he has volunteered with Operation Smile, an organization providing crucial dental and cleft lip/palate surgeries to children globally. His two years of dedicated service in Vietnam, India, Ethiopia, Kenya, and Honduras have profoundly impacted his approach to patient care. Additionally, his role with the American Red Cross as an EMT during Hurricane Katrina highlights his commitment to service in times of crisis.
At the Peninsula Center of Cosmetic Dentistry, Dr. Van is celebrated for his personalized care and patient-focused approach. He listens attentively to each patient’s needs, crafts individualized treatment plans, and employs advanced technology to achieve outstanding results. His approach fosters a supportive and caring environment, ensuring a compassionate and exceptional patient experience.
Dr. Van resides in Los Altos with his wonderful wife and their energetic son. Family is central to who he is, and his connection to this community is deeply important to him.