Dr. Zaghi provides specialty Endodontic care to patients requiring root canal treatment and Oral Microsurgery. She is skilled at all root canal procedures including basic root canal treatment to the most difficult root canal re-treatment cases for adults and children. Additionally, Dr. Zaghi is skilled at the most delicate microsurgery treatments of the root. She completed her Dental and Endodontic studies at UCSF where she researched studies investigating pain management and response of teeth to different stimuli.

Dr. Zaghi has a long list of awards and affiliations.  She is dedicated to providing the highest standard of care for her patients.


Dr. Zaghi has lived in the Bay Area for more than 40 years and practicing dentistry since 2006. She is married and has 2 children. On her free time she enjoys reading root canal journals, snowboarding, swimming, and watching her kids’ sporting events.

Dr. Kieu was born and raised in Orange County. She earned her Bachelor of Science degree in Biology from the University of California, Los Angeles, where she graduated Magna Cum Laude. She then moved to Northern California to complete her dental training at the University of California, San Francisco.  Nominated by faculty, Dr. Kieu was awarded the Craig Memorial Scholarship by the Rho Rho Chapter of Omicron Kappa Upsilon (OKU), National Dental Honor Society, for outstanding scholarship and ethical character. 

After receiving her dental degree, Dr. Kieu worked as a general dentist in San Anselmo before starting her orthodontic residency at the University of the Pacific. Recognizing the importance of providing research-based treatment, she maintains her position as an Instructor of Orthodontics and works closely with the orthodontic Department Chair at UOP. 

Dr. Kieu is a board-certified orthodontist and an active member of the following professional associations: American Association of Orthodontists, California Society of Orthodontists, and Pacific Coast Society of Orthodontists. She also serves on the alumni committee for the Pacific Orthodontic Chapter of the Arthur A. Dugoni School of Dentistry Alumni Association. 

Dedicated to excellence and patient-centered care, Dr. Kieu is a compassionate orthodontist who strives to ensure that patients enjoy high-quality results. She looks forward to working with our dental team to help patients achieve healthy and beautiful smiles. 

Our Doctors

Katherine Kieu, DDS, MS (Board-certified Orthodontist)

Dr. Jane Jiao is board-certified in periodontology and implant dentistry. Dr. Jiao earned her Doctor of Dental Surgery degree from the University of California, Los Angeles. She received both her specialty training in Periodontology and a Master of Medical Science degree at the Harvard School of Dental Medicine. Dr. Jiao received her Bachelor of Arts in Integrative Biology with Honors from the University of California, Berkeley. 

Dr. Jiao is an Adjunct Assistant Professor of Graduate Periodontics at the UMKC School of Dentistry. She was the recipient of the Dentium Postgraduate Research Grant Award, American Academy of Implant Dentistry Foundation Research Grant, and American Academy of Periodontology Dental Student Achievement Award. 

In her free time, Dr. Jiao enjoys cooking, catching up on shows and movies, going to concerts and sports games, and spending time with family and her French bulldog, “King” Louis. 

About Us


Formerly known as Birch Street Dental, our practice has grown with much love and support from our patients these past few years.  Through fortunate events,  we were able to work on a merge to benefit our need for a larger facility. 


Arch Dental Care's mission is to provide personalized, high-quality care on an as-needed or preventative basis. We have created a practice that we believe in and choose for our own family members.


We are a full-service family practice of dedicated, experienced dentists who believe in working with our patients to maintain and improve their health. We work together to serve your entire family for all of your dental needs in all stages of life. Our dentists believe in providing comprehensive dental care services to our patients in a friendly, relaxed atmosphere. We also believe in educating our patients as we work with them to achieve the best physical state possible.


We offers various dental specialists including periodontist, oral surgeon, endodontist, and orthodontist for patients' convenience. This allows us to better manage the treatment plans that incorporate with specialties and also provide everything under one roof for simplicity and convenience sake. 


Our office believes in Go Green. All our forms and documents are digital and filled out online or iPad in effort to minimize paper waste and our x-rays are all digital as well. 


We are conveniently located close to route 101, just a few blocks from route 82 (El Camino Real) near the heart of Redwood City.

Click here for the map to our office.

Chirag Patel, DMD, MD (Oral Surgeon)

154 Arch Street  

Redwood City, CA 94062
P. 650-368-5551/650-365-3933
F. 650-368-9803
info@archdentalcare.com

Top 10 dentists in Redwood City, CA 2015
Rated one of 2015’s top Redwood City Dentistry practices. Congratulations Dr. James H. Kim and Dr. Michelle Y. Kim, DDS!
Verified by Opencare.com

Michelle Y. Kim, DDS

Tanya Zaghi, DDS (Endodontist)

James H. Kim, DDS

Jane Jiao, DDS (Board-certified Periodontist)

Call Us: 650-368-5551

Dr. James Kim was born and raised in a suburb of Boston, Massachusetts.  After completing his studies in biology and psychology at Boston College, he received his dental education and training at New York University College of Dentistry, where he also acquired a certification in Public Health.  After completing his studies, he began his dental career back in his hometown, spending several years in private practice, as well as spending much needed time back at home with family.  Life had different plans for James,  and he soon found himself in San Francisco where he plans to reside long term.


Raised by a family that stressed importance in conservative values and friendly, well-mannered interactions with others, Dr. Kim has translated these teachings to his relationship with his patients.  Dr. Kim had long sought to work in a practice in the Peninsula that would allow him to practice doing what he believes is in the best interest for his patients.  


Being a family oriented person, Dr. James spends much of his free time enjoying life with Michelle and their sons, Evan and Noah.  Outdoor living has been a great benefit for James and Michelle since their move out west.  Their hobbies include walks in parks with their beloved dog, Bailey, enjoying the wide variety of culinary treats San Francisco and the Peninsula have to offer, and the occasional winery excursion when time and weather permits.


Dr. Patel joins the practice having spent 5+ years as a full-time faculty member of the UCSF Department of Oral and Maxillofacial Surgery where he was also the Residency Program Director. During his tenure at UCSF, he was involved in numerous major surgical cases including full-mouth rehabilitation with dental implants, jaw resections for removal of tumors and jaw surgeries for treatment of complicated facial asymmetries. He is excited to bring a high level of expertise to the Fremont community. Prior to his appointment at UCSF, he received his DMD degree from the University of Connecticut School of Dental Medicine and subsequently received his MD degree and completed his residency in Oral and Maxillofacial Surgery at UCSF in 2013. He is a diplomate of the American Board of Oral & Maxillofacial Surgery.

When it comes to patient care, Dr. Patel’s philosophy is simple: Provide state-of-the-art, compassionate care in a safe and ethical environment.

Dr. Patel grew up in India and immigrated to the US with his family in 1999. He speaks Gujarati and Hindi. In his spare time, he is a semi-professional photographer and a wine connoisseur. He lives in San Carlos with his wife and two daughters.


Dr. Michelle Kim spent her youth in Atlanta, Georgia, completed her Bachelor of Science degree in cell molecular biology from the University of Michigan, and received her dental degree from the University of California San Francisco.  Upon graduating, she practiced general dentistry in Massachusetts, but relocated back to the Bay area in 2013 with her husband, James.  

Dr. Michelle is a member of the American Dental Association, the California Dental Association, and the San Mateo Dental Society.  She is dedicated to provide her patients with caring and comprehensive treatments that are based on conservative and preventive dentistry.  She truly loves practicing dentistry and always aspires to learn new techniques and practices to enhance patient care.

When she can find enough time off out of her busy schedule, Michelle enjoys traveling to various parts of the world, immersing herself in and being inspired by these new cultures. She also enjoys painting, yoga, spending time with her sons and the occasional baking.

​​​​​James H. Kim, DDS and Michelle Y. Kim, DDS