About Us





Dr. Sohyun Park

Dr. Sohyun Park is a board-certified periodontist and a diplomate of the American Board of Periodontology. She earned her Doctor of Dental Surgery from the State University of New York at Buffalo and then spent an additional year in Advanced Education in General Dentistry program at Lutheran Medical Center in Albany, NY. She then practiced as a general dentist for 3 years where she elaborated comprehensive dental skills. While she was working as a general dentist, she became fascinated with periodontics, so she decided to become a periodontist. She got accepted into a three-year training program in Periodontology and Dental Implants at the University of Pittsburgh in Pennsylvania and earned a Certification in Periodontics along with a Master of Dental Science degree with a research project on bone graft for implant placements. She currently serves as an Assistant Clinical Professor in the Periodontics Department at the University of the Pacific.

Dr. Park is very excited to provide the service in the San Francisco Bay area with caring, comprehensive, evidence-based dental care. Her scope of dental care includes treating all areas in the field of periodontics, including surgical and non-surgical periodontal therapy around natural teeth, laser therapy, gum grafts, crown elongations, periodontally assisted orthodontics, implant therapy, bone, and gum graft to prepare implant therapy and treatment of disease around existing dental implants.

For advanced laser treatment, she is certified with LANAP (Laser-Assisted New Attachment Procedure), and for the perio-ortho treatment, she is certified with Wilckodontics. Dr. Park strongly believes that dentistry is a lifetime learning process. She attends many continuing education courses throughout the year, adapting newer technologies and honing her skills continuously.

Her professional memberships include the following:

  • The American Academy of Periodontology
  • The American Board of Periodontology
  • The American Dental Association
  • The California Dental Association
  • The San Francisco Dental Society

Dr. Park is clearly very skilled and has an exceptionally gentle touch and a wonderful demeanor with her patients — You are in very good hands with this practice

Ellen, San Francisco CA



Dr. Mark Wiesen

Dr. Mark Wiesen graduated magna cum laude with his doctor of dental surgery from the State University of New York at Buffalo. He then participated in a general dentistry residency at Barnes-Jewish Hospital of St. Louis before returning to the State University of New York at Stony Brook to receive his advanced specialty training in periodontics. Dr. Wiesen has been active with local, state, and national dental societies, serving on many professional boards and in multiple distinguished positions.

In addition to private practice, Dr. Wiesen teaches periodontics and provides direct periodontal care at the Veterans Administration Health Care Centers in Palo Alto. He is a clinical assistant professor at Western University of Health Sciences School of Dental Medicine. Dr. Wiesen has been in private practice for over two decades honing his skills at minimally invasive procedures for the treatment of periodontitis and gingival recession. He enjoys listening to a patient’s concerns and goals and then helping them achieve the health, function, and esthetics desired by every individual.

Dr. Wiesen and his family live in San Francisco where they enjoy all this amazing city has to offer.

Dr. Wiesen’s professional affiliations include:

  • The American Academy of Periodontology
  • The American Dental Association
  • The California Dental Association
  • Mid-Peninsula Dental Society

I've been a Pacific Coast Periodontics patient for 15+ years. From office staff to hygenists to periodontal work from Dr. Wiesen, this practice has never failed to deliver quality care.

Polly, San Francisco, CA



Our dedicated and motivated team has one primary goal – your utmost comfort! We feel it’s important that you understand the treatment that you’ll be receiving so that you can relax during the procedure. Our team is eager to answer any questions regarding your dental care. Please feel free to share with us your needs and concerns.

We pride ourselves on staying on the cutting edge of dentistry and patient communication. We are excited about what we are doing, have high standards of quality and integrity, and are motivated to achieve the best results for our family of patients.











Pacific Coast Periodontics
450 Sutter Street, Suite 2400
San Francisco, CA 94108
Phone: 415-989-0550

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