Boston Magazine's 2026 directory lists 796 dentists and specialists across Greater Boston. Eleven of them work at Dental Partners of Boston.
Endodontics focuses on diagnosing and treating diseases and injuries affecting the inner tissues of a tooth, according to Castle Connolly's specialty overview.
The 2026 honorees
The listed dentists are Dr. Sergio A. Guzman, D.M.D., M.S.D. in Periodontics and Dental Implants; Dr. Michael G. O'Toole, D.M.D., M.M.Sc.; Dr. Shiro Kamachi, D.M.D.; Dr. Kumiko Kamachi, D.M.D., C.A.G.S.; Dr. Carly F. Park, D.M.D.; Dr. Jessica Lau, D.M.D.; Dr. Sarah S. Kim, D.M.D., M.S.; and Dr. Yuko Otsubo, D.M.D., B.D.S., M.S.D. in Prosthodontics; Dr. Yael Frydman, D.M.D. in Orthodontics; Dr. Iman S. Labib, D.M.D., M.S.D. in Endodontics; and Dr. Carolina Mujica, D.M.D., C.A.G.S. in Restorative Dentistry.
Dr. Guzman has appeared in every edition of Boston Magazine's Top Dentists list since it launched in 2017. He is a Diplomate of the American Board of Periodontology and the Managing Member of Dental Partners of Boston.
Available independent search results did not verify the specific 2026 Boston Magazine directory listing or the participation of the 11 Dental Partners of Boston clinicians. The Castle Connolly material located in the search review explains the scope of endodontics but does not establish the magazine ranking or provide confirmation about the practice.
How the directory is compiled
TopDentists, now part of Castle Connolly, compiles the directory through a survey of licensed dentists across the region. Those dentists nominate peers they consider outstanding. Nominees are then reviewed before the final list is produced.
The process gives the announcement a clear professional context. It is not a clinical outcome study or a comparison of treatment results. It is a directory recognition based on nominations and review within the Greater Boston dental community.
The practice's focus on coordinated care also connects the announcement to a wider question: how should complex dental treatment be organised? An earlier implant report describes a step-by-step digital workflow. Implant care can involve several linked stages. Dental Partners of Boston says its clinicians coordinate those stages across specialties when required.
Coordination across specialties
A dental implant case may require periodontal evaluation, implant placement, and a final restoration. Other treatment plans may bring together restorative dentistry, orthodontics, endodontics, prosthodontics, and additional specialties. Dental Partners of Boston says keeping those providers within one practice lets treatment planning address a patient's overall clinical needs instead of treating each procedure as an isolated step.
The practice operates three downtown Boston locations: Charles River, Prudential Center, and Fort Point in the Seaport. It provides general, preventive, cosmetic, restorative, implant, periodontal, orthodontic, endodontic, and specialty dental care. The practice is accepting new patients.
The directory is due to appear in Boston Magazine's October 2026 issue. The number of names is only part of the story. The list includes peer-recognised clinicians across specialties that often meet in complex dental care. For the practice, coordination across those fields is its clearest professional strength and its main message to patients.
