Dr. Katherine Pennington Klein, D.M.D., M.S.
OrthodonticsNPI: 1750362414
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Dr. Katherine Klein is a board-certified orthodontist with 21 years of experience helping patients of all ages achieve beautiful, healthy smiles. Based in Boston, she is an Assistant Professor at Harvard School of Dental Medicine and Director of Orthodontics at Massachusetts General Hospital, where she specializes in traditional braces, Invisalign clear aligners, and complex cases including surgical orthodontics and craniofacial anomalies. Recognized as a "Best of Boston" orthodontist year after year, Dr. Klein combines her expertise with a warm, compassionate approach—she truly believes every patient deserves a confident smile and finds the most rewarding part of her work in building lasting relationships with her patients. Using state-of-the-art technology and techniques, she welcomes new patients of all ages and is committed to uncovering the beautiful smile within each person who walks through her door.
Specialties
- Oral and Maxillofacial Surgery
Surgical treatment of diseases, injuries, and defects of the mouth, jaw, and face
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Education & Training
- Harvard School of Dental Medicine - Assistant Professor
- D.M.D. (Doctor of Medical Dentistry)
- M.S. (Master of Science)
Board Certifications
- Board-Certified Specialist in Orthodontics and Dentofacial Orthopedics
Credential: D.M.D., M.S.
NPI registered: 11/09/2005
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Areas of Focus
Technology & Equipment
- State-of-the-art technology
- High-tech environment
Awards & Recognition
- Honored as 'Best of Boston' Orthodontist for as long as the award has existed
Beyond the Office
Director of Orthodontics at Massachusetts General Hospital (MGH) for more than a decade
Assistant Professor at Harvard School of Dental Medicine
Lectures nationally to peers about expertise in craniofacial anomalies and surgical orthodontics
Describes orthodontics as her 'true calling in life'
Inspired by revealing new smiles to the world
Described by patients as kind, personable, down-to-earth, friendly, warm, welcoming, compassionate, and engaging
All-female staff in practice
Provider information is sourced from the National Plan and Provider Enumeration System (NPPES) maintained by CMS. Information may not reflect the most current data. Providers can claim their profile to update and verify their details.