Meet Our Team

When you visit the team at Sierra Oaks Dental, a group of diverse, hardworking dental professionals will take care of your every need. From the front office to the operatories, our team works together to exceed your expectations, especially when it comes to enhancing your appearance with cosmetic dentistry or improving the performance of your smile with dental implants or Invisalign® clear aligners. Our dentists and team have the right mix of care and experience to help you enjoy a lifetime of great smiles, and we are happy to serve English, Spanish, Russian and Korean speakers. You can learn more about our team below, or you can call (916) 481-2000 to schedule your dental appointment in Sacramento, California.

Dr. Peter Kim of Sierra Oaks Dental Sacramento

Peter Kim, DDS

Dr. Peter Kim has been serving the Sacramento community for eight years. Dr. Kim is best known for prioritizing his patient’s needs and delivering excellent treatment, even on weekends, holidays and after hours in emergency cases. Regardless of the emergency, patients leave knowing they are in the best hands in all of Sacramento. Patients admire Dr. Kim’s honest, intelligent and precise dentistry. In return, Dr. Kim enjoys forming bonds with the patients we care for.

Having grown up in the heart of the Bay Area, Dr. Kim graduated from University of California, Berkeley, followed by San Francisco’s University of the Pacific as a Doctor in Dental Science. He is a strong supporter of the University of the Pacific’s Dental Program and is an active Alumni. Furthermore, Dr. Kim works hard to maintain a high standard for dentistry in our community as a participating member of the American Dental Association and California Dental Association.

Since 2012, He also serves on the faculty club at the prestigious SPEAR education center in Scottsdale, Arizona. Less than 1% of dentists in the entire country have this privilege and it signifies his dedication to the best possible experience for that of his practice and patients. He has earned his implant certification from the world renowned AIC education center and completed this training at the UOP Dental AEGD clinic. He stays up to date with the latest in the dental field by staying associated with ITI International Team for Implantology in Switzerland, AIC implant education in San Francisco, the Academy of General Dentistry, and various study clubs throughout Northern California.


Dr. William Altig, dentist at Sierra Oaks Dental

William Altig, DDS

Dr. Altig attended and graduated from the University of California at Riverside with a bachelor’s degree in psychobiology in 1993. He graduated from USC School Of Dentistry in 1997 and was a member of Psi-Omega dental fraternity. He practiced dentistry in Southern California for a few years until moving from Huntington Beach, California, to the Sacramento area in the summer of 2000.


Dr. Eric Gregg, dentist at Sierra Oaks Dental

Eric Gregg, DMD

Dr. Eric Gregg graduated from Oregon Health and Sciences University in 2011 and completed a general practice residency at the Portland VA Medical Center in 2012. He joined Sierra Oaks Dental in October 2020 and likes that the team here consists of high-caliber people all doing their best to give patients the highest level of clinical care, customer service and efficiency as we can. Dr. Gregg sincerely cares about meeting patients’ needs and achieving the most ideal results possible. This includes listening to each patient’s unique concerns and customizing treatment plans to match each person’s desires. Through self-evaluation and observation and by soliciting feedback from colleagues, Dr. Gregg strives to constantly be improving and enjoys continued education to give him more tools to improve his patients’ lives. In his spare time, he enjoys the outdoors, hiking, tennis and exploring food he has never had before at new restaurants.


Kevin Furmanek, DDS, MDDr. Furmanek was born and raised in Roseville, CA, and graduated from Granite Bay High School. His love for the greater Sacramento area prompted him to stay close to home and earn his Bachelor of Science degree in neurobiology, physiology and behavior at the University of California, Davis. After graduation he moved to New York City where he earned his Doctor of Dental Surgery from Columbia University, College of Dental Medicine. Graduating near the top of his class, he was inducted into the Omicron Kappa Upsilon honor society while also earning the American Association of Oral and Maxillofacial Surgery Award and the Exemplary Professional Conduct Award from the New York Academy of Dentistry.

After graduating from dental school he stayed on the east coast to pursue advanced training in oral and maxillofacial surgery at New York Presbyterian Hospital, perennially ranked as the #1 hospital in NY State and #5 in the nation in 2019. During his six years of training he learned from experts in dental implantology, orthognathic surgery, cleft lip and palate, maxillofacial pathology, reconstruction and trauma. He also earned a medical degree from Columbia University, College of Physicians and Surgeons and completed an internship in General Surgery. During his final year of training he served as Chief Resident in Oral and Maxillofacial Surgery at New York Presbyterian Hospital.

Although Dr. Furmanek has gained a large breadth of medical and dental knowledge, his greatest interest lies in dental implants and maxillofacial reconstruction, orthognathic surgery, sleep apnea, the temporomandibular joint, facial cosmetics, and maxillofacial pathology.

Dr. Furmanek takes pride in delivering patient-centered care with a gentle touch, empathy, and humility. Together with his excellent surgical skills and compassionate chairside manner, Kevin is beyond excited to return home and serve patients throughout the greater Sacramento area.


Maria, a registered dental hygienist for Sierra Oaks Dental Sacramento

Maria M. — Registered Dental Hygienist

Maria is very dedicated to her patients and her five children. She graduated from the University of California, San Francisco in 1988. Maria has loved many aspects of her job since joining Sierra Oaks Dental as a Registered Dental Hygienist in 1993; however, she specializes in delivering patient care and forming relationships with her patients that last a lifetime. Maria’s commitment to her patients is remarkable, and her patients have the same level of commitment to her.

Jose R

Jose R. – Registered Dental Assistant, Expanded Functions Dental Assistant II, Training and Development Leader

Jose joined our team in July of 2019. He is a 1999 graduate of Delta High School and attended SSC for a year and a half. He was involved in an accident that in a way, helped him find his life’s passion for dentistry. He graduated from Anthem College in 2003 and returned to school in 2011 to obtain his Expanded Functions license. He has been in dentistry since 2004 and continues to grow in his knowledge and skills. He loves helping people in our community feel better about their smiles.

Jose believes that being an Expanded Functions dental assistant allows the dentists to be available to see more patients since he is able to step in and finish dental procedures. He enjoys the great teamwork and family atmosphere at our office.

Jose became a father to a beautiful girl in 2018. She is the center of his universe and his motivation to become a better parent, friend and overall person. In his free time he likes to play soccer, draw and paint.

Betty, accountant for Sierra Oaks Dental Sacramento

Betty J. — Accountant

Betty studied accounting at college in Korea and San Francisco and joined our team in January 2017. Before she worked at Sierra Oaks Dental, she worked at a CDA office in San Francisco and as part of a Samsung information systems team in San Jose. Her second son is a musical actor in Hollywood!

Peter J, Property Maintenance Manager

Peter J. – Property Maintenance Manager

Peter joined Sierra Oaks Dental in the Fall of 2019 and has worked hard since then to make sure our office is always clean and organized. In addition to making everyone smile with his positive attitude, Peter enjoys making improvements to the building so the staff and patients have the best possible experience. In his free time he enjoys gardening and cooking.