Meet Our Specialist Team

Specialist Doctors

 Dr. Tamman Sheabar

Dr. Tamman Sheabar, Endodontist

Dr. Sheabar has been practicing dentistry since 1999, after a long successful career in general dentistry he decided to dedicate his field to the specialty of endodontics. He was awarded his endodontic certificate from Boston University.

Treating patients with compassion and gentle care is Dr. Sheabar’s priority. He takes pride in his quality of treatment and understands that coming to the dentist to have a root canal procedure is not something anyone looks forward to, but relieving patients from pain and discomfort and saving natural teeth is an important role that the specialty of endodontics can give to patients.

In his free time, he loves spending time with his wife and two kids, swimming, running, reading, cooking and baking.

He is a member of many dental organizations including:

  • American Dental Association.
  • California Dental Association.
  • Tricounty Dental Society
  • American Association of Endodontics.

 Dr. Adrien Hamedi

Dr. Adrien Hamedi, Orthodontist and Periodontist

Dr. Adrien Hamedi is a dual-trained Periodontist and Orthodontist with a firm commitment to serving patients in the greater Los Angeles area. He received his bachelor’s degree, with magna cum laude honors, from UC Irvine. He then obtained his dental degree from the UCLA, where he was president of numerous clubs on campus, published several journal articles, and was the recipient of two clinical scholarships. Subsequently, he headed to the Ivy League campus of the University of Pennsylvania, where he completed a four-year dual residency in periodontics and orthodontics. Dr. Hamedi was named the J. George Coslet scholar during the final year of his program and also received the Director’s award upon graduation. Dr. Hamedi is currently a member of the American Academy of Periodontology (AAP) and the Academy of Osseointegration (AO). When he is not in the office, Dr. Hamedi enjoys traveling with his beautiful fiancée, hiking, eating out, sports (Go Lakers & Dodgers!), and concerts.

Hygiene Team



Marcella Madlock, RDH started her dentistry journey as a dental assistant. She graduated from Howard University in 1988 with her Dental Hygiene Certificate. She specializes in delivering personalized optimal care. She is laser certified and a member of the California Dental Hygienist Association.

Marcella has been married for 31 years and has 2 adult children. She enjoys spending time with her family.

Mary Beth

My name is Mary Beth. I am glad to have had the opportunity to work with Dr. Doshi. Here is a little bit about my background. I graduated from Tunxis Community College and then I graduated from the University of Connecticut Dental School in June 1986. I got certified in Dental Hygiene and Laser Certified.

Outside of work, I married a PE teacher/personal trainer. I have one son. I like to talk and play with two cockatiels in my free time. My hobby is running, refereeing youth club soccer, and reading the Bible. I am enjoying the time with my family.


Intern Team

Myhanh Nguyen, Rising Dental Student Intern

My name is Myhanh Nguyen. I am grateful to have the opportunity to work and gain dental knowledge at Dentistry by Dr. Doshi. I got the opportunity to assist Dr. Sanjay Doshi, Dr. Adrien Hamedi (Periodontist), and Dr. Sheabar (Endodontist). I really enjoy being at the dental office and seeing patients satisfied with their new look after the treatment is complete.

My dream is to become a dentist, so I can help more patients regain their confidence in their smiles’ appearance. I graduated in June 2021 with a bachelor’s in Biological Science from the University of California, Irvine. I received an Outstanding Organic Chemistry student (chemistry 81) at Mt. San Antonio College chemistry department. I also received Chancellor’s Excellence Scholars at UC Irvine. Moreover, I received a certificate from the National Society of Leadership and Success, NSLS, honor society. I was a member of the pre-dental society (PDS) and M.E.M.O. (Medical, Educational Missions, and outreach), in which I had the opportunity to volunteer and shadow student dentists from USC and UCLA, dentists from Care Harbor in Los Angeles, and many more events in Irvine, Anaheim, Corona…

My hobby is cooking. I can cook Vietnamese, Korean, American, Mexican, Indian, and Chinese food. I have my recipe, which I gain from experience. I like to play tennis, badminton, and swim. I was a tennis captain on the varsity team in High School. I was born in Vietnam and lived there for 14 years, so I am fluent in Vietnamese.

Are You in Need of Exceptional Dental Care?

Call us: 909-240-1784