Meet The Team

(415) 921-4132

 Marina Grins Dental Team

Elena Heredia, DDS

Dr. Elena Heredia is a native Californian who attended the University of California, Davis where she majored in Biological Studies. She obtained her Doctor of Dental Surgery degree from The University of California, San Francisco. Upon her graduation she was recognized as the Dean's scholar for demonstrating outstanding academic achievement and community service. Since her graduation from dental school Dr. Heredia has strived to provide the quality dental care with genuine commitment to the overall well-being of her patients. Dr. Heredia maintains professional memberships with the American Dental Associat​ion, California Dental Association, Academy of General Dentistry, and the San Francisco Dental Society. Dr. Heredia was born and raised in Los Angeles, California. She later relocated to Sacramento where she discovered her passion for dentistry. She resides in San Francisco with her family.

Kathleen Marcelo, DDS

Dr. Marcelo grew up in Los Angeles, CA. She graduated from the University of California, Irvine with a Bachelor’s degree in Biological Sciences. She then continued her studies at the University of California, San Francisco (UCSF) where she earned her Doctor of Dental Surgery (DDS) degree. Afterwards, she completed a General Practice Residency at Cambridge Health Alliance/Harvard School of Dental Medicine in Boston, MA. During her residency, she participated in numerous dental public-health and community outreach events to serve the needs of the local community. She is also currently conducting dental research at the Department of Dentistry at Boston Children’s Hospital.

Dr. Marcelo provides quality dental care to help her patients achieve a healthy smile. More so, she holds great value and commitment to patient education, prevention, and comprehensive dental care. Dr. Marcelo is a member of the American Dental Association and the California Dental Association.

In her free time, she enjoys going on group hiking trips and currently resides in San Francisco.

Nanditha Ranganathan, DDS

Dr. Nanditha Ranganathan is a dentist catering to the needs of the people
of San Francisco, CA. She is part of the Marina Grins Dental team. She
takes pride in providing patients with dental care that best suits their
oral needs. Dr. Ranganathan earned her dental degree from Ohio State
University. She was chief resident during her general practice residency at
Miami Valley Hospital. She believes in listening to each patient and
creating a partnership to maintain and improve lifelong oral health. Dr.
Ranganathan is an active member of the Chicago Dental Society, American
Dental Association, and the Ohio Dental Association. Her outside interest
includes cooking and playing the piano

Annum Hassan, DDS

Dr. Annum Hassan grew up in the Bay Area. After completing her
undergraduate education at UC Berkeley, she received her dental degree from
NYU College of Dentistry. She is an active member of the American Dental
Association, the California Dental Association, and the Santa Clara County
Dental Society. She regularly attends continuing education courses to stay
up to date with advances in dentistry and to provide patients with the best
possible care.

Dr. Hassan was drawn to dentistry for its direct positive impact in
people's lives. She believes in putting patients first and making sure they
are comfortable throughout any procedure. She enjoys seeing the
immediate difference in a patient's oral health after treatment and how it
can affect their overall health, confidence, and appearance.

Away from the office, Dr. Hassan likes traveling, trying new restaurants,
and spending time with friends and family.

Linda Kuo, DDS

Dr. Linda Kuo grew up in Kansas with midwest roots before moving to the west coast for school. She went to UC Berkeley for her bachelors and graduated with highest honors from the University of the Pacific, Arthur A Dugoni School of Dentistry. She completed her AEGD residency at Bay Pines Veterans Affair Hospital in Florida and came back to San Francisco for private practice.  She is always accepting new patients to improve their smiles and strives to better the dental health of her community and her patients. She teaches at UOP Dugoni School of Dentistry in pre-clinical courses and is a faculty member on the clinic floor. She is actively involved in her local and state dental societies and loves to stay busy within her professional career. Outside of dentistry, you'll find her outdoors somewhere hiking, backpacking, travelling or climbing.

Cristina Flemings

Office Manager

Cristina is dedicated to providing our patients with an amazing experience, beginning with the first phone call and continuing on through their visits. She grew up in Napa Valley and has been in the dental field for over twelve years and loves it! The best part of her job is helping patients understand how important oral care is. She is also a fabulous Dental Assistant. Cristina makes sure everyone feels at home and leaves the office with a smile. She loves to joke around. In her free time, she enjoys football and camping with her family and friends.


Kelli Wilson

Registered Dental Hygienist

Kelli Wilson grew up in Yuba City, California. She graduated from University of Southern California with a Bachelor's degree in Dental Hygiene in 2004. She has been practicing for over 15 years and her passion is connecting with patients. She is very easygoing and loves to smile! She comes from a large loving family and likes to treat her patients like they are family! On her spare time Kelli enjoys spending time with her husband and new baby girl as well as driving north to visit family and friends. She also enjoys Napa trips, traveling, broadway, trying new restaurants, and life in the city!

Nicole Rastegar

Registered Dental Hygienist

Nicole Rastegar grew up in Los Angeles, California. She graduated from University of Southern California with a bachelors degree in Dental Hygiene in 2019. Her passion is educating patients on their oral health and on
disease prevention. She always wants to ensure that she gives her patients the most optimum care! During her free time, Nicole loves to spend quality time with her husband and family.

Fabiola Mendoza

Registered Dental Assistant

Fabiola Mendoza was born and raised in the Bay area. Recently moved back to San Francisco after graduating from Carrington College Dental Assisting Program in Sacramento. She likes to keep the atmosphere light and fun to provide the ultimate care. You rarely catch her without a Smile on her face! She loves to spend her time outdoors going on adventurous hikes and camping throughout the bay. She loves to travel (hoping she can see as many countries as she can before parenthood) She is a dog lover! She has a Siberian Husky named Kona that she couldn't bring to the bay with her but she is living with her loving parents. She is Bilingual, fluent in Spanish. "Can't wait to see you in our office!" Fabiola Mendoza

Mercy Merino

Mercy Bernal was born and raised in Oakland, CA. She has been a Dental
Assistant for 8 years. She is dedicated to her job and is the most jolly,
kind hearted person you’ll encounter. Mercy is bilingual in English and
Spanish. When she’s not working, she loves to spend time with family,
hiking and watch soccer games with her husband. She‘s happily looking
forward on welcoming you at Marina Grins Dental.

Raquel Gharrity

Insurance Coordinator

Raquel Gharrity, as a people person, her favorite part of the day is interacting with our patients and being able to facilitate a positive experience with them. She has been in the dental field for over 3 years now. She likes to keep the office atmosphere light and fun and work closely with staff and patients to provide the ultimate care. Her goal with every patient is to help them become comfortable with the office and feel like part of the Diente Dental/ Marina Grins family. She is a proud San Francisco native, and a huge SF Giants fan and in her free time, she loves to read, draw, and go to concerts with friends.

Lissette Oropeza

Patient Coordinator/Dental Assistant

Lissette was born and raised in Sacramento. She has over 10 years of customer service experience and she recently moved to San Francisco to join our amazing team where she takes pride in assisting patients with a warm welcoming smile from the moment they walk in to the moment they leave. With Lissette's outgoing personality she helps assure patients they've made the right decision in making Marina Grins Dental their dental home. Her goal is to make patients feel comfortable and happy with the smile they are wearing. In her spare time she enjoys traveling, being outdoors and has a passion for singing.

Healthy Smiles

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