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 strives to provide quality dental care with genuine commitment to the overall well-being of her patients. Dr. Heredia maintains professional memberships with the American Dental Association, 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 is fluent in Spanish and 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 Berkeley.

Nanditha Ranganathan, DDS

Dr. Nanditha Ranganathan loves catering to the needs of our patients! 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 San Francisco Dental Society, American Dental Association, and the CA Dental Association. Her outside interests include 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 attended UC Berkeley and then 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 returned to San Francisco to practice.  She is always accepting new patients.   She continuously strives to improve all smiles and improve oral health. She teaches part-time at UOP Dugoni School of Dentistry in the 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.


Office Manager

Cristina is dedicated to providing our patients with an amazing experience, beginning with the first phone call and continuing on throughout their visits. She grew up in Napa Valley and has been in the dental field for over nineteen years and loves it! The best part of her job is helping patients understand how important oral health 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.



Registered Dental Hygienist

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


Registered Dental Assistant

Fabiola was born and raised in the Bay Area. She returned 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 also a dog lover! She has a Siberian Husky named Kona that she unfortunately couldn't bring to the Bay Area with her. Thankfully, Kona is living with her loving parents. She is bilingual and fluent in Spanish. "Can't wait to see you in our office!"

Fabiola Mendoza


Dental Assistant

Mercy was born and raised in Oakland, CA. She has been a Dental Assistant for eight 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 watching soccer games with her husband. She‘s happily looking forward to welcoming you at Marina Grins Dental.


Insurance Coordinator

Raquel is a people person whose favorite part of the day is interacting with our patients and facilitating a positive experience with them. She has been in the dental field for over four years now. She is funny and makes everyone laugh! She works closely with all team members and patients to provide the ultimate care. Her goal with every patient is to help them become comfortable with the office and help them understand insurance benefits. She is a proud San Francisco native and a huge SF Giants fan. In her free time she loves to read, draw, and go to concerts with friends.


Dental Assistant

Lissette was born and raised in Sacramento. She has over fourteen years of customer service experience. She moved to San Francisco to join our amazing team where she takes pride in assisting our patients. She welcomes every patient with a warm 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.


Patient Coordinator

Adlyn is a proud third generation San Franciscan having grown up in the Excelsior District of South San Francisco. She has over thirteen years customer service experience having worked as a retail manager, patient coordinator, and a short stint in the wine industry. Adlyn is new to the Marina Grins team and is very excited to meet every patient & to get to know you! Her goal is to make your day brighter, whether it's recommending a great restaurant or being diligent in finding the right appointment time to fit with your busy schedule. In her free time she enjoys cooking, wine collecting, and has recently dabbled in fishing with her husband. She hasn't caught anything yet but loves discovering different lakes all over the Bay Area.   

Healthy Smiles

What does your smile say about you? Let us help you radiate confidence with a healthy smile.



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