Oscar Marin, DDS

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(626) 810-5000

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Map to Our Office

3660 Nogales St. Building H, Suite D.
West Covina CA, 91792

Yelp Review

Geneyem B. - 5 star
"I love this dentist. They are so good and gentle. My whole family goes here and my girls (who are 7 and 5) love it here. They know our names, there's never a long wait, and they are gentle with our treatments. Dr. Marin is a very good dentist. He explains everything thoroughly and my girls trust him while he does their treatment. I would recommend this dentist too anyone who is looking for one."

Top 10 Dentistry Clinics in West Covina, CA
Congratulations to Oscar Marin's Practice on being the on top Dentist in West Covina ranking of 2015.
Verified by Opencare.com

West Covina Smiles – Our Staff

Gentle, Expert and Affordable Dental Care


Oscar Marin D.D.S

Dr. Oscar Marin is a Cosmetic Dentist with a strong background in restorative and management of neuromuscular and TMJ problems.

He is a 1997 graduate of Javeriana University Dental School, one of the most prestigious schools in Latin America. He has been in practice for over 13 years.

Dr. Marin’s commitment to providing his patients with the latest and most advanced technology and techniques is the reason why he pursues continuous education. His genuine care and gentle touch is one of the number one compliments he receives from patients and why patients trust us with their health.


Apel Keuroghlian D.D.S., M.D.

Dr. Apel Keuroghlian is an Oral and Maxillofacial surgeon.

Dr. Keuroghlian graduated from UCLA. He also attended the University of Southern California where he acquired a degree in biomedical/biochemical engineering, and the USC School of Dentistry obtaining a dental degree, and at UCLA he furthered his education in Oral and Maxillofacial Surgery which includes a Medical Degree from UCLA.

Dr. Apel truly enjoys what he does and is committed to enhancing patient care by integrating his engineering, dental and surgical skills and education.


Marcela Marin D.D.S.

Dr. Marcela Marin graduated with honors from the International Dental Studies program at the Arthur A. Dugoni Scool of Dentistry in San Francisco CA. Dr. Marin earned her first degree in 2000 at the Universidad Nacional de Colombia in Bogota, where she worked for 5 years in her father’s practice.

Dr. Marin enjoys working with children and has ample experience in all areas of General and Cosmetic Dentistry.


Sylvia Navarro

Dental Hygienist

Sylvia is our much loved Registered Dental Hygienist ,she graduated from West Coast University Dental Hygiene School in Orange County in 2015.  Sylvia started working in the dental field 14 years ago as a dental assistant and has developed a passion for dentistry that shows in how she treats he patients.  She has also won the Superstar Service Award for our office in the 2017 Winter Quarter.  By the way – As a California native she enjoys playing Soccer on her days off.


Mayra Nungaray

Registered Dental Assistant


Jackie Venegas

Dental Assistant

Jackie is our dental assistant and ZOOM whitening Specialist. She much loved by our long time patients.  She has 7 years of dental assisting experience and she loves every minute of it.  You will recognize her by her friendly and often jovial attitude in the office.  Her favorite part of being a dental assistant is working with patients and treating them like family. She currently loves listening to reggaeton.  However she also admires and adores her favorite artist, Beyonce.


Eunice Ballina

Office Manager Treatment Coordinator


Claudia Rivas

Scheduling Coordinator

Claudia is our exceptional Scheduling Coordinator.  She has been working at West Covina Smiles as our receptionist since September 2016.  Her main goal is to keep her patients happy with all aspects of making and keeping patients appointments. As the first person who greets you in the office with a smile, her charming attitude and pleasant demeanor will have you leaving with a smile on YOUR face.  By the way – she loves coffee but hates using a straw.



Insurance Office Assistant

Anacaren is our dedicated Insurance Specialist.  started in our office as an ROP intern from Nogales High School in 2017.  Her hard work and exceptional work ethic earned her position. She values finding out solutions for problems, is reliable and resourceful.  On her spare time she enjoys going to the movies, going to concerts and admiring her Pineapple collection.


Gisselle Regalado

Public Relations


West Covina Smiles – Our Staff

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