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



I’ve been coming to Dr Marin office for more than 5 years, me and all my family love to come to this friendy office, where everybody knows you by first & last name. It makes me feel welcome & at home. Dr Marin & his staff are a very profesional team, always listens to my conserns regarding mine & my children dental heatlh, and explains it all in a undertandable way.

#57 – Brenda amador – 09/23/2013 – 11:50


From the first visit it has been nothing but posituve expieriences. The entire staff is extremely friendly and helpful. Dr Marin is wonderful! He is kind and patient, I especially appreciate how he thourouly explains things and his attention to the smallest details. I am so pleased that i hace now referred my entire family.

#55 – Calejoc@yahoo.coom – 05/24/2013 – 10:12


They do really good work.

#54 – Fred – 05/22/2013 – 13:45


Great Service!

I can’t say enough about Dr Marin and his wonderful staff. They always make me feel comfortable and at peace right before any procedure. I highly recommend this practice for anyone that expects safety, compassion, and professionalism. Dr. Marin and his team always leaves me walking out with a confident smile. I highly recommend West Covina Smiles. ๐Ÿ™‚

#53 – Marvella – 05/06/2013 – 12:02


Great dentist

My family and I have been coming to Dr. Marin’s for more than 4 years. I appreciate how attentive Dr. Marin has been to my family. I highly recommend Dr. Marin to anyone that is looking for a caring and attentive dentist.

#52 – Elva Pullenayegam – 05/06/2013 – 11:47


Great services!

I would like to say that I am very happy with all the staff and Dr Marin as well. Everyone is very polite and professional, punctual and always friendly.

#51 – Mericia Kennon – 02/20/2013 – 16:41


It had been very good,everyone its very friendly and professional.

#50 – Blanca coto – 02/19/2013 – 16:59


Estaba en busca de un buen lugar para tratarme mis dientes pero tenia temor de ir a un lugar que no fuera bueno y que lo unico que les interesara fuera el dinero. Cuando llegue con el Dr. Marin por medio de la publicidad que llega a casa, me encanto el trato tan amable y correcto desde la ersona que esta en el teefono, hasta el mismo doctor, me senti una persoa con uan necesidad, no una ersona con simbolo de dolares. gracias por toda la ayuda.

#49 – Esther Dominguez – 02/19/2013 – 13:30


I love the visit are always great, Dr marin its great i love his job , the staff are the best thanks Dr marin.

#48 – Griego cass – 02/11/2013 – 11:36


I am a new patient in this office and have yet to be disappointed with the dental work and services offered to me by Dr. Marin and his staff. Compared to other dental places, I have to honestly say that Dr. Marin and his staff exceed expectations at all levels. I am extremely happy with their services!

#47 – Pauline Uribe – 02/08/2013 – 11:16


I have been coming to Dr.Marin for several years and have always been pleased with his work. The good doctor and his staff are always courteous and efficeint”ch

#46 – Arthur Tiscareno – 02/07/2013 – 11:31


My Fear Is Gone ๐Ÿ˜‰

I just finished the first of many visits, it was a filling… It was so simple I practiclly Fell asleep!! It was so painless and I would come here for the rest of my life and recommend this to everyone!! THANK YOU SOO MUCH TO THE STAFF AND DR. MARIN FOR TAKING THE FEAR FROM THE DENTIST OFFICE!! SEE YOU SOON ๐Ÿ™‚

#45 – Erika – 02/06/2013 – 11:39


The clinic has friendly staff and everyone is very accomodating. Dr. Marin is very professional, approachable and a highly recommended dentist.

#44 – Herbert – 02/05/2013 – 13:10



I have known Dr.Marin for over 8 years he is very caring, very profesional, very patient, I’m so proud of him he is like part of our family. i onestly recomend him to anyone that needs an outstanding dentist. Thank you Dr. Marin!

#43 – Irma estrada – 12/24/2012 – 11:30


The best!

I am very picky on my dentist but onve i came here i did not hesitate to leave my old dentist. Best dentist around. Takes very good care of his patience. I know thats how i feell even the staff is friendly. They take the time out to help you with any questions. I even picked my new medical insurance around him. I am truely happy with everyone and everything!

#42 – Sarah – 12/12/2012 – 16:42


Very happy camper. The staff have been all smiles and professional. Can’t wait for my next appt. ๐Ÿ™‚

#41 – Juan blake – 12/03/2012 – 18:01


My husband and i have had a few procedures done and we are both very pleased. All that is going to be done has been explained in a very thorough manner. Everyone is very pleasant and proffessional. Dr. Marrin explains at each visit just exacly what he will be doing on that visit, and he takes the time to get to know each one of us. In addition to his proffessionalism dr. Marrin has a gentle hand. We will difinitely be here a long time. Thank dr. And staff

#40 – Sylvia melgoza – 12/03/2012 – 13:12


I like this dentist the one I use to go to was horrible but West Covina Smiles works with you if you cant afford evr

Everything at once they have great payment plans and also Dr. Oscar Marin and his staff are really really nice…..I love west covina smiles

#39 – Tiffany Johnson – 11/26/2012 – 13:13


Very satisfied with the Dr. and staff. They are very friendly and courteous. I would definitely recomend them.

#38 – Carina renteria – 11/20/2012 – 16:05


I’ve been coming to Dr Marin’s for years, love the service everybody is always friendly & caring, the minute i walk into the office they greet me by name with a great smile, Dr Marin is patient and always willing to answer all my questions & concerns, Diana takes her time to explain all financial parts & the best part they alway deal with insurance( i hate calling them)

I do recomend Dr Marin, my kids love them all as well

#37 – Brenda amador – 11/20/2012 – 13:20


First experience very good

Very good experience with office and staff . Dr marin was very gentle with me while doing my treatment and very patient. The staff is more than helpful .

#36 – Mrs Forbes – 10/08/2012 – 13:10


My visit

Great team and great work!! Overall very good experience. Thx Dr. Marin and staff!! : )

#35 – Claudia – 10/08/2012 – 11:31


Buena experiencia

Muy amable y su equipo el doctor es muy amable. Me puedo comunicar con el doctor porque hablo espanol. Muy serca de mi casa.

#34 – Aurora ortiz – 10/08/2012 – 10:37


Good Help

Sometimes it becomes very hard to find a Dentist at midnight. But Dr. martin helped me at midnight by providing a great treatment.

#33 – Dentist Castle Hill – 09/13/2012 – 13:32


It shows a great deal of entertaining facts as well as respecting content. The topic has the traits of simplicity but the article has an extensive impact. It happens to be effortless but well-informed. This happens to be a kind of site that happens to be incredibly uncommon to hunt online. I appreciate the blogger for the know-how shared.

#32 – russian dentist staten island – 09/12/2012 – 22:56


Mi comentario es que cuando vine por primera ves con el doctor marin me dio mucha comfiansa y tambien el personal, y ahora despues de tantos problemas que tenia todo esta muy bien y me siento mucho mejor. Gracias al doctor marin y a su personal….

#31 – Jose crespo – 07/03/2012 – 16:26


Todo me justo de aqui, me justa como las trabajadoras me tratan muy bien. El dr. Marin tiene muy buena persona y hace muy bien su trabajo me encanta.

#30 – Gilberto moreno – 07/03/2012 – 15:03


Top notch

Dr. Marin was recommended to me after my bro in-law received effective treatment from him. I have no regrets. Extensive work needs to be done to my teeth, but I come to my visits confident that Doc and company provides a comfortable, amiable, and satisfactory experience.

#29 – Mike C. – 05/17/2012 – 13:17


Everybody its really friendly , it took me a long time to find a great office. The most important its that evrybody here its very profesional .

#28 – Edmun estrada – 05/02/2012 – 09:58


Dr Marins office staff and dental staff provide very friendly and professional service. my wife and I had not had our teeth che ked on a long time and they worked on all our problems and issues to get us healthy again. They make sure that discomfort is minimal and painfree. Would recommend their service to anyone.

#27 – Jim – 05/02/2012 – 09:42


Ive realy been very satisfied with just about !!

#26 – Jordan ernie – 05/02/2012 – 09:28


My experience here

My visit to dr. Marin has been excellent. He explained everything that needed to be done. Would totally recommend this place to my friends.

#25 – Adrian grageda – 04/27/2012 – 12:11


Very calming

Dr. Marin is a very good dentist he makes u feel very safe and calm. The staff is very nice and they always make u feel welcome. I was afraid to go to the dentist but now I am not. Thank u Dr. Marin & staff for taking care of me & my family!!!

#24 – Luz Ortega – 04/27/2012 – 09:48


My Amazing Visits

From the moment I called to request information and get an appointment the staff was extremely helpful, friendly and professional. During and every visit After my first appointment that staff and doctor have been extremely nice and i am confident they will take great care of teeth. I would highly recommend them to my friends and family!

#23 – Sonia Jauregui – 04/24/2012 – 16:39


Happy Patient

Dr. Marin has a wonderful hand when working on patients! His staff is amazing.

#22 – Virginia meza – 04/24/2012 – 10:37


Happy ortho patient,

Very happy to get my braces off today dr.marin is awsome and very gentle!

#21 – Jorge gonzalez – 04/03/2012 – 12:02


Been a patient for four yrs friendly staff and appointments are always on time never late and very happy

#20 – Lourdes estrada – 04/03/2012 – 11:58


Happy and satisfied

Very happy with the staff always smiling very clean office.

#19 – Teresa galvez – 04/03/2012 – 11:54


Very Profesional

Dr. Marin and Staff are very curteous and friendly, always greeting you with a hello and a smile. Dr. Marin has the steadiest hands of any Dentist I have known, very knowledgable. I would recommend West Covina Smiles to all my family and friends.

#18 – Lui Esmenjaud – 03/07/2012 – 12:31


My First Viset

Everyone here is very welcoming. Never at one moment did i feel uncomfertable like in other offices. The docter does a great job in explaining his work, and all his aquipment is up to date. I highly recommend this office.

#17 – Melody Gonzalez – 03/02/2012 – 12:28


Doctor Marin is one of the BEST dentist in town! He is very professional. Likewise the entire staff is! I recomment him to anyone.

#16 – Rochelle hua – 02/27/2012 – 18:14


I finally found a great dentist!

I’m so glad I found Dr. Marin! I decided it was time to look for a new dentist after waiting 3 hours at my previous dentist just to get an x-ray and cleaning. Dr. Marin respects my time and doesn’t over book. Plus he always explains things thoroughly and answers all of my questions. I always have a comfortable experience.

#15 – Christine – 02/27/2012 – 15:50


My first visit

I was in pain at 8 months pregnant and needed a root canal fast. Dr. Marin was able to see me the next day and rid me of the pain. His staff is VERY friendly and I recommend him to others.

#14 – Jolawn – 02/27/2012 – 15:43


My first visit

I was in pain at 8 months pregnant and needed a root canal fast. Dr. Marin was able to see me the next day and rid me of the pain. His staff is VERY friendly and I recommend him to others.

#13 – Jolawn – 02/27/2012 – 13:17


Dr Marin is an excellent and very knowledgeable dentist.

#12 – Ray Pestana – 02/24/2012 – 10:04


Staff are really nice, they are not puchy they give you your time, i really like dr. Marin talking to him its like talking to my son . Its my favorite place to come when i have a problem because i know they will take care of me .

#11 – Eva brooks – 01/30/2012 – 16:22


Me siento perfecto muy bien gracias

#10 – Ancelmo campos – 01/30/2012 – 16:17


Its very hard to find a good dentist, but we are very lucky to have a wonderful dentist and friendly excellant staff. My experience here has been excellant.

#9 – Evelyn lopez – 01/27/2012 – 10:16


Its very hard to find a good dentist, but we are very lucky to have a wonderful dentist and friendly excellant staff. My experience here has been excellant.

#8 – Alis – 01/27/2012 – 10:14


My visit

My visit here with Dr. Martin was wonderful. I have had this tooth pain for many years he was able to help, even when he was not in the office. That was great of him to do that. In the past when i have had a tooth pulled it was painful, but, Dr Martin went in and out quick and painless. I would tell others to come to this office.

#7 – Alishia Rivera – 01/25/2012 – 15:47


My viste

Its been great.im happy with my work done.

#6 – Nancy toriz – 01/25/2012 – 11:54


My first visit here

My first visit here was great. Everyone on staff here is very nice and they all seem to be on the same page as each other. I came for a full exam and i liked how the dr. Marin went over every single thing with me before doing anything and how they had someone go over my insurance and billing before he did anything. I also appreciated how he made time for me to fix my chippied tooth that day since i had a wedding to attend the next day. Everyone here is very professional andhisworkon myfront chipped toothwas amazing, cant even tell i had a chip there like before. I would really recommend this dentist, and already told my famiky to try him out!

#5 – Jennifer Tan – 01/25/2012 – 10:07


Excellent job

The doctor did an excellent job, my daughter was very scared but he was very careful with her, she was very happy when all was done:)

#4 – Emily rivera – 01/24/2012 – 19:09


My experience here

It has been excellent, so good that even though we live far i would never change.

#3 – Maria muniz – 01/23/2012 – 15:08


My visit here

It has been very good, everyone is very professional,helpful and friendly too. I also wouldnt hesitate to recommend this dental office to my friends.

#2 – Abel mesa – 01/23/2012 – 11:26

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