Roger P. Fieldman, D.D.S.

Dr. Fieldman is a 1977 graduate of the UCLA School of Dentistry. He served as dental director from 1997 - 2018. He has also served as president of the Los Angeles Dental Society, Trustee of the California Dental Association, and President of the Los Angeles Oral Health Foundation. Dr. Fieldman also concurrently manages four dental clinics for the County of Los Angeles Department of Health Services. In his free time, he likes skiing, biking, sailing and fishing.

Sheryar Aslam, D.D.S.

Dr. Aslam is a 2005 graduate of the NYU School of Dentistry and completed a residency in periodontics in 2008. Dr. Aslam is also proficient in oral surgery, implant placement and prosthodontics. Dr. Aslam began serving as dental director in 2018. He and his wife Kiran (also on our staff) have two children.

Cecilia Woo, D.D.S.

Dr. Woo is a 1978 gradate of the UCLA School of Dentistry. She has practiced at UHH Dental for 40 years.

Salina Massei, D.D.S.

Dr. Salina Massei was born and raised in Chino Hills, California in San Bernardino County. She graduated magna cum laude with a Bachelor of Science degree in Biological Sciences from UCI in 2009. Dr. Salina obtained her Doctor of Dental Surgery degree from UCLA in 2014. Following this, she completed her Master of Public Health concurrently with her pediatric dental residency from UCLA in 2016. Dr. Salina is currently serving as faculty at UCLA Department of Pediatric Dentistry and is on staff at Providence Saint John’s Health Center Cleft Palate Clinic. Dr. Salina has a passion for helping others and providing a positive dental expeience for children. Her focus is on the prevention of dental disease and minimizing the need for dental treatment. In her free time, she loves baking cupcakes and spending time with her family and friends!

Huonglan Tran, D.D.S.

UCLA School of Dentistry, 1999

Gizelle Pera, D.D.S.

Dr. Gizelle Pera was born and raised in Los Angeles. She graduated with her B.A. in Biology from Claremont McKenna College and received her D.D.S. from UCLA School of Dentistry. She completed an Advanced Education in General Dentistry residency at the Long Beach Veteran Affairs center. Dr. Pera currently volunteers for Care Harbor, IMA Helps and Young and Healthy. She prides herself in providing the best quality care while making her patients feel comfortable. Dr. Pera loves to sing, backpack, practice her Spanish, and play sports.

Kai Chang, D.D.S.

Dr. Chang is a 2016 graduate of the UCLA School of Dentistry.

Dental Hygienists

Paulina Jo (PJ) Attebery, R.D.H.

PJ is a 1985 graduate of the USC School of Dentistry Dental Hygiene Program. She has been associated with Dr. Fieldman since then. PJ is the lead hygienist at Unite HERE. She is a past-president of the LA Dental Hygiene Association.

Jennifer Brewer, R.D.H.

Jennifer joined Dr. Fieldman’s practice in 1980 and began at the UHH Dental Center in 2006.

Donta Farrell, R.D.H.

The handsome and outgoing dental hygienist, Donta Farrell, graduated from the Cerritos College Dental hygiene program in 2012. He has practiced at Unite HERE Dental Center since 2013. Donta is married, with a one-year old daughter. In his free time, he likes to hike, yell at the TV while watching sports, and play video games.

Vania Petersen, R.D.H.

Janet Lor, R.D.H.

Janet is a graduate of the Cerritos College Dental Hygiene Program.

Kiran Aslam, R.D.H.

Kiran Aslam graduated from Concorde Career College in San Bernardino in 2012. She has been practicing as a dental hygienist at the Unite Here Dental Center since graduation. She is married and has 2 children. A true foodie at heart she loves exploring new restaurants and cuisines.

Nadia Nava, R.D.H.

Nadia graduated from Cerritos College and has being in the dental field for 11 years. She is from South America and has a 10 month old daughter and a dog. In her free time she likes to listen to music, watch movies and take her dog for long walks.

Jason Guzman, R.D.H.

Jason Guzman was born and raised in Atwater Village. He has been in the dental field since 1998, starting off as a Registered Dental Assistant. In 2007, he graduated top of his class from the Dental Hygiene Program at Pasadena City College. He has practiced at the Unite HERE Dental Center since graduation. In 2011, he became a Registered Dental Hygienist in Alternative Practice (RDHAP) which enables him to deliver dental hygiene care outside the traditional dental office setting such as in residential care facilities, assisted living centers, skilled nursing facilities, schools, and in residences of the homebound. In his free time he enjoys working on his vintage cars.


Dental Assistants with an RDAEF2 certificate provide limited care in support of the staff dentists. RDAEF2 assistants may make impressions, make temporaries, fabricate CAD/CAM crowns, place permanent restorations and cement crowns.

Diana Coronado, RDAEF2

Diana Coronado is an RDAEF and has been working at the Unite HERE Dental Center for 38 years. She graduated as an RDA from LA City College in 1980 and received her RDAEF from UCLA. She has returned to UCLA to complete her third license as an RDAEF2. Currently, Diana teaches X-ray and Infection Control classes for the LA Dental Society. Diana and her husband are parents of four children, three girls and a boy. In her free time she enjoys vacationing with her family.

Kristi Gallo, RDAEF

Kristin Gallo had been in the dental profession for over 25 years. She earned her RDAEF2 license from UCLA School of Dentistry. She is a California native and the L.A. Kings biggest fan.