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3109 Coffee Road, Suite A
Modesto, CA 95355
(209) 522-0001

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At Modesto Pediatrics, our team consists of experienced, compassionate pediatricians, nurse practitioners,  and friendly, nurturing staff members who take pride in giving our young patients the personalized pediatric care that they deserve.

We understand that you have a choice of pediatricians in the Central Valley area, and we appreciate your consideration. We can assure you that our providers are highly educated professionals who have undergone rigorous academic and clinical training in pediatrics. We maintain a high level of expertise through continuing education in order to provide the most up-to-date care for the young patients we are privileged to serve.

Modesto Pediatrics believes in a team approach to your child's health and well-being, so all of our doctors, and nurse practitioners, collaborate with parents to provide the highest level of care. We appreciate the opportunity to care for your child and pride ourselves on making pediatric care a pleasant experience for all of our patients.


Dena A. Lenser, M.D, F.A.A.P.

Dr. Lenser Attended Loma Linda University School of Medicine, in Loma Linda, CA graduating with her Doctor of Medicine degree in 1991.  She completed her Pediatric Residency at Loma Linda University Medical Center in Loma Linda, CA in 1998.  Dr. Lenser began practicing with Valley Oak Pediatric Associates in Modesto, CA in 1998, and in 2003 she followed her dream, and opened her own practice “Modesto Pediatrics”, with her friend and business partner Ann Marie Truscello, M.D.  Dr. Lenser is a Fellow of the American Academy of Pediatrics and is a Diplomat of the American Board of Pediatrics.  When not at work, Dr. Lenser enjoys Spending time with her two Children (Sarah & Cole) along with her Husband and the rest of her family, Reading, Cooking, and enjoying Outdoors.


  • Vital's Patients' Choice Award
  • Vital's On-Time Doctor Award
  • Vital's Compassionate Doctor Recognition
  • Vital's Patient's Choice 5th Anniversary Award
  • Vital's Compassionate Doctor Award 5 Year Honoree
  • Silver Medal - Best of Stanislaus, "Best Pediatrician" - 2015, 2016 & 2017
  • "Top Doctor" candidate to represent Modesto in The Global Directory of Who's Who Online - 2017


Ann Marie Truscello, M.D, F.A.A.P.

Dr. Truscello received her Bachelor’s Degree in Biology from The University of California, San Diego, CA in 1982.  She attended Pennsylvania State University, School of Medicine, graduating with her Doctor of Medicine degree in 1986.  Dr. Truscello completed an OB/GYN Internship at St. Joseph’s Hospital in Phoenix, AZ in 1987, then completed her Pediatric Residency at the same hospital in 1990.  She worked for Mercy Health Center in Bonita, CA as a Pediatrician from 1990-1993, then spent some time as a traveling Pediatrician with CompHealth-Kron Locum Tenens out of Salt Lake City, UT from 1993-1994 before going to work for The Carolina Permanente Medical Group in Durham, NC from 1994-1999.  Dr. Truscello, gave birth to twin girls in 1999.  She returned to work as a traveling Pediatrician with Physician Resources, Inc. Locum Tenens out of Houston, TX for a year, then moved on to The Permanente Medical Group in Richmond, CA from 2000-2001 before relocating to Modesto where she has made her home.  Dr. Truscello began practicing with Valley Oak Pediatric Associates in Modesto, CA in 2001, and in 2003 together with her friend and business partner Dena Ann Lenser, M.D. opened "Modesto Pediatrics".  Dr. Truscello is a Fellow of the American Academy of Pediatrics and is a Diplomat of the American Board of Pediatrics.  When not at work Dr. Truscello loves spending time with her four daughters (Megan, Rachel, Sarah, & Emma), Friends, Family, and Traveling as much as possible.


  • Associate Pediatric Medical Director at Community Hospice (Central Valley, CA)
  • Vital's Patient's Choice Award
  • Vital's On-Time Doctor Award
  • Selected as a "Top Pediatrician" in Modesto by the International Association of Pediatricians - 2017

Nurse Practitioners
Lisa J. Brush, FNP-C
Since 2016
Lisa was born and raised in Modesto, CA. She obtained her A.S. in nursing from Modesto Junior College in 2004, and began working as an RN for Memorial Medical Center at that time. She later returned to school and obtained her B.S.N. from CSU Stanislaus in Turlock, CA in 2008. Lisa was married that same year to her husband Steve, and their son Weston was born in 2009. She returned to school to achieve her career goal of becoming a Nurse Practitioner in 2013 through Georgetown University in Washington, D.C. She graduated in August of 2015 and began employment at Modesto Pediatrics in January of 2016. Lisa and her husband farm almond and walnut trees in the Modesto and Patterson areas and enjoy working outdoors together with their son. Lisa enjoys music, playing guitar, reading, and outdoor family activities such as camping and fishing.
Susan "Leslie" Simon, FNP-C
Since 2019
[BIO coming soon!]
Kirstin Bray, FNP-C
Since 2021
[BIO coming soon!]


Office Manager

Wendi Jones, M.A.
Since 2003

Medical Assistants
Christina Foulke, C.M.A.
Since 2011
Melissa Cook, C.M.A.
Since 2019
Paola Castro, M.A.
Since 2020
Amy Rose, M.A.
Since 2020
Natalie Contreras, M.A.
Since 2020

Maria Morales, M.A.
Since 2018 

Arcey Contreras, M.A.
Since 2003
Kim McMurray, M.A.
Since 2006